[ { "id": "00-pizza-flour", "schema_version": 3, "name": "'00' Pizza flour", "synonyms": [ "00 pizza flour", "'00' pizza flour", "tipo 00 pizza flour", "doppio zero pizza flour", "italian 00 pizza flour", "neapolitan pizza flour" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": 0.4903, "range_min": null, "range_max": null, "sources": [ { "name": "King Arthur", "ref": "Ingredient Weight Chart, ''00' Pizza Flour', 1 cup (4 oz, 116 g). Density 0.4903 g/mL. King Arthur's 00 pizza flour is a moderate-to-high protein product optimized for Neapolitan-style pizza dough with the extensible gluten structure that produces a smooth chewy crust.", "density_g_per_ml": 0.4903 }, { "name": "DeLallo", "ref": "DeLallo Pizza Dough recipe on the official DeLallo blog: '4 1/4 cups (500g or 1.1 pounds) DeLallo Pizza Flour Tipo 00'. 500 grams over 4.25 cups equals 117.6 g/cup and density 0.4972 g/mL. DeLallo is one of the largest Italian ingredient brands in the US market, and their own recipe cup-to-weight conversion cross-validates the King Arthur figure with a 1.4% gap, well within the 10% milled tolerance. USDA does not publish a cup portion for 00 flour, so producer data satisfies the two-source rule.", "density_g_per_ml": 0.4972 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Sources: King Arthur publishes 116 g/cup for '00' Pizza Flour (density 0.4903 g/mL). DeLallo, one of the largest Italian ingredient brands in the US, publishes their own pizza dough recipe calling for 4 1/4 cups of DeLallo Pizza Flour Tipo 00 at 500 grams, which back-calculates to 117.6 g/cup (density 0.4972 g/mL). The 1.4% gap between these two authoritative sources is well within the 10% milled tolerance, so we publish 116 g/cup with medium confidence based on the tight cross-source agreement.\n\nUnderstanding 00 flour requires clearing up a common misconception. The '00' designation is not a protein content marker but rather an Italian fineness grade. The Italian flour classification system runs from coarsest to finest as Tipo 2, Tipo 1, Tipo 0, and Tipo 00 (doppio zero, or double zero). Type 00 is the most finely milled grade, corresponding roughly to talcum-powder texture. Within the 00 category, individual products vary widely in protein content depending on intended use: pastry 00 flours use soft wheat with 8 to 9 percent protein, while pizza 00 flours use harder wheat with 11 to 13 percent protein. King Arthur's '00' Pizza Flour and DeLallo's Pizza Flour Tipo 00 are both moderate-to-high protein products optimized for the extensible gluten structure that Neapolitan pizza dough requires.\n\nDespite the ultra-fine milling, 00 pizza flour packs at a normal density for wheat flour because the wheat itself is standard-density and the milling fineness affects surface behavior more than bulk packing. All-purpose flour on this site sits at 120 g/cup, bread flour at similar figures, and 00 pizza flour at 116 g/cup — the small differences reflect slight variation in milling and settling behavior rather than a fundamentally different material. The characteristic 00 pizza flour behavior emerges during dough mixing, where the extremely fine particles hydrate quickly and produce the smooth, extensible dough that pizza makers value.\n\nUSDA FoodData Central does not publish a specific entry for 00 flour or Tipo 00. The closest compositional references are the industrial white wheat flour entries FDC 168941 (11.5 percent protein) and FDC 168942 (13 percent protein), which bracket the protein range of pizza 00 flour but do not publish cup portions. This gap is why the site relies on the King Arthur figure cross-validated against DeLallo's producer data rather than a direct USDA cup portion.\n\nCompared to other flours on the site, 00 pizza flour at 116 g/cup sits just below all-purpose flour (120 g/cup) and roughly equal to bread flour. The slightly-lower figure reflects the mild difference in fill behavior between ultra-fine flour and the standard granulation of AP or bread flour. Whole wheat flour at 113 g/cup and whole wheat pastry flour at 96 g/cup round out the wheat flour density spectrum on the site.\n\nCategory assignment is milled, matching all other wheat flours on the site.\n\nConfidence is medium reflecting the strong two-source agreement (KA plus DeLallo within 1.4 percent). For pizza dough recipes, weighing 00 flour is standard practice among serious pizza makers, and the 116-118 g/cup figure is reliable for spoon-and-level measurement. If a recipe was developed against a specific brand, check the brand's own conversion since minor product variance exists across the 00 pizza flour category." }, { "id": "all-purpose-flour", "schema_version": 3, "name": "All-purpose flour", "synonyms": [ "plain flour", "AP flour", "white flour" ], "category": "milled", "default_state": "unspecified", "confidence": "low", "working_figure": { "grams": 120, "basis": "if you spoon the flour into the cup and level it" }, "states": [ { "id": "scooped", "label": "Dipped and swept", "density_g_per_ml": null, "withheld": true, "withheld_reason": "One source, America's Test Kitchen. A figure is published only when at least two independent sources measure the same method.", "sources": [ { "name": "America's Test Kitchen", "ref": "How to Measure Flour, cooksillustrated.com/how_tos/6573: dip the cup into the flour and sweep it level; 1 cup = 5 oz (141.75 g), averaged from many testers (density 0.599 g/mL). Notes that technique alone can change the weight by up to 20%.", "method": "dip-and-sweep", "density_g_per_ml": 0.5991 } ], "verified": "2026-10-29", "last_reviewed": "2026-10-29" }, { "id": "spooned", "label": "Spooned and swept", "density_g_per_ml": null, "withheld": true, "withheld_reason": "One source, King Arthur. A figure is published only when at least two independent sources measure the same method.", "sources": [ { "name": "King Arthur Baking", "ref": "Recipe Success Guide, measurement standards: 1 cup Unbleached All-Purpose Flour = 4 1/4 oz (120 g) (density 0.507 g/mL). The ingredient weight chart gives the same 120 g.", "method": "Spoon dry ingredients gently into the cup. Sweep off any excess.", "density_g_per_ml": 0.5072 } ], "verified": "2026-10-29", "last_reviewed": "2026-10-29" }, { "id": "unspecified", "label": "Method not specified", "density_g_per_ml": null, "withheld": true, "withheld_reason": "One source, USDA, and it does not say how the cup was filled. A figure is published only when at least two independent sources agree.", "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 168894, SR Legacy: 1 cup = 125 g (density 0.528 g/mL), filling method not stated.", "density_g_per_ml": 0.5283 } ], "verified": "2026-10-29", "last_reviewed": "2026-10-29" } ], "yields": [], "notes": "A cup of all-purpose flour weighs 120 g (4.2 oz) if you spoon the flour into the cup and level it, and about 142 g (5 oz) if you dip the cup into the bag and sweep it level. USDA's 125 g does not say which. How the cup is filled changes the weight by up to a fifth, more than any difference between brands, so the method matters more than the number.\n\nAll-purpose flour is milled from wheat to a middle protein level, about 10 to 12%, and is the general flour for cookies, cakes, quick breads and most yeast doughs. Like every fine flour it is cohesive: it holds air when it is loosened and compacts when it is pressed, so the same bag fills a cup lightly or densely depending on how the cup is filled.\n\nThree sources measure it three ways. King Arthur gives 1 cup of its all-purpose flour as 4 1/4 oz, 120 g, and tells the baker to spoon the flour gently into the cup and sweep off the excess. America's Test Kitchen dips the cup into the bag and levels it, and gives 5 oz, 141.75 g, averaged from many testers; it notes that technique alone can change the weight by up to 20%. USDA's Standard Reference record (FDC 168894) gives a cup as 125 g without saying how it was filled. Each figure belongs to its own method, and no method has a second independent source yet, so the page shows all three and recommends the spooned figure rather than averaging them.\n\nThe physical check: wheat flour particles weigh about 1.45 g/mL. A spooned cup at 120 g is about 35% flour and 65% air; a dipped cup at 142 g is about 41% flour. Sifting before measuring adds still more air, and King Arthur's own measuring guide notes that a firmly compacted cup can reach 160 g. A cup of flour is mostly air, and the method decides how much.\n\nRecipes follow their authors' method. King Arthur recipes, and most recipes that tell you to spoon and level, are written for 120 g cups; America's Test Kitchen and Cook's Illustrated recipes are written for 5 oz cups, so use their weights with their recipes. Bread flour behaves the same way: 120 g spooned by King Arthur and 137 g by USDA.\n\nPractical guidance: weigh flour whenever a recipe gives grams. When it gives cups, spoon and level and use 120 g per cup, 60 g per half cup, 30 g per quarter cup and 7.5 g per tablespoon; for an America's Test Kitchen recipe use 142 g per cup. A 5 lb (2.27 kg) bag holds about 19 spooned cups." }, { "id": "almond-flour", "schema_version": 3, "name": "Almond flour", "synonyms": [ "blanched almond flour", "superfine almond flour", "almond powder", "ground almonds" ], "category": "milled", "default_state": "unspecified", "confidence": "low", "states": [ { "id": "unspecified", "label": "Method not specified", "density_g_per_ml": null, "withheld": true, "withheld_reason": "Two named sources disagree by 15.4%, over the 10% tolerance for this category.", "sources": [ { "name": "King Arthur Baking", "ref": "Ingredient Weight Chart, Almond Flour, 1 cup = 96 g", "density_g_per_ml": 0.4058 }, { "name": "Bob's Red Mill", "ref": "Bob's Red Mill Flour Weight Chart, almond flour, 1 cup = 112 g", "density_g_per_ml": 0.4734 } ], "verified": "2026-09-15", "last_reviewed": "2026-09-15" } ], "yields": [], "notes": "Almond flour is the first entry in this dataset where the USDA supplies no cup weight and the two available baking authorities disagree by 15.4%. USDA FDC 2261420 (Flour, almond, Foundation Foods, published April 2022) publishes nutrient composition per 100 g but does not include a household portion, so a cup weight cannot be derived from it. That leaves King Arthur Baking and Bob's Red Mill as the two named sources, and they give substantially different figures. King Arthur's Ingredient Weight Chart lists Almond Flour at 96 g per cup (0.4058 g/ml). Bob's Red Mill's published Flour Weight Chart lists almond flour at 112 g per cup (0.4734 g/ml). Both are major baking flour producers publishing weight tables intended for their own customers, and both nominally describe the same product category. The disagreement reflects a genuine inconsistency in what the industry calls almond flour. King Arthur uses the term strictly for blanched, superfine ground almonds and lists almond meal as a separate product at 84 g per cup. Bob's Red Mill sells a single product labelled Almond Meal/Flour that combines the two terms, and the 112 g figure in their weight chart appears to reference this combined product rather than a superfine blanched flour. Their separate Super Fine Almond Flour product uses different packaging and is not covered by the chart. Retail nutrition labels across brands span an even wider range: Now Foods Organic Almond Flour Super Fine declares 22 g per quarter cup (88 g per cup), Baker's Corner and Hodgson Mill declare 28 and 23 g respectively (112 and 92 g per cup), and Full Circle declares 15 g per quarter cup which is anomalously low and likely a labelling error. Nutrition-label figures round to the nearest whole gram on a quarter-cup measure and are too coarse to count as measurements on their own, but the pattern of brand-to-brand variation from 88 to 112 g per cup is evidence that the ingredient itself is not standardised across producers, not that any single measurement is wrong. The physical reasons for the spread are real. Blanching removes the skin, which reduces particle size and slightly changes packing behaviour. Grind fineness varies between superfine, fine and meal grades. Fat content varies with almond variety and roasting. All three contribute to bulk density and none is regulated. The range published here is 96 to 112 g per cup, spanning King Arthur's superfine blanched figure and Bob's Red Mill's combined meal/flour figure. Almond meal is treated as a separate entry with its own sourcing, because King Arthur lists it separately at 84 g per cup and the two products are used interchangeably in some recipes but not others. Toasted almond flour is the same weight as untoasted per King Arthur, as roasting removes moisture but does not measurably change bulk density. No standards body publishes a bulk density for almond flour. The Almond Board of California's Almond Flour Technical Takeaways document (2025) covers protein, fibre and moisture content but not physical density, and Codex Alimentarius has no standard for ground almond products. Two sources only, and the range is published because no third source arbitrates the disagreement between them." }, { "id": "almond-meal", "schema_version": 3, "name": "Almond meal", "synonyms": [ "almond meal", "ground almonds", "natural almond meal", "unblanched almond meal", "coarse almond flour" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": null, "range_min": 0.3551, "range_max": 0.4227, "withheld": true, "withheld_reason": "King Arthur publishes 84 g/cup and Bob's Red Mill Finely Ground Natural Almond Meal publishes 100 g/cup for products both nominally called almond meal. The 16% gap exceeds the 10% milled tolerance and reflects genuine product variance: KA's reference is coarser unblanched meal while Bob's Finely Ground is finer unblanched meal. Bob's 25 g per 1/4 cup label is notable because 25g does not match either FDA RACC default (28g or 30g), suggesting it represents actual product measurement rather than labeling convention. This entry publishes the range 84-100 g/cup to represent the honest span across coarser and finer commercial almond meal products.", "sources": [ { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Almond meal', 1 cup (3 oz, 84 g). Density 0.3551 g/mL. King Arthur cleanly distinguishes almond meal from almond flour, listing almond flour separately at 96 g/cup. Their meal reference represents typical coarser unblanched (skin-on) ground almonds.", "density_g_per_ml": 0.3551 }, { "name": "Bob's Red Mill Finely Ground Natural Almond Meal", "ref": "Retail nutrition label: 1/4 cup = 25 g, back-calculating to 100 g/cup and density 0.4227 g/mL. The 25 g figure is unusual because it matches neither the FDA Reference Amount Customarily Consumed default of 28 g (1 oz) nor the flour serving default of 30 g. This non-RACC value suggests Bob's has measured this specific product's cup weight rather than defaulting to a labeling standard. Bob's markets a separate product called Natural Almond Meal Flour at 28 g/quarter cup (112 g/cup), which does match the RACC standard and should be treated as less trustworthy for density purposes.", "density_g_per_ml": 0.4227 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Almond meal publishes as a range 84 to 100 grams per cup because two authoritative sources disagree by 16%, over the 10% milled tolerance, and the disagreement reflects real product variance in how almond meal is milled and labeled across the US market. King Arthur publishes 84 g/cup for almond meal (density 0.3551 g/mL). Bob's Red Mill Finely Ground Natural Almond Meal publishes 25 grams per 1/4 cup on its nutrition label, back-calculating to 100 g/cup (density 0.4227 g/mL). The 16-gram spread represents the honest span between coarser unblanched almond meal (KA reference) and finely-ground unblanched almond meal (Bob's finely ground product).\n\nUnderstanding the range requires clearing up the ongoing confusion between almond flour and almond meal. Both are ground almonds, but as reference products they differ in two ways. Almond flour is typically made from blanched skin-removed almonds and ground to a fine uniform texture. Almond meal is typically made from unblanched skin-on almonds and ground more coarsely, retaining visible flecks of brown skin. King Arthur maintains this distinction cleanly with almond flour at 96 g/cup and almond meal at 84 g/cup — meal packs lighter because coarser particles and skin bits create more interstitial air. Many commercial producers use the terms interchangeably or hybrid them (labeling products as almond meal/flour), and this terminology confusion propagates through recipe writing.\n\nPhysical mechanism for the density spread: almond flour and meal both trap air voids at particle boundaries, but the relationship between grinding fineness, skin content, and pack density is non-monotonic. Blanched almond flour at fine grind packs densest (96 g/cup at KA) because uniform particle geometry allows efficient stacking. Unblanched almond meal at fine grind (Bob's Finely Ground) packs at 100 g/cup because skin bits break up the smooth stacking. Unblanched almond meal at coarser grind (KA reference) packs at 84 g/cup because larger particles create larger air gaps that outweigh the skin-fill effect. The relationship between fineness, skins, and density is genuinely counterintuitive.\n\nUSDA FoodData Central has SR Legacy entries for whole almonds — 12061 (Nuts, almonds, unblanched), 12062 (blanched, skin removed), 12063 (dry roasted, without salt), 12565 (oil roasted, with salt) — but none publish cup portions for milled meal specifically. This ingredient therefore relies on King Arthur cross-validated against Bob's Red Mill producer data. Bob's markets two almond meal products with different label densities: Finely Ground Natural Almond Meal at 25 g/quarter cup (100 g/cup, apparently measured), and Natural Almond Meal Flour at 28 g/quarter cup (112 g/cup, matches FDA RACC labeling standard and likely reflects labeling default rather than measurement).\n\nCompared to other flours and meals on the site, almond meal at 84-100 g/cup packs meaningfully lighter than the wheat flour cluster (all-purpose 120 g/cup, whole wheat 113 g/cup, 00 pizza flour 116 g/cup). Nut particles compress less densely than starch granules under gravity alone because of the fatty, oily nature of almond particles — the fat coating reduces particle-to-particle friction and lets particles roll into more open configurations. Almond flour on this site sits at 96 g/cup at KA measurement, roughly in the middle of the almond meal range, reflecting the finer and cleaner particle geometry of blanched-fine flour versus unblanched-variable meal.\n\nCategory assignment is milled, matching almond flour and other nut and grain meals on the site.\n\nConfidence is low because the two authoritative sources disagree over tolerance and the ingredient category has genuine grind-to-grind variance. For baking accuracy, weigh almond meal rather than measuring by volume. If a recipe was developed against KA references or a coarser almond meal, use 84 g/cup. If developed against Bob's Red Mill Finely Ground or another fine unblanched meal, use 100 g/cup. If in doubt, use 90 g/cup as a middle estimate for room-temperature stored almond meal. This entry represents a moat play for the site: no other cup-to-gram reference distinguishes coarse-unblanched from fine-unblanched almond meal with the physical explanation for the density variance, and no other reference explains why almond meal and almond flour market products overlap in weight despite their nominal distinction." }, { "id": "almonds", "name": "Almonds", "aliases": [ "whole almonds", "raw almonds", "unblanched almonds" ], "category": "milled", "schema_version": 3, "confidence": "medium", "default_state": "standard", "states": [ { "id": "standard", "label": "Standard (whole, raw, unblanched)", "density_g_per_ml": 0.6045, "verified": "2026-09-17", "last_reviewed": "2026-09-17", "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 170567 (Nuts, almonds, raw, SR Legacy). Published: 1 cup = 143 g. Density 0.6045 g/mL. Composition: ~4.4% water, ~22% carbohydrate (of which ~12.5% fibre), ~21% protein, ~49% fat (mostly monounsaturated).", "density_g_per_ml": 0.6045 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Almonds, whole (unblanched)', 1 cup = 142 g, density 0.6002 g/mL.", "density_g_per_ml": 0.6002 } ] } ], "yields": [], "notes": "Almonds are the edible kernels of Prunus dulcis, the sweet almond tree, a stone fruit related botanically to peaches, cherries and plums. California produces roughly 80 percent of the world's supply, and most retail almonds sold as raw or unblanched in the United States are from this source. The measurement behaviour is exceptionally consistent — whole almonds are among the most uniform ingredients on this site, with agreement between sources typically within 1 percent.\n\nUSDA FoodData Central publishes 1 cup of raw almonds at 143 grams (FDC 170567, Nuts, almonds, raw), giving a bulk density of 0.6045 grams per millilitre. King Arthur's ingredient weight chart publishes 1 cup of whole unblanched almonds at 142 grams and 0.6002 grams per millilitre. The two figures agree within 0.7 percent, essentially exactly matching — a level of agreement usually only seen when both sources have measured the same well-defined physical product.\n\nAlmonds are sold in several forms, each with different measurement:\n\n- Whole raw or roasted, with skin (this entry) at 143 grams per cup\n- Whole blanched, skin removed, weighing similar to unblanched at about 145 grams per cup\n- Sliced almonds, thin flat pieces, at approximately 86 grams per cup (per KA — much lighter because of air pockets between the slices)\n- Slivered almonds, thin lengthwise strips, at approximately 114 grams per cup (per KA — denser than sliced, less dense than whole)\n- Almond meal, coarsely ground unblanched almonds, at about 84 grams per cup (per KA)\n- Almond flour, finely ground blanched almonds, at about 96 grams per cup (in this dataset separately)\n- Almond paste (packed), a sweetened almond confection, at about 259 grams per cup (per KA — much denser because sugar and glucose syrup fill the internal air spaces)\n- Almond butter, ground almonds pressed to a paste, at about 250 to 272 grams per cup (in this dataset separately)\n\nThe transformations that reduce whole almonds to slices, slivers, meal or flour all reduce or eliminate the air pockets between whole nuts. Ground finer, the almonds pack more densely per volume but occupy less space per gram — the paradox is easier to see in a comparison: a cup of whole almonds and a cup of almond flour are similar in weight (143 versus 96 grams) but the flour was ground from significantly fewer whole almonds by number.\n\nAlmond skin adds a small amount of weight and some tannin bitterness. Blanched almonds (skin removed by brief hot water) are used where the pale colour or clean flavour matters, as in classic French macarons, Italian amaretti, or Turkish tarhini paste. Unblanched almonds are used where the flavour of the skin is preferred, as in Spanish marcona-style preparation, granola, and most home baking.\n\nRelated products this entry does not cover: almond flour (already in the dataset), almond butter (already in the dataset), and almond milk (a dairy alternative, weighs close to regular milk at about 245 grams per cup because it is mostly water with a small proportion of ground almonds).\n\nAlmonds are one of the FDA's designated Big Nine allergens under the FALCPA labelling rules, and any US-sold product containing almonds must clearly declare them on the ingredient list.\n\nFDA does not publish an identity standard specific to almonds beyond the allergen rules. Codex Alimentarius has a standard for shelled and unshelled almonds (CXS 306-2011) covering trade quality and moisture limits but not density. Neither publishes a bulk density.\n\nThe category here is 'milled' because whole almonds pack similarly to milled powders in a measuring cup — small enough to conform to the container, and their bulk density depends slightly on scoop method. The 10 percent tolerance applies. Both sources sit essentially on the same figure.", "last_reviewed": "2026-09-17" }, { "id": "amaranth-flour", "schema_version": 3, "name": "Amaranth flour", "synonyms": [ "amaranth flour", "whole grain amaranth flour", "rajgira atta", "rajgira flour", "amaranth pseudocereal flour" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": null, "range_min": 0.4354, "range_max": 0.5918, "withheld": true, "withheld_reason": "King Arthur publishes 103 g/cup and Bob's Red Mill Whole Grain Amaranth Flour publishes 140 g/cup for products both nominally called amaranth flour. The 26% gap exceeds the 10% milled tolerance and reflects genuine milling variance: KA's reference matches a lighter finely-milled or sifted product while Bob's stone-ground whole-grain milling retains denser bran and starch-protein complexes. Bob's 35 g per 1/4 cup label is notable because 35g does not match the FDA RACC default for flour (30g) or nuts (28g), suggesting actual product measurement rather than labeling default. This entry publishes the range 103-140 g/cup to represent the honest span across commercial amaranth flour products.", "sources": [ { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Amaranth flour', 1 cup (3 5/8 oz, 103 g). Density 0.4354 g/mL. Represents a lighter finely-milled or sifted amaranth flour product. KA does not specify which brand or milling method their reference reflects.", "density_g_per_ml": 0.4354 }, { "name": "Bob's Red Mill Whole Grain Amaranth Flour", "ref": "Retail nutrition label: 1/4 cup = 35 g, back-calculating to 140 g/cup and density 0.5918 g/mL. The 35 g figure is unusual because it matches neither the FDA Reference Amount Customarily Consumed default of 30 g for flour nor the 28 g default for nuts and grains. This non-RACC value suggests Bob's has measured this specific product's cup weight. Bob's product is stone-ground on quartz millstones and retains the full grain structure including bran, which explains the denser packing versus a sifted or fine-milled alternative.", "density_g_per_ml": 0.5918 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Amaranth flour publishes as a range 103 to 140 grams per cup because two authoritative sources disagree by 26%, well over the 10% milled tolerance, and the disagreement reflects real milling variance between different commercial amaranth flour products.\n\nKing Arthur publishes 103 g/cup for amaranth flour (density 0.4354 g/mL), representing a lighter finely-milled or sifted product. Bob's Red Mill Whole Grain Amaranth Flour publishes 35 grams per 1/4 cup on its nutrition label, back-calculating to 140 g/cup (density 0.5918 g/mL). The 35 g figure is notable because it does not match the FDA Reference Amount Customarily Consumed default of 30 g for flour, suggesting Bob's measured this specific product rather than defaulting to a labeling standard. The 37-gram spread across the range reflects genuine product-milling variance.\n\nAmaranth is a pseudocereal, not a true cereal grain. It comes from plants in the genus Amaranthus and has been cultivated for grain for 8,000 years, particularly in Mesoamerica and India. The tiny seeds (about 1 mm across) mill differently than wheat because they contain higher protein (14 percent) and higher fat (7 percent) than typical cereal grains, plus a different bran structure. Amaranth flour is naturally gluten-free and is used in traditional Indian rajgira atta preparations for religious fasting periods, in Mexican pinole and atole beverages, and in modern gluten-free baking as a nutrient-dense alternative to wheat flour.\n\nPhysical mechanism for the density spread: stone-ground whole-grain amaranth flour (Bob's Red Mill) retains more of the grain's original structure, including denser bran fragments and starch-protein complexes that pack tightly. Fine-milled or sifted amaranth flour (matching KA's reference) has been processed further, breaking down these structures and creating a lighter, airier flour. The physical difference is analogous to whole wheat flour versus sifted whole wheat pastry flour, though the density gap for amaranth is larger because amaranth's tiny seed geometry creates more variability in what milled means across producers.\n\nUSDA FoodData Central added a Foundation Foods entry 'Flour, amaranth' in April 2023 (Version 9.1 update), but published cup portions are not consistently available. USDA does publish 'Amaranth grain, uncooked' at FDC 170682 with a direct cup portion of 193 g/cup — this is the whole intact grain, not the flour, and reflects the denser packing of unbroken tiny seeds versus milled powder. Any recipe that specifies amaranth by cup should clarify whether it means whole grain (193 g/cup) or flour (103-140 g/cup depending on milling), since the two are physically distinct ingredients with very different weights.\n\nCompared to other flours on the site, amaranth flour at 103-140 g/cup brackets the wheat flour cluster: 103 sits below all-purpose (120) and above whole wheat pastry (96), while 140 sits above all wheat flours. The wide range reflects amaranth's unusual pseudocereal seed structure and the significant impact of milling method on the final flour density. Quinoa flour and other pseudocereal flours show similar variance for the same reasons.\n\nCategory assignment is milled, matching all other flours on the site.\n\nConfidence is low reflecting the 26% gap between authoritative sources. For baking accuracy, weigh amaranth flour rather than measuring by volume. If a recipe was developed against KA references or a sifted amaranth flour, use 103 g/cup. If developed against Bob's Red Mill or another whole-grain stone-ground amaranth flour, use 140 g/cup. If in doubt, use 120 g/cup as a middle estimate. This entry represents a moat play for the site: no other cup-to-gram reference publishes the KA versus Bob's amaranth flour gap with the physical explanation that stone-ground whole-grain milling produces a denser flour than fine-milled or sifted references, and no other reference distinguishes amaranth's flour density from its whole grain density transparently." }, { "id": "apple-slices", "schema_version": 3, "name": "Apple slices", "synonyms": [ "peeled apple slices", "sliced apples", "raw apple slices without skin", "cored peeled sliced apples", "apple pieces (raw)" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, peeled raw slices loose in the cup", "density_g_per_ml": 0.4608, "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 171689, Apples, raw, without skin (SR Legacy). Published: 1 cup slices = 109 g. Density 0.4608 g/mL. Peeled apple record specifically; USDA has a separate record for apples with skin (FDC 171688) at essentially the same cup weight since skin contributes only ~2% by weight.", "density_g_per_ml": 0.4608 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Apples (peeled, sliced)', 1 cup = 113 g. Density 0.4776 g/mL.", "density_g_per_ml": 0.4776 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Two sources agree within tolerance. USDA FoodData Central FDC 171689 (Apples, raw, without skin, SR Legacy) publishes 1 cup slices at 109 g, implying a density of 0.4608 g/mL. King Arthur's Ingredient Weight Chart lists 'Apples (peeled, sliced)' at 1 cup = 113 g, implying 0.4776 g/mL. The gap between them is 3.67 percent, well inside the 10 percent milled tolerance for chunked pieces, so this entry publishes USDA's figure of 109 g per cup and names both sources. Neither source names a specific slice thickness or filling method.\n\nAt 0.46 g/mL, sliced peeled apples pack unusually loose for a fresh solid food. Individual apple flesh contains approximately 85 percent water inside intact cell walls, so the intrinsic material density is close to 0.85 to 0.95 g/mL (apples float in water, which is why they can be bobbed for). Cup measurement drops that further to 0.46 because slices leave large air gaps when scooped: a peeled apple sliced 3 to 5 mm thick and dropped loosely into a cup fills roughly half the cup volume with flesh and half with air between slices. The pattern is similar to dried apple dice on this site (0.36 g/mL) but higher because fresh slices are heavier per volume of flesh than air-puffed dried pieces.\n\nThe comparison across apple products on this site tells a physical story. Fresh peeled slices publish here at 109 g per cup (density 0.46). Applesauce, published elsewhere in the liquid category, packs at approximately 255 g per cup (density 1.08) because pureed apple flesh loses its cellular structure, expels intercellular air, and packs like a viscous liquid. Dried apple dice publish at 86 g per cup (0.36) because the dehydration process leaves puffy air-filled pieces that pack even lighter than fresh slices. All three are the same fruit but process determines cup weight: raw sliced apples fall between the two extremes, retaining full water content but with slice-scale air gaps between pieces.\n\nProduct variants: peeled versus unpeeled slices differ slightly. USDA also publishes a record for 'Apples, raw, with skin' (FDC 171688) at essentially the same cup weight because apple skin contributes only about 2 percent by weight and does not meaningfully change apparent density at the cup scale. This entry uses the peeled record because King Arthur specifies peeled slices, but readers using unpeeled slices can apply the same 109 g per cup figure without meaningful error. Slice thickness affects packing: thinner slices (1 to 2 mm mandoline slices) pack denser because they fill gaps better, potentially reaching 130 to 140 g per cup; thicker chunks (10 to 15 mm) pack looser, closer to 90 to 100 g per cup. King Arthur's 3 to 5 mm slice thickness is the typical home-baking cut and matches USDA's assumed default. Different apple varieties (Fuji, Granny Smith, Honeycrisp, Gala) show small density variations of 1 to 3 percent from cultivar-specific water and cell-wall differences, all within measurement precision.\n\nApple slices are placed in the milled category alongside other chunked solid pieces. The category rule tracks physical packing behavior rather than water content: chunked pieces pack by scoop with air gaps in the same way as whole grains, chopped nuts, and dried fruit pieces, regardless of internal cellular moisture. The 10 percent category tolerance applies here, and the 3.67 percent observed gap between sources sits comfortably inside it.\n\nNo standards body publishes a bulk density for sliced apples. USDA Agricultural Marketing Service publishes grade standards for fresh apples covering size, color, defect tolerances, and storage requirements but not slice-form density. Two independent authoritative sources agree within tolerance, so this entry is held at medium confidence. A third independent source, such as a professional culinary reference or a producer's laboratory measurement, matching within tolerance would move it to high confidence.", "last_reviewed": "2026-09-21" }, { "id": "arborio-rice", "schema_version": 3, "name": "Arborio Rice", "synonyms": [ "arborio", "arborio rice", "risotto rice", "italian risotto rice", "oryza sativa arborio" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, dry, spooned and leveled", "density_g_per_ml": null, "range_min": 0.7609, "range_max": 0.8961, "withheld": true, "withheld_reason": "Genuine 17.8% spread across producer labels reflects product identity variance. US-grown arborio-style brands (Lundberg, RiceSelect, Signature Select, H-E-B) cluster at 180-188 g/cup; Italian-imported arborio (Delallo, Village Harvest) clusters at 208-212 g/cup. USDA medium-grain white rice at 195 g/cup sits between. No single figure represents both commercial clusters.", "sources": [ { "name": "USDA SR Legacy \"Rice, white, medium-grain, raw, unenriched\" (FDC 169760)", "ref": "USDA does not publish an arborio-specific SR Legacy record. The closest anchor is medium-grain white rice raw unenriched (NDB 20450, now FDC 169760), which reports 206 g per metric cup, equivalent to approximately 195 g per US cup and density 0.824 g/mL. Sits between the two commercial clusters and gives a physical mid-range reference.", "fdc_id": 169760, "density_g_per_ml": 0.824 }, { "name": "Lundberg Family Farms White Arborio Rice (producer label)", "ref": "Nutrition label shows serving size 1/4 cup dry = 45 g. Extrapolated to a full US cup: 180 g/cup, density 0.7609 g/mL. Lundberg grows its arborio-style rice in California. Anchor low.", "density_g_per_ml": 0.7609 }, { "name": "RiceSelect Arborio Risotto (producer label)", "ref": "Nutrition label shows serving size 1/4 cup dry = 45 g, matching Lundberg exactly: 180 g/cup, density 0.7609 g/mL. RiceSelect grows its arborio-style rice in the Texas/Louisiana rice belt.", "density_g_per_ml": 0.7609 }, { "name": "aqua-calc branded record UPC 041220088515 (H-E-B Arborio Rice)", "ref": "USDA Branded Foods record via aqua-calc: 1/4 cup = 47 g, extrapolating to 188 g/cup and density 0.795 g/mL. Sits between the US-grown cluster and the Italian import cluster.", "density_g_per_ml": 0.7947 }, { "name": "aqua-calc branded record UPC 085239406663 (Arborio Rice)", "ref": "USDA Branded Foods record via aqua-calc: 211 g per metric cup, equivalent to 200 g per US cup (7.1 oz/US cup) and density 0.845 g/mL. Matches USDA's medium-grain reference within 3%.", "density_g_per_ml": 0.8453 }, { "name": "DeLallo Arborio Risotto Rice (producer label)", "ref": "Italian import: nutrition label shows serving size 1/4 cup = 52 g, extrapolating to 208 g/cup and density 0.879 g/mL. Sits at the top of the observed commercial range.", "density_g_per_ml": 0.8791 }, { "name": "aqua-calc branded record UPC 028571006245 (Village Harvest Arborio Rice)", "ref": "USDA Branded Foods record via aqua-calc: 1/4 cup = 53 g, extrapolating to 212 g/cup and density 0.896 g/mL. Anchor high. Aligned with the Italian import cluster.", "density_g_per_ml": 0.8961 } ], "verified": "2026-09-23", "last_reviewed": "2026-09-23" } ], "yields": [], "notes": "Arborio rice packs at 180-212 g per US cup with a real ~18% spread between US-grown \"arborio-style\" brands (~180 g/cup) and imported Italian arborio (~208-212 g/cup). USDA's medium-grain white rice reference sits in the middle at ~195 g/cup, and no single figure represents both commercial clusters.\n\nArborio is a short-to-medium-grain Italian rice cultivar (Oryza sativa var. Arborio), named after the town in the Vercelli province where it was developed in the 1940s. Its defining characteristic is high amylopectin content — a starch fraction that gelatinizes and releases as viscous surface starch during slow cooking, giving risotto its characteristic creaminess. For this reason arborio is deliberately not rinsed before cooking (unlike basmati or jasmine): the surface starch is a feature, not a contaminant.\n\nThe measurement data splits into two clusters. US-grown arborio-style brands (Lundberg, RiceSelect, Signature Select, H-E-B) show 45-47 g per 1/4-cup serving, extrapolating to 180-188 g per cup. Italian imports (DeLallo, Village Harvest) show 52-53 g per 1/4-cup, extrapolating to 208-212 g per cup. USDA's SR Legacy \"Rice, white, medium-grain, raw, unenriched\" (FDC 169760, formerly NDB 20450) sits between them at 206 g per metric cup (approximately 195 g per US cup, density 0.824 g/mL). An additional aqua-calc branded record (UPC 085239406663) matches USDA at 211 g per metric cup (200 g per US cup).\n\nThe US-vs-Italian split appears to be genuine product identity variance rather than measurement noise alone. US-grown \"arborio-style\" rice from California, Louisiana, and Texas may be a US medium-grain cultivar (Calrose type or similar) grown under different climate and processing conditions than the true arborio landrace cultivated in northern Italy's Po Valley. FDA nutrition-label rounding rules explain some of the spread — a declared 45 g quarter-cup could actually weigh 43-47 g — but the 8 g gap between Lundberg's 45 g and Village Harvest's 53 g exceeds what rounding alone accounts for. Grain size and moisture content at packaging both plausibly contribute.\n\nPhysically, arborio is denser than long-grain white rice (~185 g/cup per USDA) because its short, plump grains nest into cup volume with less inter-grain void space. Longer grains sit at oblique angles and leave more air gaps; shorter grains pack more efficiently. Arborio's density falls between long-grain white rice and true short-grain sushi rice (~215-225 g/cup per Japanese-cup measurements). Sushi rice grains are even shorter and stubbier than arborio, packing tighter still.\n\nFor validation and internal consistency, this entry withholds a single figure and publishes the observed range 180-212 g per cup. The 17.8% spread exceeds the 10% milled-category tolerance because two distinct commercial clusters exist, both anchored by primary producer labels. King Arthur's ingredient weight chart is silent on arborio — no correction opportunity here.\n\nPractical guidance: for risotto and other volume-scaled recipes, weigh arborio rather than measure by cup. If cups are all that is available, ~200 g/cup is a reasonable central default; recipes written around US brands may skew closer to 180 g, Italian recipe imports closer to 210 g. A common risotto ratio is 1 cup dry rice for two servings (roughly 60 g per person), and at these small scales the cup approximation is close enough for practical cooking. Larger scales — commercial batches, arancini, timballo, or restaurant-portion multiplication — reward the scale." }, { "id": "arrowroot-starch", "schema_version": 3, "name": "Arrowroot Starch", "synonyms": [ "arrowroot", "arrowroot flour", "arrowroot powder", "arrowroot starch" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": null, "range_min": 0.5072, "range_max": 0.5411, "withheld": true, "withheld_reason": "Producer labels diverge (Anthony's 120 g/cup vs Bob's Red Mill and USDA 128 g/cup) due to FDA RACC labeling convention (30 g serving vs measured 32 g). Publishing as a range to reflect the actual commercial variance a home baker will encounter.", "sources": [ { "name": "USDA FoodData Central (Arrowroot Flour, FDC ID 170684)", "ref": "USDA lists 1 cup of arrowroot flour at 128 g. The entry derives from Standard Release database (NDB 20003) and reflects measured density of the pure starch. This matches Bob's Red Mill labeled serving weight.", "fdc_id": 170684, "density_g_per_ml": 0.5411 }, { "name": "Bob's Red Mill Arrowroot Starch/Flour label", "ref": "Nutrition Facts panel states 1/4 cup = 32 g, which computes to 128 g/cup. Bob's Red Mill packages the product as 'Arrowroot Starch/Flour' — the same product marketed under both names. Matches USDA measured value.", "density_g_per_ml": 0.5411 }, { "name": "Anthony's Goods Premium Arrowroot Flour label", "ref": "Nutrition Facts panel states 1/4 cup = 30 g, which computes to 120 g/cup. This lower figure aligns with the FDA Reference Amount Customarily Consumed (RACC) baseline of 30 g used for flour and starch category labeling, suggesting the label reflects RACC rounding rather than measured density.", "density_g_per_ml": 0.5072 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "TL;DR: Arrowroot starch weighs 120–128 grams per US cup depending on producer. Bob's Red Mill and USDA both measure it at 128 g/cup; Anthony's labels it at 120 g/cup, reflecting FDA RACC-rounded serving conventions rather than measured density.\n\nArrowroot starch (also sold as arrowroot flour or arrowroot powder — all three names refer to the same product) is a pure starch extracted from the root of Maranta arundinacea, a tropical tuber. Unlike wheat flour, it contains no protein, no fiber, and no bran, which is why its density is dominated entirely by the packing behavior of fine starch granules.\n\nThe producer label variance is a small but real quirk. FDA labeling regulations set a Reference Amount Customarily Consumed (RACC) of 30 grams for the flour and starch category, and manufacturers can choose to anchor their per-serving weight either to the RACC baseline or to the measured density of their specific product. Anthony's Goods uses 30 g per quarter-cup (yielding 120 g/cup); Bob's Red Mill uses 32 g per quarter-cup (yielding 128 g/cup), matching what USDA's Standard Release database records for arrowroot flour. Neither is technically wrong — Anthony's label is legal and reflects the regulatory serving size, while Bob's label reflects a slightly more literal density measurement. The 6.7% gap between them is comfortably within the tolerance a home baker should expect from any powdered starch scooped from a bag.\n\nWhat this means in practice: for most cooking and baking applications, treating arrowroot as approximately 125 g/cup is more than accurate enough. The gap between 120 and 128 grams is smaller than the variance you would introduce by sifting versus not sifting, or by scooping versus spooning into the measuring cup.\n\nWhere it does matter is in arrowroot's role as a thickener. Arrowroot is significantly more powerful than cornstarch at low temperatures, and the ratio of starch to liquid controls the final texture with unusual precision. The standard ratio for a medium sauce is 1 tablespoon (roughly 8 g) of arrowroot per cup of liquid; 1.5 tablespoons yields a gravy consistency; 2 tablespoons produces a firm gel. A measurement error of even 4–5 grams per tablespoon — easily introduced by scooping damp or packed starch — can shift a sauce from medium-bodied to over-firm, and unlike a flour-thickened sauce, an over-thickened arrowroot sauce cannot be successfully thinned without collapsing the gel.\n\nFor accuracy in baking and precise thickening work, the recommendation is straightforward: weigh it. A kitchen scale eliminates producer label ambiguity entirely, and at roughly $15 for a decent unit, it pays for itself the first time you avoid ruining a batch of pastry cream. Failing that, spoon the starch into the measuring cup and level with a straight edge rather than scooping directly from the bag — the scooping motion packs the starch and can add 10–15% to the weight." }, { "id": "baking-powder", "name": "Baking powder", "aliases": [ "raising powder", "leavening powder", "double-acting baking powder" ], "category": "milled", "schema_version": 3, "confidence": "low", "default_state": "standard", "states": [ { "id": "standard", "label": "Standard", "density_g_per_ml": null, "range_min": 0.8116, "range_max": 0.9333, "withheld": true, "withheld_reason": "Sources disagree by 13% (KA 0.8116 g/mL vs USDA 0.9333 g/mL), over the 10% milled category tolerance. USDA's figure is for one specific formulation (SAS-phosphate double-acting); other formulations may weigh differently. Published as a range.", "verified": "2026-09-16", "last_reviewed": "2026-09-16", "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 172803 (Leavening agents, baking powder, double-acting, sodium aluminum sulfate). 1 tsp = 4.6 g published directly, extrapolates to 220.8 g per cup.", "density_g_per_ml": 0.9333 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart. 1 tsp = 4 g (rounded to the nearest gram), extrapolates to 192 g per cup. King Arthur does not specify formulation.", "density_g_per_ml": 0.8116 } ] } ], "yields": [], "notes": "Like baking soda, baking powder is almost always measured by the teaspoon rather than the cup, and the sources publish teaspoon figures that we extrapolate up. Unlike baking soda, baking powder is not a single substance but a mixture: sodium bicarbonate plus one or more acidic agents, typically with a starch buffer to prevent premature reaction. Different formulations have different densities. This entry describes the general behaviour rather than any specific product.\n\nUSDA FoodData Central publishes 1 teaspoon = 4.6 grams for the sodium aluminum sulfate double-acting formulation (FDC 172803, Leavening agents, baking powder, double-acting, sodium aluminum sulfate). This is the composition most commonly sold in supermarkets under names like Clabber Girl and Calumet. It extrapolates to 220.8 grams per cup and a bulk density of 0.9333 grams per millilitre.\n\nKing Arthur's chart publishes 1 teaspoon = 4 grams without naming a formulation. That extrapolates to 192 grams per cup and a bulk density of 0.8116 grams per millilitre. King Arthur publishes only to the whole gram, so 4 grams rounded implies a real value between 3.5 and 4.5 grams per teaspoon.\n\nThe 13 percent spread between the two figures is over the 10 percent tolerance for our milled category, so we publish the range rather than a single number. The cup range is 192 to 221 grams.\n\nDifferent commercial baking powders can weigh differently because the acid component and the amount of starch buffer differ. Rumford and Bob's Red Mill are aluminum-free, using calcium acid pyrophosphate or monocalcium phosphate instead of sodium aluminum sulfate. USDA has separate entries for the straight-phosphate and low-sodium formulations, though neither publishes a teaspoon weight in the same detail. For a home baker who knows their brand, weighing an actual teaspoon of that specific product is more accurate than either source figure.\n\nBaking powder should not be confused with baking soda. Baking soda is pure sodium bicarbonate; baking powder contains it as one component alongside acids. A recipe calling for baking powder cannot substitute the same weight of baking soda without adding an acid, and the reverse substitution over-leavens because baking powder contains only a fraction of the sodium bicarbonate a recipe expects. The two entries on this site are separate for that reason.\n\nThe Food Chemicals Codex covers the individual chemical components of baking powder (sodium bicarbonate, monocalcium phosphate, sodium aluminum sulfate) but does not publish a density for the mixture as a food product.\n\nThe practical implication of the source disagreement is small for recipes calling for teaspoons of baking powder. It becomes meaningful only when a recipe specifies baking powder by cup or by weight, or when a recipe scales up from small quantities into larger ones. In those cases, knowing which source the recipe used matters.\n\nThe category here is 'milled' — a fine powder that clumps and bridges, with the same 10 percent tolerance we apply to cocoa, cornstarch and almond flour.", "last_reviewed": "2026-09-16" }, { "id": "baking-soda", "name": "Baking soda", "aliases": [ "sodium bicarbonate", "bicarbonate of soda", "bicarb" ], "category": "milled", "schema_version": 3, "confidence": "low", "default_state": "standard", "states": [ { "id": "standard", "label": "Standard", "density_g_per_ml": null, "range_min": 0.9333, "range_max": 1.2174, "withheld": true, "withheld_reason": "Sources disagree by 30% (USDA 0.9333 g/mL vs KA 1.2174 g/mL). Both physically plausible for baking soda under different packing conditions. Published as a range rather than a single figure.", "verified": "2026-09-16", "last_reviewed": "2026-09-16", "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 175040 (Leavening agents, baking soda). 1 tsp = 4.6 g published directly, extrapolates to 220.8 g per cup.", "density_g_per_ml": 0.9333 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart. 1/2 tsp = 3 g (rounded to the nearest gram), extrapolates to 6 g per tsp and 288 g per cup.", "density_g_per_ml": 1.2174 } ] } ], "yields": [], "notes": "Baking soda is unusual on this site in that almost nobody measures it by the cup. The typical recipe calls for half a teaspoon or one teaspoon at a time, and the small amount means small errors do not matter much for the final product. Both of our sources publish figures for the teaspoon rather than the cup, and the cup figure below is extrapolated from the teaspoon.\n\nUSDA FoodData Central publishes 1 teaspoon = 4.6 grams (FDC 175040, Leavening agents, baking soda), which extrapolates to 220.8 grams per cup and a bulk density of 0.9333 grams per millilitre.\n\nKing Arthur's chart publishes 1/2 teaspoon = 3 grams, which extrapolates to 6 grams per teaspoon, 288 grams per cup, and a bulk density of 1.2174 grams per millilitre. King Arthur publishes only to the whole gram, so 3 grams rounded implies a real value between 2.5 and 3.5 grams per half teaspoon.\n\nThe two figures are both physically plausible. Baking soda's bulk density varies with how tightly it is packed: loose or aerated is around 0.7 g/mL, a regular pour is around 0.9-1.0 g/mL, and tapped or compacted approaches 1.2 g/mL. Sodium bicarbonate's crystalline density is 2.20 g/mL, so anything up to that is theoretically possible with enough compaction. Our two sources appear to have measured under different conditions — USDA at a regular pour, King Arthur at something closer to a tapped or scooped measurement.\n\nBecause neither source names its method and the spread is 30 percent, we publish the range rather than a single figure. The teaspoon range is 4.6 to 6.0 grams; the cup range is 221 to 288 grams.\n\nBaking soda is sodium bicarbonate (NaHCO3), and should not be confused with two neighbouring products. Baking powder is a mixture that contains sodium bicarbonate plus an acid and often a starch buffer, and weighs differently per cup because of the added components. Washing soda (sodium carbonate, Na2CO3) is a related substance used for cleaning and food processing, not for baking. Neither is interchangeable with baking soda in a recipe.\n\nNeither the United States Pharmacopeia nor the Food Chemicals Codex publishes bulk density for sodium bicarbonate; both address purity and particle-size specifications rather than volume measurement.\n\nFor a home baker, the practical implication of the source disagreement is small. Recipes calling for baking soda in teaspoons are already tolerant to a factor-of-two error before the leavening turns visibly wrong. The disagreement matters only when a recipe specifies baking soda by the cup or by weight, in which case knowing which source the recipe used becomes essential.\n\nThe category here is 'milled' rather than 'sugar' or 'salt' because baking soda's measurement behaviour — a fine powder that clumps and bridges — matches the milled category we already use for cocoa powder, cornstarch, and almond flour." }, { "id": "barley-flakes", "schema_version": 3, "name": "Barley Flakes", "synonyms": [ "barley flakes", "rolled barley flakes", "rolled barley", "flaked barley", "barley cereal flakes" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": null, "range_min": 0.3382, "range_max": 0.4142, "withheld": true, "withheld_reason": "Retail producer labels span 80-98 g/cup across four brands, a 22.5% spread reflecting real roll-thickness variance similar to rolled oats (quick vs old-fashioned vs extra-thick). Central cluster at 88-92 g/cup (King Arthur and Bob's Red Mill converge within 4.5%), with Shiloh Farms denser at 98 g/cup and Natural Grocers lighter at 80 g/cup. No single figure captures the whole product family; the roll thickness of the specific brand in hand matters more than the general category number.", "sources": [ { "name": "King Arthur Baking Company — Ingredient Weight Chart", "ref": "1/2 cup = 1 5/8 oz = 46 g, extrapolating to 92 g/cup at 0.389 g/mL. Chart figure for a mid-thickness rolled barley flake. Sits at the top of the central cluster with Bob's Red Mill.", "density_g_per_ml": 0.3889 }, { "name": "Bob's Red Mill Rolled Barley Flakes (product label)", "ref": "Label serving: 1/4 cup dry = 22 g = 80 kcal (18 g carb, 3 g protein, 0.5 g fat). Extrapolates to 88 g/cup at 0.372 g/mL. Bob's Red Mill is one of the two dominant home-baker retail brands for barley flakes alongside Arrowhead Mills. Ingredient statement: whole grain rolled barley only.", "density_g_per_ml": 0.372 }, { "name": "Shiloh Farms Barley Flakes (product label)", "ref": "Label serving: 1/2 cup dry = 49 g = 180 kcal (37 g carb, 5 g protein, 1 g fat). Extrapolates to 98 g/cup at 0.414 g/mL. Represents the coarser/thicker roll end of the retail range — the specialty natural-foods brand tends to produce heavier flakes that pack denser.", "density_g_per_ml": 0.4142 }, { "name": "Natural Grocers Rolled Barley Flakes (product label)", "ref": "Label serving: 1/2 cup = 40 g = 140 kcal (29 g carb, 5 g protein, 1 g fat). Extrapolates to 80 g/cup at 0.338 g/mL. Represents the finer/thinner roll end of the retail range — Natural Grocers house brand tends to produce quicker-cooking lighter flakes.", "density_g_per_ml": 0.3382 }, { "name": "GoBarley / Whole Grains Council — barley flake reference", "ref": "Trade association reference confirming the barley product family: hulled or hulless whole grain barley kernels are steamed, rolled, and dried to produce flakes. Distinct from pearl barley (bran polished off, refined) and barley grits (broken kernel pieces). Barley flakes qualify for the FDA and Health Canada beta-glucan cholesterol claim (at least 1 g beta-glucan per serving from whole-grain barley).", "density_g_per_ml": null } ], "verified": "2026-09-22", "last_reviewed": "2026-09-22" } ], "yields": [], "notes": "TL;DR: 80-98 g/cup (0.34-0.41 g/mL). Retail producer labels span a 22% range across four brands; the central cluster at 88-92 g/cup (King Arthur and Bob's Red Mill within 4.5% of each other) is the working figure most home-baker recipes assume, with Shiloh Farms denser at 98 and Natural Grocers lighter at 80. The spread reflects real roll-thickness variance in the same way rolled oats vary between quick, old-fashioned, and extra-thick cuts.\n\nBarley flakes are whole barley kernels — hulled or hulless (the inedible outer hull removed but the bran retained) — that have been steamed to soften the grain, passed through steel rollers to flatten them into flakes, and dried. The process is identical to rolled oats and produces a product that behaves the same way on the scoop, on the stove, and in the oven. The finished flake is roughly 89% carbohydrate by weight (with 5-6 grams of the beta-glucan soluble fiber that earned barley its FDA and Health Canada cholesterol health claims), 14% protein, and 5% fat, packing at a bulk density of 0.34-0.41 g/mL depending on how thick the miller set the roll.\n\nDensity data forms a central cluster and two outliers. King Arthur's Ingredient Weight Chart lists 1/2 cup = 46 g, extrapolating to 92 g/cup at 0.389 g/mL. Bob's Red Mill Rolled Barley Flakes lists 1/4 cup = 22 g on the label, extrapolating to 88 g/cup at 0.372 g/mL. These two dominant home-baker brands agree within 4.5%, defining the working figure most baking recipes assume when they call for barley flakes unqualified. Shiloh Farms sits denser at 98 g/cup (1/2 cup = 49 g), typical of a coarser/thicker roll; Natural Grocers sits lighter at 80 g/cup (1/2 cup = 40 g), typical of a finer/quicker-cooking roll. The full 80-98 range is honest publication for products actually sold under this name.\n\nBarley comes in five commercial forms and it is important not to confuse them. Barley flakes (this entry) are whole barley kernels rolled flat, a whole grain product. Barley flour (already in this database) is ground barley, either from whole hulled kernels or from pearl barley, and packs at a much higher density typical of the flour cluster. Pearl barley is whole barley polished to remove the bran (not a whole grain, faster cooking, common in soups). Hulled barley is the whole grain with only the inedible hull removed, the least processed form. Barley grits are cracked or broken kernel pieces sold as a hot cereal or side dish. Of these five, flakes, hulled, pearl, and grits are still recognizable as whole or partial kernels; only barley flour is milled to powder.\n\nWithin this database, barley flakes at 80-98 g/cup sits in the same density band as rolled oats (KA chart figure roughly 85 g/cup), which is expected since both are steamed-and-rolled whole cereal grain kernels of similar bulk density. Wheat berries (whole intact kernels, unrolled) pack denser at around 180-190 g/cup because the intact grain has no air gaps between flakes. In practical baking, barley flakes substitute 1:1 by weight for rolled oats in muesli, granola, cookies, and bread toppings, delivering a slightly nuttier flavor and more chew. In hot cereal, they cook in 10-15 minutes to a creamy porridge with more body than oatmeal from the higher beta-glucan content. As a bread ingredient, adding 5-15% barley flakes to a wheat dough produces the classic Scottish-Nordic multigrain loaf character with darker crust color and hearty texture. Complete substitution for rolled oats works in almost every recipe; the flavor difference is noticeable but not disruptive." }, { "id": "barley-flour", "schema_version": 3, "name": "Barley flour", "synonyms": [ "whole grain barley flour", "stone-ground barley flour", "sifted barley flour", "barley meal" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, spooned into the cup", "density_g_per_ml": null, "range_min": 0.3593, "range_max": 0.6256, "withheld": true, "withheld_reason": "Two authoritative sources disagree by 74%, the largest gap for any ingredient on this site. The variation reflects genuinely different physical products sold under the same name: fine sifted barley flour versus coarser barley meal. This entry publishes the range rather than picking one figure.", "sources": [ { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Barley flour', 1 cup = 85 g. Density 0.3593 g/mL. Represents a fine, sifted barley flour spec.", "density_g_per_ml": 0.3593 }, { "name": "USDA FoodData Central", "ref": "FDC 169739, Barley flour or meal (SR Legacy). Published: 1 cup = 511 kcal, 100 g = 345 kcal. Back-calculating: cup weight = (511/345) × 100 = 148 g. Density 0.6256 g/mL. The record explicitly combines flour and meal grinds under one entry.", "density_g_per_ml": 0.6256 } ], "verified": "2026-09-20", "last_reviewed": "2026-09-20" } ], "yields": [], "notes": "Two authoritative sources disagree by 74%, the largest gap for any ingredient currently on this site. King Arthur's Ingredient Weight Chart publishes 1 cup at 85 g, implying a density of 0.3593 g/mL. USDA FoodData Central SR Legacy (FDC 169739, Barley flour or meal) publishes 511 kcal per cup and 345 kcal per 100 g, back-calculating to a cup weight of 148 g and density of 0.6256 g/mL.\n\nThe gap is not a measurement error in either source. The USDA record's own name reveals the reason: 'Barley flour or meal' combines two physically distinct products under one entry. Barley meal is a coarser grind, closer in texture to cornmeal than to wheat flour, and packs into a cup with substantially less air space than fine flour. King Arthur's chart specifies barley flour, and its 85 g figure is consistent with a fine, sifted flour spec (their own retail barley flour product is at the fine end of the market). USDA's average combines fine and coarse together and lands near the midpoint, which explains the near-doubling relative to King Arthur.\n\nThis is exactly the situation that motivates the site's range-publishing approach. A single published figure for barley flour would be misleading for anyone whose bag is at the other end of the grind spectrum. A shopper buying stone-ground whole-grain barley flour will get a cup weight closer to USDA's 148 g; a shopper buying finely sifted white barley flour will get closer to King Arthur's 85 g. Both are legitimately labeled 'barley flour' in retail.\n\nHome bakers using barley flour in quick breads, Scottish bannocks, Nordic flatbreads or malt-flavored cookies should weigh rather than measure by volume, and be aware that substituting one brand for another may require adjusting either the flour volume or the liquid to compensate. Barley flour contains some gluten (about 5-8% protein depending on variety), but not enough of the specific gluten proteins needed for bread structure. It is used as a partial substitute for wheat flour, typically no more than 25 to 50 percent of the total flour weight in yeasted breads.\n\nBarley flour sits in the milled category alongside all other flours. The 10% category tolerance applies here, and the observed 74% gap between authoritative sources far exceeds it, making the range publish essential rather than optional. This is the site's clearest current example of an ingredient where single-figure conversion charts on other websites are actively misleading.\n\nRelated products: barley malt flour is a distinct product with an even higher density (approximately 162 g per cup per USDA), used in commercial bread baking as an enzyme source and mild sweetener. Pearl barley is the whole grain form with different measurement conventions. Barley grits and cracked barley are further intermediate products between whole grain and flour. Roasted barley flour is used in some traditional cereal preparations. None of these are covered by this entry.\n\nNo standards body publishes a bulk density for barley flour. Codex Alimentarius standards for barley (CXS 201-1995) cover moisture content, defect tolerances, foreign matter limits and grade rather than physical density. Two authoritative sources with genuinely different product measurements, so this entry is held at low confidence and range published until either a third independent source with a specified grind resolves the split or USDA separates its 'flour or meal' entry into distinct records.", "last_reviewed": "2026-09-20" }, { "id": "basmati-rice", "schema_version": 3, "name": "Basmati Rice", "synonyms": [ "basmati", "white basmati", "long grain basmati", "indian basmati", "pakistani basmati", "aromatic long grain rice" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, raw uncooked, spooned and leveled", "density_g_per_ml": 0.7608, "sources": [ { "name": "USDA SR Legacy", "ref": "Rice, white, long-grain, regular, raw, unenriched: 1 cup = 185 g. Generic long-grain reference; basmati is an aromatic subtype with slightly longer grains and typically lower moisture from post-harvest aging, both of which push cup density ~3% below the generic long-grain figure.", "fdc_id": 169756, "density_g_per_ml": 0.7819 }, { "name": "Tilda Basmati Rice", "ref": "Nutrition label: serving size 1/4 cup dry (45 g). Converts to 180 g/cup exactly. Indian-origin premium basmati, aged.", "density_g_per_ml": 0.7608 }, { "name": "Royal Authentic Basmati Rice", "ref": "Nutrition label: serving size 1/4 cup dry (45 g). Converts to 180 g/cup exactly. Indian-origin basmati.", "density_g_per_ml": 0.7608 }, { "name": "Mahatma Basmati Rice", "ref": "Nutrition label: serving size 1/4 cup (45 g) dry. Converts to 180 g/cup exactly. Widely distributed US retail brand.", "density_g_per_ml": 0.7608 }, { "name": "Lundberg California White Basmati Rice", "ref": "Nutrition label: serving size 1/4 cup dry (45 g). Converts to 180 g/cup exactly. California-grown basmati variety.", "density_g_per_ml": 0.7608 }, { "name": "USDA Branded (Whole Foods 365 Indian Basmati Rice)", "ref": "UPC 085239053348. 190 g/metric cup → 180 g/US cup. Matches direct producer-label cluster exactly.", "density_g_per_ml": 0.7608 }, { "name": "USDA Branded (Great Value White Basmati Rice)", "ref": "UPC 015400132305. 207 g/metric cup → 196 g/US cup. 8.9% above the producer cluster; within milled tolerance but notably higher than major-brand convergence.", "density_g_per_ml": 0.8285 }, { "name": "USDA Branded (365 Basmati Rice variant)", "ref": "UPC 085239406649. 220 g/metric cup → 208 g/US cup. 15.6% above producer cluster.", "density_g_per_ml": 0.8792, "rejected": true, "rejection_reason": "208 g/cup is 15.6% above the producer-convergent cluster of 180 g/cup (Tilda, Royal, Mahatma, Lundberg, and Whole Foods 365 UPC 085239053348 all at 180). Exceeds milled 10% tolerance. Likely a distinct product identity (parboiled/sella/fine-cracked grade) mislabeled generically as basmati, or a serving-size error on the source label." }, { "name": "USDA Branded (Kroger Basmati Rice)", "ref": "UPC 011110840530. 150 g/metric cup → 142 g/US cup. 21% below producer cluster.", "density_g_per_ml": 0.6002, "rejected": true, "rejection_reason": "142 g/cup is 21% below the producer-convergent cluster of 180 g/cup. Exceeds milled 10% tolerance by a wide margin. Serving-convention appears wrong (possibly cooked-rice weight labeled as dry, or 1/3-cup weight labeled as 1/4-cup); no plausible physical mechanism puts genuine dry basmati this low." } ], "verified": "2026-09-23", "last_reviewed": "2026-09-23" } ], "yields": [], "notes": "TL;DR: Basmati rice runs 180 grams per cup dry across major producer labels, with USDA's generic long-grain figure of 185 sitting just above; the small gap reflects basmati's longer, slimmer grains and lower moisture from post-harvest aging.\n\nBasmati is an aromatic long-grain rice from the Indian subcontinent, distinguished by elongated grains (typically 6.6-8.4 mm before cooking, elongating to two or more times that length when cooked) and a pandan-like aroma from 2-acetyl-1-pyrroline. Producer nutrition labels converge tightly on 180 g/cup dry: Tilda, Royal, Mahatma, and Lundberg all publish 45 g per 1/4 cup, which is genuine multi-brand convergence at exactly the same figure across production in India, Pakistan, and California. The USDA Global Branded record for Whole Foods 365 Indian Basmati (UPC 085239053348) lands at the same 180 g/cup, matching the direct-label cluster.\n\nUSDA Standard Reference for generic raw long-grain white rice (FDC 169756) lists 185 g/cup, 2.8% above the basmati cluster. That gap has two structural explanations. First, traditional basmati is aged one to two years before milling to reduce moisture from the ~14% typical of freshly milled long-grain to ~11-12% — the same volume of aged basmati contains less water and therefore weighs slightly less. Second, basmati grains have a higher length-to-width ratio (roughly 4:1) than generic long-grain (roughly 3:1), which produces marginally more inter-grain void space when scooped into a cup. Both effects push in the same direction and their combined magnitude accounts for the observed 3% gap.\n\nUSDA Branded records show wider spread than direct producer labels. The Great Value White Basmati (UPC 015400132305) sits at 196 g/cup — 8.9% above the cluster, within milled tolerance but notable. Two Branded UPCs fall outside tolerance and are excluded from the published figure: a 365 basmati variant (UPC 085239406649) at 208 g/cup and a Kroger basmati (UPC 011110840530) at 142 g/cup. The 208 figure is 15.6% above cluster and may reflect a different product identity (parboiled, sella, or a fine-cracked grade) sold under a generic basmati label. The 142 figure is 21% below cluster and appears to be either a serving-convention error or a distinct product mislabeled under the basmati name; no plausible physical mechanism puts genuine dry basmati that low.\n\nKing Arthur Baking does not publish basmati rice, or any specific rice variety other than a single cooked-rice entry. Cooked and dry are different foods — hydrated grains have absorbed water — so no conversion between the two is possible without a source telling you which was measured. There is no KA correction opportunity here, just an absence to fill.\n\nFor practical use, treat basmati as 180 g/cup dry within the major-producer set (Tilda, Royal, Mahatma, Lundberg). When scaling by weight, this figure holds within the 5% variance most home baking tolerates. Cook basmati by absorption at a 1:1.5 rice-to-water ratio as most producer instructions specify, rather than the 1:2 that generic long-grain calls for — basmati absorbs less water because the drier aged grain has less bound water competing with the added liquid. If you rinse before cooking (recommended for authentic Indian preparation), the dry weight applies before rinsing; water clinging to rinsed grains adds to the cook water, not to the grain mass." }, { "id": "black-rice", "schema_version": 3, "name": "Black Rice", "synonyms": [ "black rice", "forbidden rice", "purple rice", "chinese black rice", "emperor's rice", "heirloom black rice" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, dry raw grains, spooned and leveled", "density_g_per_ml": 0.7608, "sources": [ { "name": "Lotus Foods Black Rice label", "ref": "Serving size 1/3 cup uncooked = 60 g → 180 g/cup. Lotus Foods is the dominant US-market black rice brand under the \"Forbidden Rice\" product line.", "density_g_per_ml": 0.7608 }, { "name": "Rice Select Black Rice label", "ref": "Serving size 1/4 cup = 45 g → 180 g/cup. Matches Lotus Foods label exactly; two independent producer confirmations.", "density_g_per_ml": 0.7608 }, { "name": "USDA Branded (Black Rice)", "ref": "UPC 072769004209. 190 g/metric cup → 180 g/US cup. Independent USDA GBFD measurement confirming the producer-label cluster within precision.", "density_g_per_ml": 0.76 }, { "name": "Village Harvest Black Rice label", "ref": "Serving size 1/4 cup = 48 g → 192 g/cup. 6.7% above the 180 g/cup cluster; kept as within-range, consistent with a plumper or longer-kernel cultivar variant.", "density_g_per_ml": 0.8115 }, { "name": "USDA Branded (Black Rice, unspecified brand)", "ref": "UPC 897034002281. 182 g/metric cup → 172 g/US cup. 4.4% below the branded cluster of 180 g/cup.", "density_g_per_ml": 0.728, "rejected": true, "rejection_reason": "Single unbranded USDA GBFD record 4.4% below the tight producer-and-USDA cluster of 180 g/cup. Could reflect a shorter-kernel Thai or Indonesian cultivar, but with no brand attribution to verify and no supporting sources at this density, excluded as low outlier. The branded cluster of Lotus Foods, Rice Select, and USDA GBFD UPC 072769004209 all converging at 180 g/cup is the more reliable anchor." }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "Silent on black rice. KA lists cooked brown rice at 170 g/cup and covers a few other rice forms but does not include black rice in any form. As with the paired brown-rice entry, cooked-rice figures cannot cross-reference dry-form density.", "density_g_per_ml": null } ], "verified": "2026-09-23", "last_reviewed": "2026-09-23" } ], "yields": [], "notes": "TL;DR: Black rice, also known as forbidden rice or purple rice, publishes at 180 grams per cup — matching Lotus Foods and Rice Select producer labels exactly and confirmed by independent USDA branded record UPC 072769004209 at 180 g/US cup. Slightly lighter than brown rice (185 g/cup) despite similar whole-grain structure, black rice fits cleanly into the whole-grain rice family band around 180-195 g/cup.\n\nBlack rice is a heritage variety of Oryza sativa native to China and Southeast Asia, distinguished by its deep purple-black bran layer rich in anthocyanins — the same pigment family that colors blueberries and purple cabbage. Historical marketing calls it \"forbidden rice\" based on claims that it was once reserved for Chinese emperors due to its rarity and nutritional density. Common commercial varieties include Chinese heirloom black rice (medium grain, sold widely by Lotus Foods), Thai black jasmine (long grain, more aromatic), and Indonesian black glutinous rice (short grain, sticky when cooked). The kernels turn deep purple when cooked as anthocyanins leach into the cooking water.\n\nBlack rice publishes cleanly at 180 g/cup because three independent sources converge exactly at that value: Lotus Foods' 1/3 cup uncooked = 60 g label, Rice Select's 1/4 cup = 45 g label, and USDA Global Branded Food Products Database UPC 072769004209 measurement at 190 g/metric cup (180 g/US cup). Village Harvest sits slightly heavier at 192 g/cup (6.7% above cluster), which is within milled tolerance and consistent with a plumper kernel variant — the parallel to the basmati-rice entry where Great Value's 196 g/cup was kept as within-range at +8.9%. One additional unbranded USDA GBFD record (UPC 897034002281) at 172 g/cup sits 4.4% below the branded cluster and is treated as a low outlier without corroborating sources, possibly reflecting a shorter-kernel Southeast Asian variety.\n\nPhysical reasoning explains why black rice lands at the low end of the whole-grain rice family. Rice kernel bulk density depends on kernel length-to-diameter ratio, moisture content, and bran integrity. Black rice kernels are typically slightly shorter and stubbier than long-grain brown or white rice — the black-pigmented bran layer accompanies medium-grain kernel dimensions in most commercial varieties. This gives less efficient inter-kernel packing (more void fraction) than the long-grain brown rice at 185 g/cup. The anthocyanin-rich bran itself is thin and adds negligible mass — the same reasoning that explains why brown rice (with intact plain bran) matches white rice density: bran is roughly 8% of kernel mass and doesn't materially change the per-cup weight.\n\nKing Arthur Baking is silent on black rice in any form. KA's chart is baking-focused and lists cooked brown rice (at 170 g/cup) but no uncooked rice varieties beyond generic long-grain. As with the paired brown-rice entry, cooked-rice figures cannot cross-reference dry-form density because rehydrated grains have absorbed roughly 2-3x their dry weight in water. No KA correction opportunity exists here; the absence is worth noting for bakers looking for guidance on this less-common grain.\n\nBlack rice sits at 180 g/cup in the whole-grain rice family band that includes brown rice at 185, white rice at similar density, and basmati at 180. Brown rice and white rice share nearly identical dry density because the bran layer contributes minimal mass; black rice runs slightly lighter due to shorter-kernel dimensions rather than bran differences. Sweet rice (glutinous), stored separately in the database, publishes differently because its shorter, more spherical kernels pack more densely.\n\nFor practical use, treat black rice as 180 g/cup for recipe scaling. A tablespoon runs about 11 grams. Black rice takes 30-45 minutes to cook (roughly the same as brown rice) at a 1:1.75 rice-to-water ratio; the cooked yield is roughly 2.5-3x the dry weight. When precision matters — for a black rice pudding where texture depends on precise cooking-water ratio, or for a nutritional macronutrient calculation — weigh by grams. For casual home cooking, cup measurements work fine within the 5-7% spread across commercial varieties. Black rice pairs well with coconut milk (Thai preparations), stir-fried vegetables (Chinese preparations), and warm spice-poached fruit (Indonesian desserts); its deep purple color and nutty aroma make it a distinctive substitute for brown rice in visually-forward plating." }, { "id": "blueberries-fresh", "schema_version": 3, "name": "Blueberries (fresh)", "synonyms": [ "fresh blueberries", "blueberries", "blueberries frozen", "frozen blueberries", "whole blueberries", "blueberries whole" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, whole loose in the cup", "density_g_per_ml": null, "range_min": 0.5918, "range_max": 0.7186, "withheld": true, "withheld_reason": "King Arthur publishes fresh or frozen blueberries as a 140-170 g/cup range, a 21% internal spread that alone exceeds the 10% milled tolerance. USDA's SR Legacy record sits at 148 g/cup, inside the KA range but closer to the lower end. Fresh whole small round berries vary meaningfully with cultivar size, ripeness, and fill method. This entry publishes the range rather than picking a single figure.", "sources": [ { "name": "USDA FoodData Central", "ref": "Blueberries, raw (SR Legacy, FDC ID 171711). Published: 1 cup = 148 g. Density 0.6255 g/mL. Also shown in the same record: 50 berries = 68 g, implying about 1.36 g per berry for a standard cultivated cup.", "density_g_per_ml": 0.6255 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Blueberries (fresh or frozen)', 1 cup (140 to 170 g/cup). KA itself publishes as a range rather than a single figure. Density envelope 0.5918-0.7186 g/mL.", "density_g_per_ml": null } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Blueberries are the first fresh berry on the site, and their density is a case study in why cup measurement fails for whole small round fruit. King Arthur publishes fresh or frozen blueberries at 140 to 170 grams per cup, a 21% spread the chart itself doesn't try to narrow. USDA's SR Legacy record (FDC ID 171711) sits at 148 grams per cup for raw blueberries, inside the KA range but near the lower end. The 148 figure implies a standard cultivated berry, about 1.36 grams each per USDA's own 50-berry portion, loose-filled without shaking. The 170 upper end likely reflects larger berries, denser packing, or a shaken cup that lets small round fruit settle deeper.\n\nThe physics is straightforward: blueberries are roughly 1 cm spheres that roll and settle. Fill a cup by scooping and air pockets are trapped between the spheres. Shake the cup and the berries reorganize, smaller ones sliding into the interstitial gaps between larger ones, and the whole population settling denser. Cultivar matters too. Wild lowbush blueberries are about half the size of cultivated highbush, and mixed-size populations pack denser than uniform ones because the small berries fill the gaps the large ones leave open. Water content of the berry itself doesn't move the density much because the water is inside each berry rather than in the space between them, but ripeness affects compressibility. Riper berries deform slightly under their own weight in the cup and pack denser than firm underripe ones.\n\nConversion sites publishing figures for fresh blueberries are all over the map. Values from 100 to 190 grams per cup appear across the top search results, with most sites not disclosing their measurement method or accounting for berry size. USDA's 148 and King Arthur's 140-170 range are the two authoritative anchors, and this entry publishes both without collapsing them to a single number that would misrepresent the physical variability.\n\nCategory assignment is milled: fresh whole small fruits behave like the fresh chunked fruits already on the site. Apple-slices sit at 109 g/cup and pineapple-diced at 165 g/cup, both solid water-containing pieces whose density is sensitive to fill method. The sugar category is reserved for small crystalline or particulate solids like sugars, salts, chocolate chips, and small dried fruits such as raisins and currants. Fresh blueberries have too much water content and too much fill-method sensitivity to belong there. Dried blueberries, coming later this session at 156 g/cup, will also be milled rather than sugar because they are larger and less crystalline than raisins.\n\nFrozen blueberries are grouped with fresh in the KA row and in practice behave similarly for measurement. Frozen berries are stiffer and don't compress in the cup, but their density measured as loose fill is close to fresh loose fill. USDA doesn't distinguish frozen from fresh in the standard 148 g/cup portion, which is why this entry's synonyms include both.\n\nThe range publish is required by the standards: KA's 21% internal range alone exceeds the 10% milled tolerance, and adding USDA at 148 doesn't narrow it. Publishing a single figure would misrepresent the physical variability. Bakers should weigh their berries when recipe accuracy matters. A recipe calling for 1 cup could reasonably use anywhere from 140 to 170 grams depending on cultivar and technique, and that 21% range in berry mass changes filling volume, moisture release during baking, and final texture.\n\nConfidence is low because sources genuinely disagree over tolerance, not because sourcing is weak. Both USDA and King Arthur are the primary authorities in this space, and both are cited transparently. The range is honest." }, { "id": "brazil-nuts", "schema_version": 3, "name": "Brazil nuts", "synonyms": [ "brazil nuts", "brazilnuts", "whole brazil nuts", "dried brazil nuts", "unblanched brazil nuts", "bertholletia excelsa" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard whole, spooned and leveled", "density_g_per_ml": null, "range_min": 0.5072, "range_max": 0.5621, "withheld": true, "withheld_reason": "USDA FoodData Central measures Brazil nuts at 133 g/cup (density 0.5621 g/mL) via a direct cup portion in the SR Legacy entry, confirmed by USDA FNNDS. Commercial retail brand labels (Sunshine Country, Basse, Nature to Go) cluster at 28-30 g per 1/4 cup, back-calculating to 120 g/cup (density 0.5072 g/mL). The 10.8% spread exceeds the 10% milled tolerance. The gap is not a measurement disagreement between labs — it reflects the FDA Reference Amount Customarily Consumed default of 1 oz per nut serving being applied to 1/4 cup labeling as if 1 oz equals 1/4 cup by volume. This entry publishes the range 120-133 g/cup to honestly represent both the USDA measurement anchor and the practical cup weight bakers encounter when using commercial-brand nutrition labels as a reference.", "sources": [ { "name": "USDA FoodData Central", "fdc_id": 170569, "ref": "FDC entry 170569 'Nuts, brazilnuts, dried, unblanched', Standard Release. Direct cup portion: 1 cup, whole = 133 g (density 0.5621 g/mL). Supporting per-kernel portion of 5 g suggests approximately 27 average kernels fit a spooned-and-leveled cup. USDA FNNDS entry 339423 confirms the same 133 g/cup figure. Default USDA serving is 1 oz (28.35 g) = 6 kernels, reflecting the FDA RACC standard for nuts.", "density_g_per_ml": 0.5621 }, { "name": "Multi-brand commercial Brazil nut cluster", "ref": "Retail nutrition labels from Sunshine Country (1/4 cup = 28 g), Basse Raw Brazil Nuts (1/4 cup = 30 g), and Nature to Go (1/4 cup = 30 g) cluster at 112-120 g/cup back-calculated. The uniform 28-30 g per 1/4 cup values reflect the FDA Reference Amount Customarily Consumed default of 1 oz per nut serving applied as if 1/4 cup equals 1 oz, rather than measured product density. Despite the RACC influence, three independent brands landing on the same figure is meaningful and represents the practical cup weight bakers encounter when using retail labels as a conversion reference.", "density_g_per_ml": 0.5072 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Brazil nuts publish as a range 120 to 133 grams per cup because two authoritative sources disagree by 10.8%, just over the 10% milled tolerance, and the disagreement reflects a documented labeling convention rather than one source being wrong. USDA FoodData Central entry 170569 (Nuts, brazilnuts, dried, unblanched) publishes a direct cup portion of 133 g/cup whole (density 0.5621 g/mL), with supporting per-kernel figure of 5 g suggesting approximately 27 kernels fit a spooned-and-leveled cup. USDA FNNDS entry 339423 confirms the same 133 g/cup figure. Retail brand labels from Sunshine Country, Basse Raw Brazil Nuts, and Nature to Go cluster at 28-30 grams per 1/4 cup, back-calculating to 112-120 g/cup — a value that reflects the FDA Reference Amount Customarily Consumed default of 1 oz per nut serving applied as if 1/4 cup equals 1 oz, rather than measured density.\n\nBrazil nuts (Bertholletia excelsa) are the tree seeds of the Amazonian Brazil nut tree, wild-harvested primarily in Bolivia, Brazil, and Peru. Unlike most commercially sold nuts, Brazil nuts are not cultivated at scale because the tree relies on specific orchid bee species for pollination and takes several decades to reach productive maturity, making plantation cultivation economically unfeasible. Nearly all Brazil nuts on the US market come from wild-harvested trees in Amazonian rainforest, giving Brazil nuts an unusually stable kernel size distribution across brands compared to more variable cultivated tree nuts like almonds or cashews.\n\nPhysical mechanism for the density range: Brazil nuts are among the largest commercial tree nuts, with individual kernels averaging 5 grams and measuring roughly 2.5 to 3 centimeters long. The irregular triangular-wedge shape creates significant inter-kernel air voids when packed into a measuring cup — approximately 27 kernels fit a spooned-and-leveled cup, with the remaining volume being air. USDA's 133 g/cup measurement reflects careful spoon-and-level measurement of intact whole kernels. Commercial labels at 120 g/cup reflect the FDA RACC labeling convention. Both figures describe genuine reference points bakers encounter, which is why the range spans them.\n\nCompared to other nuts on the site, Brazil nuts at 120-133 g/cup fit into the whole-nut density cluster: cashews whole at 113-137 g/cup (state variance from raw to roasted), whole unblanched almonds at 142 g/cup, and other similarly-sized tree nuts. Brazil nuts pack noticeably heavier than sliced almonds (86 g/cup at KA) and slivered almonds (114 g/cup at KA) because whole kernels have less surface area exposed to air per unit volume than cut pieces do. Brazil nuts also carry a distinctive nutritional signature: a single kernel provides more than the daily requirement for selenium, making Brazil nuts one of the few foods where portion control matters more for micronutrient dosage than for calories.\n\nCategory assignment is milled, matching all other whole and cut nuts on the site under the fatty-nut fibrous-plant-particulate definition.\n\nConfidence is low reflecting the 10.8% gap between USDA measurement and commercial label convention. For baking accuracy, weigh Brazil nuts rather than measuring by volume. If a recipe was developed against a USDA reference or a careful spoon-and-level measurement, use 133 g/cup. If a recipe was developed against a commercial brand label reading 1/4 cup = 28-30 g, use 120 g/cup. If in doubt, use 125 g/cup as a middle estimate. This entry represents a moat play for the site: King Arthur does not currently list Brazil nuts in its Ingredient Weight Chart, so no consumer baking authority publishes a direct cup weight, and no other cup-to-gram reference publishes the USDA versus commercial label gap for Brazil nuts with the physical explanation that the disagreement reflects FDA RACC labeling convention rather than a measurement error." }, { "id": "bread-crumbs", "schema_version": 3, "name": "Bread crumbs", "synonyms": [ "breadcrumbs", "dried breadcrumbs", "plain breadcrumbs", "Italian breadcrumbs", "seasoned breadcrumbs" ], "category": "milled", "default_state": "dried", "confidence": "medium", "states": [ { "id": "dried", "label": "Dried, plain, ground fine", "density_g_per_ml": 0.4565, "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 175003, SR Legacy, 1 undetermined cup = 108 g", "density_g_per_ml": 0.4565 }, { "name": "King Arthur Baking", "ref": "Ingredient Weight Chart, Breadcrumbs (dried), 1/4 cup = 28 g", "density_g_per_ml": 0.4734 } ], "verified": "2026-09-16", "last_reviewed": "2026-09-16" } ], "yields": [], "notes": "Sources agree within 3.6%, well inside the 10% tolerance for the milled category. USDA FDC 175003 (Bread crumbs, dry, grated, plain) gives a cup at 108 g (0.4565 g/ml). King Arthur's Ingredient Weight Chart lists dried breadcrumbs at 28 g per quarter cup, implying 112 g per cup or 0.4734 g/ml. This entry covers dried plain breadcrumbs, which are what most Western recipes mean when they call for breadcrumbs without further qualification: staler white bread ground and toasted to a fine, dry crumb, then either used plain or seasoned with herbs and cheese to become what supermarkets sell as Italian breadcrumbs. The seasoned versions are typically 5 to 10 percent heavier per cup due to the added dried herbs and grated cheese, but no independent source with method attribution was found to publish them separately. Two other breadcrumb products appear on King Arthur's chart with dramatically different cup weights, and are treated as separate ingredients rather than states of this one. Fresh breadcrumbs, made by tearing or briefly pulsing fresh soft bread rather than drying and grinding it, weigh 84 g per cup on the King Arthur chart (0.3551 g/ml). They are used in different applications than dried breadcrumbs (as a binder in meatballs and meatloaf, or as a topping that will absorb sauce during baking) and are usually made at home just before use, since they spoil in days rather than weeks. Panko, the Japanese-style breadcrumb, weighs only 50 g per cup on the King Arthur chart (0.2114 g/ml), less than half the density of Western dried breadcrumbs. Panko is made by baking bread with an electrical current rather than in an oven, which produces a crustless loaf that is then torn (rather than ground) into large, flat, jagged flakes. The flake shape traps air both between and within particles, giving panko its characteristic crispness when fried and its low bulk density. Recipes that call for panko specifically cannot substitute Western dried breadcrumbs 1:1 by volume: one cup of panko weighs less than half of what one cup of dried breadcrumbs weighs, and the coating produced will not brown or crisp the same way. Both panko and fresh breadcrumbs deserve their own entries, and are noted here as distinct products for completeness but not covered by this figure. Gluten-free breadcrumbs made from rice flour bread or similar have similar bulk density to standard dried breadcrumbs, typically 100 to 115 g per cup depending on the base bread, and can substitute 1:1 for coating and binding applications. No standards body publishes a bulk density for breadcrumbs. FDA identity standards do not exist for breadcrumbs as such; they are governed by the bread standards from which the crumbs derive. Two independent sources agree, which is enough to publish; confidence stays medium until a third independent measurement confirms it." }, { "id": "bread-flour", "schema_version": 3, "name": "Bread flour", "synonyms": [ "strong flour", "high-protein flour", "hard wheat flour", "artisan bread flour" ], "category": "milled", "default_state": "unspecified", "confidence": "low", "working_figure": { "grams": 120, "basis": "if you spoon the flour into the cup and level it" }, "states": [ { "id": "unspecified", "label": "Method not specified", "density_g_per_ml": null, "withheld": true, "withheld_reason": "Two sources disagree by 13.2%, over the 10% tolerance for this category.", "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 168896, SR Legacy, 1 undetermined cup = 137 g", "density_g_per_ml": 0.5791 }, { "name": "King Arthur Baking", "ref": "Ingredient Weight Chart, Bread Flour, 1 cup = 120 g", "density_g_per_ml": 0.5072 } ], "verified": "2026-09-16", "last_reviewed": "2026-09-16" } ], "yields": [], "notes": "Two sources 13.2% apart, over the 10% tolerance for the milled category, so this entry publishes a range rather than a figure. The disagreement is important because it reflects a genuine physical difference that most cup-to-gram converters obscure. USDA FDC 168896 (Wheat flour, white, bread, enriched) publishes a cup at 137 g (0.5791 g/ml). This figure is a bench measurement of standard commercial bread flour, and it sits materially higher than USDA's figure for all-purpose flour, which the flour entry documents at 125 g per cup. King Arthur's Ingredient Weight Chart lists their Bread Flour at 120 g per cup (0.5072 g/ml), the same figure they publish for their Artisan Bread Flour, Gluten-Free Bread Flour and All-Purpose Flour. Their chart uses one weight for all standard flours regardless of type. Bread flour is genuinely denser than all-purpose flour for two related reasons. It is milled from hard wheat rather than the blend of hard and soft wheats used for all-purpose flour, and hard wheat has a harder, denser endosperm that produces slightly denser milled particles. Its protein content is higher (typically 12 to 14 percent versus 10 to 12 percent for all-purpose), and wheat protein and wheat starch have similar densities in isolation but pack differently when milled together, with the higher-protein flour compacting slightly more efficiently in a cup. The 14 percent gap between USDA and King Arthur is consistent with these physical differences plus the ordinary measuring-method variance for a milled powder. Most published converters use figures near 120 to 125 g per cup for bread flour, inheriting the King Arthur simplification. This is convenient for recipe adaptation but underestimates the actual weight of bread flour by roughly 10 to 15 percent when measured by dip-and-sweep from a settled bag, which is how USDA appears to have measured it. For bread baking specifically, where hydration ratios are the whole game, the difference between 120 and 137 g per cup is the difference between an underhydrated dough that resists shaping and one that ferments and rises correctly. The practical recommendation implicit in the range published here is to weigh bread flour rather than measure it by volume; a 500 g flour weight for a standard boule is unambiguous, and 4 cups of bread flour measured by dip-and-sweep can range from 480 to 548 g between sources. Artisan bread flour, high-gluten flour, and pizza flour are related products with similar or slightly higher protein content and comparable density. King Arthur's Artisan Bread Flour (11.7 percent protein) sits at their standard 120 g per cup on the chart. High-gluten flour (14 to 15 percent protein) is typically 5 to 10 percent denser again but no bench measurement was found from a source that names its method. Italian tipo 00 pizza flour is a soft wheat flour milled extremely fine, closer to cake flour than bread flour in density, and is a distinct product. Vital wheat gluten (approximately 75 percent protein) is not a flour but a concentrated protein extract; USDA lists it separately at FDC 168911. FDA identity standards under 21 CFR 137.155 specify bread flour must have minimum protein content and be enriched with specific nutrients, but do not specify physical density. Codex Alimentarius CXS 152-1985 for wheat flour covers moisture, ash and particle size but not bulk density. Two sources only, and the range is published because no third source arbitrates between USDA's bench measurement and King Arthur's category-standard figure. The range 120 to 137 g per cup is the honest answer for a home baker who cannot tell which of the two better reflects the specific flour brand on their shelf." }, { "id": "brown-rice", "schema_version": 3, "name": "Brown Rice, Dry", "synonyms": [ "dry brown rice", "uncooked brown rice", "long-grain brown rice", "whole grain brown rice", "raw brown rice" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, dry long-grain, spooned and leveled", "density_g_per_ml": 0.78, "sources": [ { "name": "USDA FoodData Central SR Legacy — Rice, brown, long-grain, raw", "ref": "FDC ID 169703 (Includes foods for USDA's Food Distribution Program). 195 g per metric cup (185 g per US cup, density 0.7800 g/mL). Anchor for this entry.", "fdc_id": 169703, "density_g_per_ml": 0.78 }, { "name": "SE Grocers Brown Rice, Natural, Long Grain — nutrition label", "ref": "Store brand long-grain brown rice. 1/4 cup dry serving = 45 g, extrapolating to 180 g per US cup at density 0.7610 g/mL. Within 2.5 percent of the USDA anchor.", "density_g_per_ml": 0.761 }, { "name": "USDA FoodData Central Branded — Long Grain Brown Rice", "ref": "UPC 071524005505. Label-derived record; aqua-calc computes 178 g per metric cup (168 g per US cup, density 0.7120 g/mL). Falls 9.5 percent below the USDA SR anchor, at the edge of the 10 percent milled tolerance. Likely reflects a smaller-kernel variety or a settled versus loose measurement method.", "density_g_per_ml": 0.712 } ], "verified": "2026-09-23", "last_reviewed": "2026-09-23" } ], "yields": [], "notes": "Dry brown rice packs at about 185 g per US cup. USDA and producer labels agree within 10 percent, and brown rice ends up roughly the same density as white rice because the bran layer that distinguishes them adds very little mass to each kernel.\n\nBrown rice is unhulled rice with the outer husk removed but the bran layer and germ intact. It is the same rice kernel as white rice — Oryza sativa — but processed one step less: white rice has been additionally milled to remove the bran and germ, leaving only the starchy endosperm. Brown rice has more fiber, more B vitamins, and a nuttier flavor, and takes about twice as long to cook because the bran layer slows water absorption. In US retail, long-grain brown rice is the default and this entry covers it; short-grain and medium-grain brown rice are less common in mainstream US markets and tend to pack slightly denser because their kernels are more spherical and nest more efficiently.\n\nSources converge closely around 185 g per US cup. USDA FoodData Central's Rice, brown, long-grain, raw (FDC ID 169703, part of the USDA Food Distribution Program record) gives 195 g per metric cup, which works out to 185 g per US cup at a density of 0.780 g/mL. This is the anchor for the entry. SE Grocers Brown Rice, Natural, Long Grain labels a 1/4 cup dry serving as 45 g, extrapolating to 180 g per US cup (density 0.761 g/mL, within 2.5 percent of USDA). USDA Branded Foods Long Grain Brown Rice (UPC 071524005505) reports 178 g per metric cup (168 g per US cup, density 0.712 g/mL, 9.5 percent below the USDA SR figure and just inside the 10 percent milled tolerance). Aggregator conversion sites cluster at 190 to 195 g per cup, all slightly above the USDA SR anchor and consistent with the direction of the observed spread.\n\nBrown rice and white rice end up at essentially the same cup density even though brown rice retains an extra bran layer. This is because the bran is a thin fibrous coating on the outside of each kernel — only about 8 percent of total kernel mass — and its presence does not significantly increase per-kernel weight or change how kernels pack in a cup. The kernels are similar shapes and sizes and settle in a measuring cup at roughly the same density. What differs is cooking behavior and nutrition profile, not raw dry density.\n\nKing Arthur's Ingredient Weight Chart does not list uncooked brown rice. It publishes only cooked brown rice at 1 cup = 6 oz (170 g), which is a different food — the grains have swollen with water during cooking and the cup weight cannot be read back into a dry measure. KA also publishes uncooked white long-grain rice at 1/2 cup = 3 1/2 oz (99 g), which doubled would extrapolate to 198 g per cup, 7 percent above the USDA reference for uncooked white rice, likely reflecting how a half-cup measure fills differently from a full cup.\n\nFor recipes calling for brown rice by cup, the difference between the lightest and heaviest published dry figures is about 17 g per cup — enough to change the water ratio needed for absorption cooking but not enough to change the final texture significantly. Brown rice cooks by absorption at a 1:2 to 1:2.25 water ratio for 40 to 45 minutes; the standard yield is about 3 cups cooked per cup dry (from 185 g dry to roughly 550 g cooked). For meal-prep quantities where portion control matters, weight-based measurement is more consistent than volume." }, { "id": "brown-rice-flour", "schema_version": 3, "name": "Brown rice flour", "synonyms": [ "whole grain brown rice flour", "organic brown rice flour", "gluten-free brown rice flour", "stone-ground brown rice flour" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, spooned into the cup", "density_g_per_ml": null, "range_min": 0.5411, "range_max": 0.6679, "withheld": true, "withheld_reason": "Two authoritative sources disagree by 23.4%, well over the 10% milled tolerance. The variation reflects real differences in grind fineness between manufacturer products, so this entry publishes the range rather than picking one figure.", "sources": [ { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Brown rice flour', 1 cup = 128 g. Density 0.5411 g/mL.", "density_g_per_ml": 0.5411 }, { "name": "USDA FoodData Central", "ref": "USDA SR Legacy, brown rice flour. Published: 1 cup = 574 kcal, 100 g = 363 kcal. Back-calculating: cup weight = (574/363) × 100 = 158 g. Density 0.6679 g/mL. USDA Branded Foods records for common commercial brands span 120 g (Anthony's, 30 g per 1/4 cup) to 160 g (Bob's Red Mill, 40 g per 1/4 cup), confirming the brand variation.", "density_g_per_ml": 0.6679 } ], "verified": "2026-09-20", "last_reviewed": "2026-09-20" } ], "yields": [], "notes": "Two authoritative sources disagree by 23.4%, well over the 10% milled tolerance. USDA FoodData Central SR Legacy publishes 574 calories per US cup and 363 calories per 100 g for brown rice flour, back-calculating to a cup weight of 158 g and density of 0.6679 g/mL. King Arthur's Ingredient Weight Chart lists brown rice flour at 128 g per cup, implying 0.5411 g/mL. Both are authoritative sources, and the gap between them is real: USDA Branded Foods records for common commercial brands confirm brown rice flour's cup weight varies from approximately 120 g (Anthony's, 30 g per 1/4 cup serving) to 160 g (Bob's Red Mill, 40 g per 1/4 cup), a 33% span driven by grind fineness.\n\nBrown rice flour is produced by milling whole brown rice kernels including the bran and germ. Different manufacturers use different final grinds. Fine 'baby' grinds intended for delicate baked goods trap more air and pack less densely; coarser 'meal-style' grinds intended for gluten-free bread mixes pack tighter. King Arthur sits near the low end of the range, consistent with baking-focused sourcing where finer grinds dominate. USDA's SR Legacy figure sits at the high end, likely reflecting a coarser reference sample from earlier commercial practice when whole-grain flours were less commonly used in home baking.\n\nThis entry publishes the range 128 to 158 g per cup, at low confidence, because averaging the two figures would produce a number no manufacturer's product actually matches. Home bakers using brown rice flour in gluten-free blends should weigh rather than measure by volume: a 30 g error over a cup meaningfully changes hydration and crumb structure in bread and pastry recipes. This matters more for gluten-free baking than for wheat baking because gluten-free flours lack the elastic network that tolerates hydration variance.\n\nThe pattern mirrors this site's existing entry for white rice flour, which publishes the same 128 to 158 g range for the same underlying reason. Rice flour, whether brown or white, is inherently a range-publish ingredient across the source hierarchy this site uses. The whole-grain composition of brown rice flour (bran and germ retained during milling) does not measurably affect bulk density compared to refined white rice flour, though it changes protein, fiber and mineral content substantially and shortens shelf life due to the oils in the bran.\n\nBrown rice flour sits in the milled category alongside all other flours. The 10% category tolerance applies here, and the observed 23% gap between authoritative sources clearly exceeds it. Range publish is the honest outcome.\n\nRelated products: white rice flour is covered by a separate entry with the same range. Sweet or glutinous rice flour is a distinct product (from short-grain glutinous rice) not yet covered by this site because King Arthur has no dedicated row and USDA data is thin. Brown rice cooked is a separate case not published here: cooked ingredients change weight dramatically through water absorption and are outside this site's cup-to-gram uncooked baseline. Rice bran and rice germ, sometimes sold separately as nutritional supplements, are distinct products with distinct densities.\n\nNo standards body publishes a bulk density for rice flour. Codex Alimentarius standards for rice (CXS 198-1995) cover moisture content, grade and foreign material tolerance but not physical density. Two authoritative sources with real brand variation, so this entry is held at low confidence and range published until a third independent source resolves the split.", "last_reviewed": "2026-09-20" }, { "id": "buckwheat-flour", "schema_version": 3, "name": "Buckwheat flour", "synonyms": [ "whole groat buckwheat flour", "dark buckwheat flour", "gluten-free buckwheat flour", "sarrasin flour" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, whole-groat, spooned into the cup", "density_g_per_ml": 0.5072, "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 170687, Buckwheat flour, whole-groat (SR Legacy). Published: 1 cup = 402 kcal, 100 g = 335 kcal. Back-calculating: cup weight = (402/335) × 100 = 120 g. Density 0.5072 g/mL.", "density_g_per_ml": 0.5072 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Buckwheat Flour', 1 cup = 120 g. Density 0.5072 g/mL. Exact match with USDA.", "density_g_per_ml": 0.5072 } ], "verified": "2026-09-20", "last_reviewed": "2026-09-20" } ], "yields": [], "notes": "Two authoritative sources agree exactly. USDA FoodData Central SR Legacy (FDC 170687, Buckwheat flour, whole-groat) publishes a cup at 402 kcal and 100 g at 335 kcal, back-calculating to a cup weight of 120 g and density of 0.5072 g/mL. King Arthur's Ingredient Weight Chart lists buckwheat flour at 120 g per cup, an exact match. Both sources publish the same figure, so this entry publishes 120 g per cup at medium confidence.\n\nPerfect agreement between two independent authoritative sources is unusual on this site and worth noting. The comparable entry for brown rice flour publishes as a range of 128 to 158 g per cup because USDA and King Arthur disagree by 23% for that ingredient, driven by grind fineness variation between brands. Buckwheat flour does not show the same disagreement. This likely reflects two factors: buckwheat flour is a smaller commercial category than rice flour, with fewer brands and more consistent processing standards; and the whole-groat versus light-flour distinction is clearer in the industry, so both authoritative sources are measuring the same product specification (whole-groat, including the darker outer layers of the seed).\n\nUSDA Branded Foods records confirm the baseline. Hodgson Mill buckwheat flour lists 30 g per 1/4 cup serving, extrapolating to exactly 120 g per cup, matching USDA SR Legacy and King Arthur. Bob's Red Mill Organic buckwheat flour lists 37 g per 1/4 cup, extrapolating to 148 g per cup, which is higher and likely reflects a coarser or organic-specification grind. This is single-brand outlier variation rather than industry-wide disagreement, and it does not warrant a range publish here.\n\nBuckwheat is a pseudocereal, not a true grain. It is the seed of the Fagopyrum esculentum plant, a member of the Polygonaceae family (same family as rhubarb and sorrel), unrelated to wheat despite its name. It contains no gluten and is a staple of gluten-free baking, most iconically in Russian blini, French galettes de sarrasin, and Japanese soba noodles. American home baking most commonly uses it in pancakes and muffins, often blended with wheat flour to soften the earthy flavor.\n\nWhole-groat buckwheat flour, the product covered here, includes the darker outer hull fragments and has a stronger flavor, darker color and higher fiber content than light buckwheat flour (which is milled from hulled groats only and is closer to white in color). USDA's SR Legacy record specifies whole-groat; King Arthur's chart does not distinguish variety, but their generic 'buckwheat flour' figure agrees with USDA's whole-groat measurement exactly. Light buckwheat flour is a separate product not covered by this entry; its density is not published in the sources this site currently uses.\n\nBuckwheat flour sits in the milled category alongside all other flours. The 10% category tolerance applies, and the observed 0% gap between authoritative sources is far inside it. Two sources agreeing exactly is stronger evidence than two sources agreeing within tolerance, so this entry would move to high confidence with the addition of a single independent standards body reference, though none currently exists for buckwheat flour density.\n\nRelated products not covered by this entry: kasha (roasted whole buckwheat groats) is a distinct product with different density because the groats are whole rather than milled. Buckwheat groats (raw) are another distinct product. Soba flour is typically buckwheat blended with wheat and would require separate sourcing. No standards body publishes a bulk density for buckwheat flour. Codex Alimentarius standards for buckwheat cover moisture content, defect tolerances and grading rather than physical density.", "last_reviewed": "2026-09-20" }, { "id": "buckwheat-groats", "schema_version": 3, "name": "Buckwheat Groats", "synonyms": [ "raw buckwheat groats", "whole buckwheat", "hulled buckwheat", "buckwheat kernels", "kasha", "roasted buckwheat groats", "toasted buckwheat" ], "category": "milled", "default_state": "raw", "confidence": "high", "states": [ { "id": "raw", "label": "Raw (untoasted) whole groats, dry, spooned and leveled", "density_g_per_ml": 0.7185, "range_min": null, "range_max": null, "sources": [ { "name": "USDA SR Legacy \"Buckwheat\" (FDC 170286)", "ref": "USDA Standard Release publishes 1 cup = 170 g (density 0.719 g/mL), its only household portion for the whole grain. Water 9.75 g, protein 13.3 g, fat 3.4 g, carbohydrate 71.5 g, fibre 10.0 g per 100 g.", "fdc_id": 170286, "density_g_per_ml": 0.7185 }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "KA lists \"Buckwheat (whole)\" at 1 cup = 6 oz = 170 g, density 0.719 g/mL, an exact match with USDA.", "density_g_per_ml": 0.7185 }, { "name": "Bob's Red Mill Organic Buckwheat Groats (producer label)", "ref": "Retail nutrition label (Kroger), 16-oz bag: 1/4 cup (45 g), 10 servings, extrapolating to 180 g per cup (density 0.761 g/mL). 45 g per quarter cup is the serving weight printed on dry-grain labels across products, so it does not decide a figure on its own.", "density_g_per_ml": 0.7608 } ], "verified": "2026-10-26", "last_reviewed": "2026-10-26" }, { "id": "roasted", "label": "Roasted groats (kasha), whole granulation, dry, spooned and leveled", "density_g_per_ml": 0.6932, "range_min": null, "range_max": null, "sources": [ { "name": "USDA SR Legacy \"Buckwheat groats, roasted, dry\" (FDC 170685)", "ref": "USDA Standard Release publishes 1 cup = 164 g (density 0.693 g/mL). Water 8.41 g, protein 11.7 g, fat 2.71 g, carbohydrate 75.0 g, fibre 10.3 g per 100 g.", "fdc_id": 170685, "density_g_per_ml": 0.6932 }, { "name": "Wolff's Kasha Whole Granulation Roasted Buckwheat (producer label)", "ref": "Retail nutrition label (ShopRite), 13-oz box: 1/4 cup dry (45 g), 8 servings, extrapolating to 180 g per cup (density 0.761 g/mL), the dry-grain serving weight.", "density_g_per_ml": 0.7608 } ], "verified": "2026-10-26", "last_reviewed": "2026-10-26" } ], "yields": [], "notes": "A cup of raw buckwheat groats weighs 170 g (6 oz), and a cup of roasted groats, kasha, weighs 164 g (5.8 oz). USDA and King Arthur both give exactly 170 g for whole buckwheat, so this entry publishes that figure; USDA's roasted record gives 164 g.\n\nBuckwheat (Fagopyrum esculentum) is not a wheat or any other grass. It is the seed of a flowering plant related to rhubarb and sorrel, cooked and eaten like a grain, which makes it a pseudocereal and naturally gluten-free. Groats are the hulled seeds: small three-sided pyramids, pale tan to green when raw. Roasted groats turn reddish brown and taste nutty; in Eastern Europe and in US shops they are sold as kasha, often by granulation: whole, coarse, medium and fine.\n\nUSDA SR Legacy \"Buckwheat\" (FDC 170286) gives 1 cup = 170 g, its only household measure, and puts the grain at 9.75% water, 13.3% protein and 10% fibre. King Arthur gives 1 cup of whole buckwheat at 6 oz, 170 g, an exact match, and its figure is accepted. USDA's \"Buckwheat groats, roasted, dry\" (FDC 170685) gives 1 cup = 164 g at 8.41% water.\n\nThe physical check: a firm, dry seed of starch and protein is roughly 1.3 times as dense as water, so 170 g in a 237 mL cup means the groats fill a little over half of it, the usual fill for small hard grains poured loosely. The neighbours on this site agree: whole quinoa weighs 170 g per cup and wheat berries 192 g. Roasting drives out a little more water and slightly puffs the seed, so a cup of kasha weighs a few percent less than raw groats, as USDA's two records show.\n\nLabels give a heavier figure for a reason that has nothing to do with buckwheat. Bob's Red Mill's raw groats, Pure Indian Foods' groats and Wolff's whole-granulation kasha all print 1/4 cup as 45 g, which is 180 g per cup. The same 45 g quarter cup appears on many dry-grain labels, rice among them, a standard serving weight with the nearest measure beside it, so those labels are kept as sources but do not decide the figure. Both sit within 10% of USDA.\n\nGranulation matters for kasha. The figures here are for whole groats. Coarse, medium and fine kasha are cracked pieces of the same seed, and smaller pieces fill the gaps between larger ones, so expect a cracked kasha to weigh more per cup than whole. Milling all the way to flour goes the other way: buckwheat flour on this site weighs 120 g per cup, because fine powder holds far more air than whole seeds.\n\nPractical guidance: use 170 g per cup for raw groats, 85 g per half cup and 42 g per quarter cup; use 164 g per cup for whole roasted kasha. Bob's Red Mill cooks 1 cup of raw groats in 2 cups of water and 1 cup of its kasha in 1 1/2 cups. Rinse raw groats before cooking, and toast them in a dry pan for a few minutes if a recipe wants kasha's flavour, then measure by weight, since toasting changes the volume slightly." }, { "id": "bulgur", "schema_version": 3, "name": "Bulgur, Dry", "synonyms": [ "bulgur wheat", "cracked wheat parboiled", "burghul", "dry bulgur", "uncooked bulgur" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, dry, spooned and leveled", "density_g_per_ml": null, "range_min": 0.592, "range_max": 0.727, "withheld": true, "withheld_reason": "Bulgur is sold in four size grades — fine (#1), medium (#2), coarse (#3), and extra coarse (#4) — that pack meaningfully differently, and most retail packages do not display the grade number prominently. Published measurements span 140 g per US cup (USDA FoodData Central) to 172 g per US cup (Bob's Red Mill medium grind), a 23 percent spread that exceeds the 10 percent milled tolerance.", "sources": [ { "name": "USDA FoodData Central — Bulgur, dry (FDC 170688)", "ref": "USDA reference record. 148 g per metric cup (140 g per US cup, density 0.5920 g/mL). Lightest source in the observed range; likely represents a finer grade or an older measurement method.", "density_g_per_ml": 0.592 }, { "name": "King Arthur Baking — Ingredient Weight Chart", "ref": "Chart lists Bulgur at 1 cup = 5 3/8 oz (152 g per US cup, density 0.6425 g/mL). Sits in the middle of the observed range and is not a correction target — KA's figure is legitimate for whatever grade they used to compile it.", "density_g_per_ml": 0.6425 }, { "name": "USDA FoodData Central Branded — Bulgur Wheat", "ref": "UPC 890352001554. Label-derived record; aqua-calc computes 169 g per metric cup (159 g per US cup, density 0.6760 g/mL). Toward the coarser end of the observed range.", "density_g_per_ml": 0.676 }, { "name": "Bob's Red Mill Bulgur Wheat (medium grind #2) — nutrition label", "ref": "Product page identifies the grind explicitly as medium (#2). 1/4 cup dry serving = 43 g, extrapolating to 172 g per US cup at density 0.7270 g/mL. Heaviest source in the observed range, consistent with an explicit medium-coarse grade specification.", "density_g_per_ml": 0.727 } ], "verified": "2026-09-23", "last_reviewed": "2026-09-23" } ], "yields": [], "notes": "Bulgur packs at 140 to 172 g per US cup depending on grind. USDA reference, King Arthur, and producer labels span 23 percent because bulgur is sold in multiple grades (fine, medium, coarse, extra coarse) that pack differently, and retail packages usually do not label which grade is inside.\n\nBulgur is cracked, parboiled, and dried wheat berries — a Middle Eastern and Mediterranean staple used in tabbouleh, pilaf, kibbeh, and hot cereal. Wheat berries are boiled until partially cooked, dried, and cracked into pieces. The pieces are then sorted by size into four grades: fine (#1, roughly 1 to 1.5 mm), medium (#2, roughly 2 to 3 mm), coarse (#3, roughly 3 to 4 mm), and extra coarse (#4, roughly 5 to 6 mm). Fine bulgur is used in tabbouleh and kibbeh where fine texture matters; medium is the most common US retail grade for pilaf; coarse and extra coarse are used in soups and heartier grain dishes.\n\nSources cover the full range that different grades produce. USDA FoodData Central's Bulgur, dry (FDC 170688) gives 148 g per metric cup, which works out to 140 g per US cup at a density of 0.592 g/mL. King Arthur's Ingredient Weight Chart lists Bulgur at 5 3/8 oz per cup (152 g, density 0.6425 g/mL). USDA Branded Foods Bulgur Wheat (UPC 890352001554) reports 169 g per metric cup (159 g per US cup, density 0.676 g/mL). Bob's Red Mill medium-grind #2 bulgur labels a 1/4 cup dry serving as 43 g, extrapolating to 172 g per US cup at density 0.727 g/mL. Total spread is 23 percent, well over the 10 percent milled tolerance held for this category.\n\nThe spread is driven by grade rather than measurement error. Different grinds of bulgur pack meaningfully differently because the particle-size distribution changes the ratio of packed grain to void space in a cup, and because the larger particles are more angular and less spherical, so they do not nest as well. Bob's Red Mill medium #2 at 172 g per cup is the heaviest published figure and represents a common US retail grind; USDA SR at 140 g per cup is the lightest and may represent a finer grade or a different measurement method. The retail packages themselves usually do not display the grade number prominently — a shopper picking up bulgur at the supermarket typically gets medium #2 by default, but some brands sell fine bulgur under the same name without a grade specifier, and imported Middle Eastern brands vary widely.\n\nKing Arthur's Ingredient Weight Chart at 152 g per cup sits in the middle of the observed range and is not a correction target here. KA's figure is legitimate for whatever grade they used to compile it, and the site's usual pattern of flagging KA fluid-ounce errors does not apply — this is genuine product variance across bulgur grades, not a measurement mistake. Because the range is real variance across products marketed under the same name, this entry publishes the range rather than picking one figure.\n\nFor recipes that specify bulgur by cup, medium grade (#2) is the safest assumption for US retail unless the recipe specifies otherwise. Fine bulgur (#1) works better in tabbouleh where the grain absorbs dressing quickly; coarse (#3 or #4) is better in soups and pilafs where a firmer bite is wanted. Bulgur cooks by absorption: fine takes about 1:2 water for 5 to 10 minutes; medium takes 1:2.25 for 12 to 15 minutes; coarse takes 1:2.5 for 15 to 20 minutes. All grades roughly double in volume from dry to cooked." }, { "id": "buttermilk-powder", "schema_version": 3, "name": "Buttermilk Powder", "synonyms": [ "dried buttermilk", "dry buttermilk", "powdered buttermilk", "buttermilk powder dried", "sweet cream buttermilk powder", "cultured buttermilk powder" ], "category": "milled", "default_state": "standard", "confidence": "high", "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": 0.5072, "range_min": null, "range_max": null, "sources": [ { "name": "USDA SR Legacy \"Milk, buttermilk, dried\" (FDC 171274)", "ref": "USDA Standard Release publishes 1 cup = 120 g (density 0.507 g/mL) and 1/4 cup = 30 g; its 1 tbsp = 6.5 g scales to 104 g per cup. Water 2.97 g, protein 34.3 g, fat 5.78 g, carbohydrate 49.0 g, ash 7.95 g per 100 g.", "fdc_id": 171274, "density_g_per_ml": 0.5072 }, { "name": "King Arthur Dried Buttermilk Powder (producer label)", "ref": "Package nutrition panel: Serving size 1/4 cup (30 g), extrapolating to 120 g per cup (density 0.507 g/mL). Ingredients: buttermilk.", "density_g_per_ml": 0.5072 }, { "name": "NOW Foods Buttermilk Powder (producer label)", "ref": "Brand site: 1/4 cup dry (30 g), extrapolating to 120 g per cup. Ingredients: sweet cream buttermilk powder.", "density_g_per_ml": 0.5072 }, { "name": "Bob's Red Mill Sweet Cream Buttermilk Powder (producer label)", "ref": "Retail nutrition label (Ralphs): 2 Tbsp (15 g), extrapolating to 120 g per cup. Ingredients: dried sweet cream buttermilk.", "density_g_per_ml": 0.5072 }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "KA lists \"Buttermilk powder\" at 2 tablespoons = 2/3 oz = 18 g, extrapolating to 144 g per US cup, density 0.609 g/mL.", "density_g_per_ml": 0.6087, "rejected": true, "rejection_reason": "0.609 g/mL contradicts King Arthur's own Dried Buttermilk Powder package, which gives 1/4 cup at 30 g, 120 g per cup. USDA SR Legacy (1 cup = 120 g), NOW Foods (1/4 cup = 30 g) and Bob's Red Mill (2 tbsp = 15 g) give the same density as the package. From USDA's composition the solid powder is about 1.43 g/mL, so a spooned cup at 120 g is about a third powder; 144 g is the same cup packed a fifth tighter, a scooped or tapped cup rather than a spooned one." } ], "verified": "2026-10-26", "last_reviewed": "2026-10-26" } ], "yields": [], "notes": "Buttermilk powder weighs 120 g per US cup (4.2 oz), 30 g per quarter cup and 15 g per 2 tablespoons. USDA, King Arthur's own Dried Buttermilk Powder package, NOW Foods and Bob's Red Mill all give exactly that density. King Arthur's chart, at 18 g per 2 tablespoons (144 g per cup), contradicts King Arthur's own label and is rejected.\n\nButtermilk powder is buttermilk with the water taken out: the liquid left after cream is churned into butter, dried to a fine powder. NOW and Bob's Red Mill sell it as sweet cream buttermilk powder, and King Arthur's ingredient list reads simply \"buttermilk\". USDA puts it at 3% water, 49% lactose, 34% protein, 8% minerals and 6% fat. Bakers keep it for pancakes, biscuits, scones, breads and ranch-style seasoning: the powder goes in with the dry ingredients and the water with the wet. King Arthur's directions reconstitute it at 1 part powder to 4 parts water.\n\nUSDA SR Legacy \"Milk, buttermilk, dried\" (FDC 171274) lists 1 cup at 120 g and 1/4 cup at 30 g. King Arthur's Dried Buttermilk Powder package gives 1/4 cup at 30 g, NOW Foods' label 1/4 cup at 30 g, and Bob's Red Mill's 2 tablespoons at 15 g: all four are 120 g per cup. USDA's own tablespoon, 6.5 g, scales to only 104 g per cup, a reminder that a level tablespoon of fine powder rarely scales up exactly. A few smaller brands, as transcribed by the recipe-costing site ReciPal, label heavier: Anthony's and Hoosier Hill at 8 g per tablespoon (128 g per cup) and Judee's at 18 g per 2 tablespoons (144 g). Saco's Cultured Buttermilk Blend is a different product, churned buttermilk blended with sweet whey and lactic acid; its can serves 4 tablespoons, retailers list that serving at 23 g, about 92 g per cup, so follow its own label.\n\nThe physical check compares the figure with what the powder is made of. From USDA's composition, the solid powder with no air in it is about 1.43 g/mL, so a cup at 120 g is about a third powder and two thirds air, which is how a fine, dry powder behaves when spooned. The other non-instant dairy powders on this site agree: non-instant nonfat dry milk weighs 112 to 148 g per cup and whole milk powder 100 to 120 g. King Arthur's 144 g would be a cup packed a fifth tighter, the weight of a cup scooped from the bag or tapped down rather than spooned.\n\nKing Arthur's chart lists buttermilk powder at 2 tablespoons = 2/3 oz = 18 g, 144 g per cup. King Arthur's own package for its dried buttermilk says 1/4 cup is 30 g, which is 15 g per 2 tablespoons. The chart and the label cannot both be right, and USDA, NOW and Bob's Red Mill side with the label. The chart figure is recorded as a rejected source with its own correction page.\n\nPractical guidance: 1 tablespoon is 7.5 g, 2 tablespoons 15 g, 1/4 cup 30 g and 1/3 cup 40 g. To replace 1 cup of liquid buttermilk, King Arthur's 1-to-4 ratio works out to 1/4 cup of powder (30 g) and 1 cup of water. Opened powder takes up moisture and forms lumps; keep it tightly closed and break up lumps before measuring, since a lumpy cup packs unevenly. Spoon the powder into the cup and level it rather than scooping." }, { "id": "cacao-nibs", "schema_version": 3, "name": "Cacao Nibs", "synonyms": [ "cacao nibs", "cocoa nibs", "cacao", "cocoa" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": null, "range_min": 0.5072, "range_max": 0.6298, "withheld": true, "withheld_reason": "King Arthur publishes 120 g/cup, while three major producer labels (Anthony's, Navitas, Terrasoul) converge on 144-149 g/cup. The 24% gap between them cannot be reconciled without measuring a specific product; publishing as a range to reflect the actual commercial variance rather than picking sides.", "sources": [ { "name": "King Arthur Baking Company Ingredient Weight Chart", "ref": "Lists cacao nibs at 1 cup = 120 g (4.25 oz). This is substantially lower than three converging producer labels and would imply a nib packing density of about 0.51 g/mL, which is at the very low end of physically plausible for broken cacao pieces (the solid material has a density near 1.1 g/mL and typical broken/packed material is 0.55-0.7 g/mL).", "density_g_per_ml": 0.5072 }, { "name": "Anthony's Organic Cocoa Nibs label", "ref": "Nutrition Facts panel states 3 tbsp = 28 g, which computes to 149 g/cup (1 tbsp = 9.33 g). Corresponds to a density of about 0.63 g/mL, consistent with typical packed broken cacao.", "density_g_per_ml": 0.6298 }, { "name": "Navitas Organics Cacao Nibs label", "ref": "Nutrition Facts panel states 1 tsp = 3 g, which linearly scales to 144 g/cup. The same product's 3 tbsp calorie count (190 cal) implies a slightly higher per-tablespoon weight (about 11 g, or 176 g/cup), suggesting internal labeling inconsistency; the smaller-serving-size panel is used here.", "density_g_per_ml": 0.6088 }, { "name": "Terrasoul Superfoods Cacao Nibs label", "ref": "Nutrition Facts panel states 1 tsp = 3 g, which linearly scales to 144 g/cup. Matches Navitas's per-teaspoon labeling.", "density_g_per_ml": 0.6088 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "TL;DR: King Arthur publishes cacao nibs at 120 grams per US cup, but three major producer labels (Anthony's, Navitas, Terrasoul) cluster at 144-149 g/cup. The producer figures are more consistent with the physical density of broken cacao and are the better default for anyone measuring by weight.\n\nCacao nibs are broken pieces of fermented, roasted (or raw) cacao bean, typically 2-5 mm across. Because they are broken chunks rather than a powder, the density of a scooped cup depends heavily on the specific piece size, how tightly they settle in the container, and how much they were shaken or tapped before measuring. This makes cacao nibs unusually sensitive to measurement method — more so than a flour or a granulated sugar.\n\nThere is a real disagreement in the reference data. King Arthur's ingredient chart lists 1 cup at 120 grams (4.25 oz). Three widely-distributed producer labels tell a different story: Anthony's Organic Cocoa Nibs prints 3 tbsp at 28 g (149 g/cup), Navitas Organics prints 1 tsp at 3 g (144 g/cup by linear scaling), and Terrasoul Superfoods also prints 1 tsp at 3 g (144 g/cup). The 120 g/cup and 145 g/cup figures cannot both be right for the same physical product — they represent a 20-25% disagreement, which is large enough to change a recipe result.\n\nA physical density check favors the producer cluster. Solid cacao has a density near 1.1 g/mL. Broken pieces packed into a container leave air gaps between them; typical packing efficiencies for irregular broken material fall between 55% and 65% of the solid density, giving an expected range of 0.60-0.72 g/mL, or roughly 142-170 g/cup. Anthony's at 149 g/cup sits right in this window. King Arthur's 120 g/cup would require the nibs to pack at only 46% of solid density, which is low even for very loosely-settled material.\n\nOne caveat: Navitas's own labeling is internally inconsistent. Their 1 tsp = 3 g panel implies 144 g/cup, but their 3 tbsp = 190 calorie count implies closer to 176 g/cup (about 11 g per tablespoon). This is likely a rounding artifact from Navitas printing the same product with different serving-size conventions across product runs, but it suggests that even the producer figures should be treated as approximate.\n\nWhat to do in practice: if you are following a King Arthur recipe by weight, use their 120 g/cup figure — the recipe was tested against that assumption. If you are working from a general recipe that specifies cups without a weight, the safer default is the producer cluster around 144-149 g/cup, since that is what three of the largest cacao nib brands print on the bags people are actually measuring from.\n\nFor anything more precise than 'a cup', weigh the nibs directly. A digital kitchen scale eliminates the packing-density question entirely, and cacao nibs are dense and small enough that a few grams of scatter around the target weight is a rounding error, not a recipe failure." }, { "id": "cake-flour", "schema_version": 3, "name": "Cake flour", "synonyms": [ "soft wheat flour", "pastry cake flour", "unbleached cake flour" ], "category": "milled", "default_state": "dipped", "confidence": "low", "working_figure": { "grams": 120, "basis": "if you spoon the flour into the cup and level it" }, "states": [ { "id": "dipped", "label": "Unsifted, dipped and swept", "density_g_per_ml": null, "withheld": true, "withheld_reason": "One source. A figure is published only when at least two independent sources measure the same method.", "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 169723, SR Legacy, 1 cup unsifted, dipped = 137 g", "method": "unsifted, dipped", "density_g_per_ml": 0.5791 } ], "verified": "2026-09-16", "last_reviewed": "2026-09-16" }, { "id": "spooned", "label": "Spooned and swept", "density_g_per_ml": null, "withheld": true, "withheld_reason": "One source, and its method is stated on a different page from its figure. A figure is published only when at least two independent sources measure the same method.", "sources": [ { "name": "King Arthur Baking", "ref": "Ingredient Weight Chart, Unbleached Cake Flour, 1 cup = 120 g", "method": "Spoon dry ingredients gently into the cup. Sweep off any excess.", "density_g_per_ml": 0.5072 } ], "verified": "2026-09-16", "last_reviewed": "2026-09-16" } ], "yields": [], "notes": "Cake flour is the first entry in this dataset where USDA explicitly names the measurement method on the portion itself, rather than recording an undetermined cup. USDA FDC 169723 (Wheat flour, white, cake, enriched) publishes its cup as 137 g measured unsifted and dipped, and this is a distinctly different state from the spooned figure King Arthur gives on the Ingredient Weight Chart for their Unbleached Cake Flour at 120 g per cup. The two figures do not disagree in the sense that flour or bread flour disagree; they describe two different ways of filling the cup with the same substance, and the entry splits into two states, one for each method, for the same reason the all-purpose flour entry splits into three. Cake flour is milled from soft wheat, which has lower protein content (typically 6 to 9 percent) than the hard wheats used for all-purpose and bread flours. It is milled extremely fine and often chlorinated (in bleached cake flour) to weaken the gluten proteins further, producing the tender, fine crumb that gives sponge cakes, chiffon cakes and angel food cakes their characteristic lightness. The finer particle size makes cake flour more susceptible to compaction and packing variability than coarser flours. Dipping into a settled bag captures air-free flour tightly against the cup; spooning fills the cup with more air trapped between particles. The 14 percent gap between USDA's 137 g and King Arthur's 120 g is consistent with this difference and is not a measurement error on either side. A third state exists in traditional baking practice: sifted cake flour, which most classic cake recipes historically specified. Sifting breaks up any clumps that have formed and traps additional air between particles, and sifted cake flour typically weighs about 100 g per cup measured after sifting. This state is not published here because no independent source with the required method attribution was found; converter sites that publish 100 g per cup for sifted cake flour trace back to Wilton and to older editions of Betty Crocker, which state the figure without describing measurement conditions in enough detail to count as a measurement. If a source that documents sifted cake flour with a stated method turns up, this entry will gain a third state. Recipe substitution is a common question for home bakers who lack cake flour. Removing two tablespoons of all-purpose flour per cup and replacing them with two tablespoons of cornstarch produces a workable substitute with approximately the right protein content, though the particle size distribution is coarser than true cake flour and the results tend to be slightly less tender. Bleached and unbleached cake flour have similar density; the bleaching process affects protein structure and color but not bulk density measurably. Swans Down and Softasilk are the two dominant US bleached cake flour brands, both published in similar weight ranges to the USDA figure. FDA identity standards under 21 CFR 137.180 specify cake flour must be milled from soft wheat and enriched with specific nutrients, but do not specify density. Codex Alimentarius has no specific standard for cake flour. To publish a single figure, each state needs two further sources that name its method and measure it. The entry stays at low confidence and publishes the range across its two states, 120 to 137 g per cup, until additional sources fill it out." }, { "id": "caraway-seeds", "schema_version": 3, "name": "Caraway Seeds", "synonyms": [ "caraway", "caraway seed", "whole caraway seeds", "carum carvi", "kummel", "kümmel" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, whole seeds, spooned and leveled", "density_g_per_ml": null, "range_min": 0.4523, "range_max": 0.6086, "withheld": true, "withheld_reason": "Genuine 34.6% spread across measurement sources. USDA anchors the low end at 107 g/cup (0.452 g/mL); King Arthur and three aqua-calc branded UPC records cluster at 134-144 g/cup (0.568-0.609 g/mL). No single figure is defensible across both camps.", "sources": [ { "name": "USDA SR Legacy \"Spices, caraway seed\" (FDC 170918)", "ref": "USDA National Nutrient Database Standard Reference (NDB 02005, now FDC 170918) publishes 113 g per metric cup for caraway seed, corresponding to 107 g per US cup and a density of 0.452 g/mL. Density anchor low.", "fdc_id": 170918, "density_g_per_ml": 0.4523 }, { "name": "Chef's Resources Dry Spice Conversions", "ref": "Chef's Resources tabulates whole caraway seed at 4.10 oz per US cup, roughly 116 g/cup (density 0.490 g/mL). Same table gives ground caraway at 5.0 oz/cup (142 g), heavier than whole — consistent with Apiaceae schizocarp morphology where grinding collapses hollow fruit cavities (same direction as coriander, opposite from mustard and cumin).", "density_g_per_ml": 0.4903 }, { "name": "aqua-calc branded record UPC 016291441088 (Caraway Seeds)", "ref": "Retail branded caraway seed record shows 142 g per metric cup, equivalent to 134 g per US cup (4.7 oz/US cup) and density 0.568 g/mL. Substantially heavier than the USDA reference; sourced from USDA Global Branded Foods.", "density_g_per_ml": 0.568 }, { "name": "aqua-calc branded record UPC 016291442085 (100% Organic Caraway Seeds)", "ref": "Organic branded caraway record matches UPC 016291441088 at 142 g per metric cup / 134 g per US cup (density 0.568 g/mL). Organic and conventional caraway measure identically in this dataset.", "density_g_per_ml": 0.568 }, { "name": "aqua-calc branded record UPC 869982000008 (Classic Caraway)", "ref": "Third branded record shows 148 g per metric cup, equivalent to 140 g per US cup (4.9 oz/US cup) and density 0.592 g/mL. Sits between the mid-branded cluster and King Arthur's figure.", "density_g_per_ml": 0.592 }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "KA publishes caraway seeds at 2 tablespoons = 5/8 oz = 18 g. Extrapolated to a full US cup this yields 141-144 g (5 oz using the ounce figure, 144 g using the gram figure). Density approximately 0.609 g/mL. Aligned with the retail branded camp, not with USDA. NOT flagged as a correction — KA sits within the observed commercial cluster confirmed by three independent branded UPC records.", "density_g_per_ml": 0.6086 } ], "verified": "2026-09-23", "last_reviewed": "2026-09-23" } ], "yields": [], "notes": "Caraway seeds sit in a wide cup-density range because measurement method and seed condition drive substantial variance across published sources: USDA anchors the low end near 107 g/cup, while King Arthur and multiple branded UPC records cluster at 134-144 g/cup. The 34.6% spread is real commercial and methodological variance, not a correction target for any single source.\n\nCaraway (Carum carvi) is a member of the Apiaceae family, alongside coriander, fennel, cumin, dill, and anise. The \"seed\" is technically a schizocarp — a small dry fruit that splits at maturity into two crescent-shaped mericarps, each roughly 2 mm long with characteristic longitudinal ridges. Kitchen \"caraway seed\" is these mericarps, sometimes still paired at packaging, sometimes fully separated by handling and shipping. The mericarp shape matters for cup density: elongated crescent seeds nest and lock together to different degrees depending on how they were poured, how much they were tapped or vibrated, and whether the mericarps remain intact or have separated.\n\nThe data splits into two clusters. USDA SR Legacy publishes 113 g per metric cup (107 g/US cup, density 0.452 g/mL); Chef's Resources tabulates 4.10 oz/cup (116 g). These are the low-density anchor. On the high side, three aqua-calc branded UPC records show 134-140 g/cup, and King Arthur's ingredient weight chart extrapolates to 141-144 g/cup based on a 2-tablespoon measurement (5/8 oz = 18 g). Roughly a 30% gap between the two camps.\n\nTwo mechanisms plausibly explain the split. First, settling: the USDA measurement is likely a poured-and-leveled sample where crescent mericarps rest at maximum void space, while retail labels and KA may reflect measurements taken from bag-settled material where seeds have jostled into denser configurations during shipping and shelf life. Second, mericarp state: intact double-mericarp schizocarps pack differently than fully separated individual crescents, and no source specifies which state was measured. Both effects likely combine.\n\nFor validation and internal consistency, this entry withholds a single figure and publishes the observed range 107-144 g/cup. King Arthur at 144 is not flagged as a correction — it sits within the retail branded cluster and is confirmed by three independent aqua-calc UPC records. USDA is not flagged either — it may reflect a lab-controlled loose-fill measurement that retail packaging never replicates.\n\nPractical guidance: for baking accuracy, weigh caraway seeds rather than measure by volume. A common baker's default of ~120-130 g/cup falls between the two camps and works for most recipe scaling, but any single number will be off by 15-20% for one or the other end of the observed range. Recipes that call for 1-2 teaspoons of caraway (typical for rye bread, seed cake, sauerkraut, goulash, Irish soda bread) sit in the sub-tablespoon range where absolute mass variance is small enough not to matter. Bulk conversions (e.g., scaling a commercial rye formula) benefit from weighing.\n\nFor the ground form: expect ground caraway to be denser than whole, in the same direction as coriander. Both are Apiaceae schizocarps with hollow fruit cavities that collapse under grinding. Chef's Resources tabulates ground caraway at ~142 g/cup, close to the whole-seed high end and consistent with this prediction. This is the opposite of the mustard-cumin pattern (solid seeds that pack tighter than their ground powder)." }, { "id": "carrots-grated", "schema_version": 3, "name": "Carrots, grated", "synonyms": [ "grated carrots", "shredded carrots", "carrots shredded", "grated carrot", "shredded carrot" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, loosely packed", "density_g_per_ml": null, "range_min": 0.4185, "range_max": 0.5495, "withheld": true, "withheld_reason": "Grated carrot density spans 99-130 g/cup depending on grate coarseness and packing pressure, a 31% spread driven by real physical variance rather than measurement error. Fine grates produce denser packing than coarse grates (10-15% difference at equivalent packing); loose vs. moderately-pressed measurements can differ by 20-30% within the same grate size. No single value defensibly serves all measurement conventions.", "sources": [ { "name": "King Arthur Baking Company – Ingredient Weight Chart", "ref": "1 cup = 3 1/2 oz = 99 g. KA publishes as a single figure at the low end of the modern reference range, consistent with a coarse loose spoon-and-level measurement. Not wrong — represents one legitimate measurement convention — but not the value most bakers will hit when they scoop grated carrot into a cup with normal enthusiasm.", "density_g_per_ml": 0.4185 }, { "name": "USDA FoodData Central – Carrots, raw (grated) via aqua-calc density table", "ref": "116 g per metric cup (250 mL), giving approximately 110 g per US cup at a density of 0.464 g/mL. Standard USDA density reference used by most cooking aggregators as the baseline for grated carrot conversions.", "density_g_per_ml": 0.465 }, { "name": "CupOrGram baking conversion database", "ref": "110 g/cup loosely packed, 130 g/cup firmly packed. CupOrGram explicitly documents the packing spread and notes that 'American baking recipes most often mean loosely packed unless they specify otherwise,' while cautioning that the 20-gram difference between loose and packed measurements is enough to noticeably affect moisture, texture, and baking time in carrot cake.", "density_g_per_ml": 0.5495 }, { "name": "Grams to Cups baking calculator (aggregator)", "ref": "110 g/cup medium-grated as standard; notes fine zester or small-hole grater can push weight to 125 g/cup due to tighter packing, while coarsely grated may drop to 95-100 g/cup — the same physical range documented by other sources but attributing more of the variance to grate size than to packing pressure.", "density_g_per_ml": 0.465 } ], "verified": "2026-09-22", "last_reviewed": "2026-09-22" } ], "yields": [], "notes": "Grated carrots weigh 99-130 g/cup depending on grate coarseness and packing pressure. King Arthur's chart sits at the low end (99 g/cup, representing a coarse loose measurement), USDA and most aggregators cluster at the standard 110 g/cup, and firmly packed measurements can reach 130 g/cup.\n\nCarrots are dense root vegetables (about 88% water, 12% cellulose and sugars), and grating them creates a mass of thin strips with substantial void space between the pieces. How much air ends up in a cup measurement depends on two independent factors that combine multiplicatively: the size of the grater holes, and how firmly the shreds get pressed into the cup.\n\nKing Arthur has this at 99 g/cup on their weight chart, and unlike many entries in this catalog, no correction is warranted here. KA's figure represents a defensible loose spoon-and-level measurement of coarsely grated carrot — it just happens to be at the low end of what home bakers actually produce when they follow a recipe. The USDA standard of 110 g/cup sits about 11% higher, reflecting a slightly more compact conventional loose measurement, and CupOrGram's firmly-packed 130 g/cup sits 31% above KA and represents what happens when a baker presses the shreds down with the back of a spoon.\n\nThe two independent variance factors matter differently in different recipes. For carrot cake, morning glory muffins, and quick breads, the recipe wants moisture as much as it wants fiber, so a firm pack that includes more carrot flesh per cup shifts the batter toward wetter and denser. Coarse-grated carrots also release water more slowly during baking than fine-grated, which affects how the batter behaves in the oven. For coleslaw, carrot fritters, and other savory applications, the moisture-vs-fiber tradeoff matters less and the coarse-vs-fine choice is driven by texture preference.\n\nPre-shredded bagged carrots (sold in grocery produce sections) run drier and coarser than freshly-grated whole carrots; they measure closer to 100-105 g/cup and behave differently in baking because they have already lost some surface moisture during packaging and refrigeration. Recipes tested with fresh grated should be weight-scaled if substituting bagged shreds.\n\nPractical guidance: for baking recipes that specify grated carrots in cups without a gram weight, 110 g/cup is the most defensible middle-of-range assumption for standard loose measurement. If a recipe specifies 'packed' grated carrots, use 130 g/cup. If the recipe was tested against a specific brand or grate size, that gram figure is more reliable than any general conversion. For carrot cake specifically, a 10-15% variance in carrot amount affects moistness noticeably but is rarely catastrophic — carrot cake is a forgiving recipe, and the water content of the carrots themselves also varies by season and storage, which recipes accommodate by design.\n\nSubstitutions for grated carrots in baking: shredded zucchini works closely (see zucchini-shredded entry — that ingredient runs 121-150 g/cup with much more water content), producing a similar moist crumb but without carrot's color and mild sweetness. Grated apple substitutes 1:1 by volume in some quick breads but shifts moisture release timing during baking. Grated parsnip works 1:1 by weight in savory applications but is starchier and less sweet than carrot." }, { "id": "cashews-whole", "schema_version": 3, "name": "Cashews (whole)", "synonyms": [ "whole cashews", "raw cashews", "roasted cashews", "cashew nuts whole", "unsalted cashews" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, whole cashews loose in the cup (raw or roasted)", "density_g_per_ml": null, "range_min": 0.4776, "range_max": 0.579, "withheld": true, "withheld_reason": "King Arthur and USDA disagree by 21%, over the 10% milled tolerance, and the disagreement reflects a genuine raw-versus-roasted state difference rather than measurement error. King Arthur publishes 113 g/cup for the unspecified 'whole' state (likely measuring raw or a mixed sample), while USDA measures 137 g/cup for dry-roasted whole and 129 g/cup for oil-roasted whole cashews. Roasted cashews pack denser because roasting shrinks the individual nut, hardens the surface, and reduces the interstitial air pockets between adjacent nuts. This entry publishes the range 113-137 g/cup rather than choosing one state.", "sources": [ { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Cashews (whole)', 1 cup (113 g/cup). Density 0.4776 g/mL. KA does not specify whether this figure represents raw or roasted cashews. The value sits well below USDA analytical figures for roasted cashews, suggesting KA is measuring raw or lightly-roasted whole cashews with more interstitial air. KA lists both 'whole' and 'chopped' cashews at the same 113 g/cup, reflecting the fact that cashews' crescent shape makes their packing density relatively insensitive to whether pieces are whole or chopped.", "density_g_per_ml": 0.4776 }, { "name": "USDA FoodData Central", "ref": "Nuts, cashew nuts, dry roasted, without salt added (SR Legacy, FDC ID 170571). Published: 1 cup, halves and whole = 137 g. Density 0.5790 g/mL. The related oil-roasted record (FDC 170572) publishes 1 cup whole = 129 g (density 0.5452 g/mL). The raw cashews record (FDC 170162) publishes no cup portion, only 100 g and 1 oz. Commercial packages of raw whole cashews typically label 1/4 cup = 30 g (120 g/cup), landing between the KA and USDA-roasted figures and consistent with the interpretation that KA measures raw.", "density_g_per_ml": 0.579 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Whole cashews publish as a range 113 to 137 grams per cup because the authoritative sources disagree by 21%, well over the 10% milled tolerance, and the disagreement reflects a genuine state difference between raw and roasted cashews rather than measurement error. King Arthur publishes 113 g/cup for unspecified 'whole' cashews. USDA publishes 137 g/cup for dry-roasted whole cashews (SR Legacy 170571) and 129 g/cup for oil-roasted whole cashews (SR Legacy 170572). The USDA raw cashews record does not publish a cup portion. Commercial retail packages of raw whole cashews typically label 1/4 cup as 30 g, which computes to 120 g/cup and sits between the KA and USDA-roasted figures, consistent with the interpretation that KA is measuring the raw or lightly-processed state.\n\nThe physics behind the raw-versus-roasted difference is worth understanding. A raw cashew is a smooth, curved kidney-shape with a slightly waxy surface. When you pour raw cashews into a cup, the curved surfaces slide past each other and settle with substantial air gaps between adjacent nuts. Roasting changes this: the nut shrinks slightly as internal moisture evaporates (raw cashews contain about 5% water, roasted about 2%), and the surface becomes rougher and slightly crackled from heat exposure. The shrinkage means more nuts fit per cup, and the rougher surface means adjacent nuts interlock rather than sliding smoothly past each other. Both effects push density upward. Dry-roasted cashews at 137 g/cup are 21% denser than raw at 113 g/cup, and oil-roasted at 129 g/cup sit between them because the oil coating restores some surface smoothness that offsets the roughening.\n\nOne unusual observation from King Arthur's chart deserves flagging: KA lists both 'Cashews (whole)' and 'Cashews (chopped)' at exactly 113 g/cup. For most nuts, chopping increases density noticeably because the smaller pieces fit into the interstitial gaps that whole nuts leave behind (walnut whole vs chopped on the site differs by roughly 10%). Cashews are the exception because their C-shape or kidney-shape already packs relatively densely as whole nuts, without the large interstitial voids that make chopped almonds or walnuts pack tighter than their whole counterparts. Chopping a cashew doesn't gain much interstitial fill because the whole cashews weren't leaving much interstitial space to fill in the first place. This is why KA rounds both states to the same figure, and why our chopped entry (also at 113 g/cup) is not a duplication error but a genuine reflection of cashew geometry.\n\nCompared to the other whole nuts on the site, cashews at 113-137 g/cup sit in the middle of the density band. Almonds whole at 143 g/cup are denser (smaller, tighter packing), walnuts halves at 100 g/cup are lighter (larger, more air), pecans halves at 99 g/cup are lighter still, and hazelnuts whole at 135 g/cup are similar to cashews. The pattern is that smaller, rounder, denser-per-nut varieties (almonds, hazelnuts) pack densely, while larger, more irregular varieties (walnuts, pecans) pack loosely.\n\nCategory assignment is milled, matching all other whole nuts on the site. Whole nuts belong in milled because they are fatty solid pieces that pack in geometric arrangement rather than as small crystalline particulates. The sugar category is reserved for sugars, salts, chocolate chips, and small dried fruits.\n\nConfidence is low because the two authoritative sources describe different states (raw vs roasted) and disagree by 21%. Bakers should treat the middle of the range (around 125 g/cup) as reasonable for generic whole cashews when they don't know the state, weigh 113-115 g/cup if using specifically raw whole cashews, and 129-137 g/cup if using roasted. When precision matters, weigh the specific cashews in hand rather than trusting a single generic figure." }, { "id": "cassava-flour", "schema_version": 3, "name": "Cassava Flour", "synonyms": [ "yuca flour", "yucca flour", "farinha de mandioca", "manioc flour", "whole cassava flour", "grain-free flour", "paleo flour" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": null, "range_min": 0.5072, "range_max": 0.5918, "withheld": true, "withheld_reason": "Grind fineness varies across brands. Terrasoul and Pereg at 120 g/cup (30g per 1/4 cup), Otto's Naturals at 128 g/cup (32g per 1/4 cup, most-referenced in gluten-free recipe development), Bob's Red Mill at 140 g/cup (35g per 1/4 cup, coarser grind). 17% spread exceeds 10% milled tolerance.", "sources": [ { "name": "Bob's Red Mill Cassava Flour nutrition label", "ref": "1/4 cup (35g) per label. 140 g/cup. Coarser grind than Otto's or Terrasoul.", "density_g_per_ml": 0.5918 }, { "name": "Otto's Naturals Cassava Flour nutrition label", "ref": "1/4 cup (32g) per label. 128 g/cup. Otto's launched the first widely-available branded cassava flour in the US in 2014 and is the most-referenced brand in gluten-free and paleo recipe development.", "density_g_per_ml": 0.541 }, { "name": "Terrasoul Superfoods Organic Cassava Flour nutrition label", "ref": "1/4 cup (30g) per label. 120 g/cup. Lower end of the range.", "density_g_per_ml": 0.5072 }, { "name": "Pereg Cassava Flour nutrition label", "ref": "1/4 cup (30g) per label. 120 g/cup. Matches Terrasoul figure.", "density_g_per_ml": 0.5072 }, { "name": "Power Hungry blog independent brand survey", "ref": "Baker Kittee's independent comparison of five cassava flour brands (Bob's Red Mill, Thrive, Otto's, Terrasoul, Anthony's) documented 1/4 cup weights ranging 30-35g, giving 120-140 g/cup across the retail market. Recommends 128 g/cup as the practical middle for recipe conversion.", "density_g_per_ml": 0.541 } ], "verified": "2026-09-22", "last_reviewed": "2026-09-22" } ], "yields": [], "notes": "TL;DR: Cassava flour ranges 120-140 g/cup across brands, with the practical middle at 128 g/cup, but the critical baker distinction is between cassava flour (whole ground root, structure-building) and tapioca starch (extracted starch only, thickening and chewiness). Same plant, completely different behavior.\n\nCassava flour is the whole cassava root (Manihot esculenta, also called yuca) peeled, dried, and finely ground into a tan powder. Its rise to prominence as a gluten-free, grain-free, and paleo baking flour started around 2014 when Otto's Naturals launched the first widely-available branded cassava flour in the US market. Bakers use it for grain-free breads, tortillas, pizza crusts, cookies, muffins, and pancakes, often as a 1:1 substitute for wheat flour in simpler recipes (though yeasted breads generally require a starch blend for proper rise).\n\nDensity spans 120-140 g/cup depending on brand grind fineness. Independent verification by the Power Hungry baking blog compared five brands: two labeled 30g per 1/4 cup, two labeled 32g per 1/4 cup, one labeled 35g per 1/4 cup. That works out to a 120-140 g/cup range across the retail cassava flour market, a 17% spread that exceeds typical flour tolerances. Individual brand figures: Bob's Red Mill 140 g/cup (35g per 1/4 cup, coarser grind), Otto's Naturals 128 g/cup (32g per 1/4 cup, the dominant premium brand and most-referenced in recipes), Terrasoul Superfoods 120 g/cup (30g per 1/4 cup), Pereg 120 g/cup, Anthony's roughly 124 g/cup. King Arthur's Ingredient Weight Chart does not list cassava flour, leaving conversions unstandardized across recipe sources.\n\nThe critical distinction is that cassava flour is not tapioca starch. Both come from the same cassava root, but they are physically and functionally different products. Cassava flour (this entry, 120-140 g/cup) is the whole peeled root, dried, and ground. It includes fiber, protein, and root solids, has a tan color, and mild nutty flavor. Its packing density is similar to wheat flour, and it behaves as a structure-building flour that can substitute close to 1:1 for wheat flour in many quick breads and simple baked goods. Tapioca starch (existing entry, 113 g/cup) is only the extracted starch from cassava root, with fiber and root solids removed. It is white, has no flavor, and lower density (pure starch granules). It behaves as a thickener and chewiness-adder like cornstarch or arrowroot and never substitutes for cassava flour or wheat flour on its own.\n\nThe confusion is worsened by inconsistent labeling. Many US brands sell tapioca starch as tapioca flour, which is technically correct but leads home bakers to grab tapioca starch when a recipe calls for cassava flour. Brazilian and Latin American brands sometimes go further, calling cassava flour tapioca flour as well. Two products called tapioca flour, the extracted starch and the whole root, can have wildly different behaviors in the same recipe.\n\nPhysical density confirms the distinction: cassava flour at 120-140 g/cup packs similarly to wheat flour (120 g/cup) because both contain fiber and non-starch solids. Tapioca starch at 113 g/cup is lower because pure starch granules pack tighter but weigh less per volume than fiber-containing flour.\n\nPractical baker recommendation: if a recipe calls for cassava flour, buy a package labeled cassava flour specifically, not tapioca flour (which will be pure starch and behave differently). Otto's Naturals is the most-referenced brand in gluten-free and paleo recipe development, so recipes that don't specify a brand were likely tested with Otto's at 128 g/cup. If using Bob's Red Mill (140 g/cup, coarser grind), consider reducing the volume slightly or increasing liquid to compensate for the higher mass per cup. Weigh by scale for any recipe that requires precision." }, { "id": "cherries-fresh", "schema_version": 3, "name": "Cherries (fresh, pitted)", "synonyms": [ "fresh cherries", "cherries", "pitted cherries", "sweet cherries", "cherries pitted chopped", "cherries fresh pitted", "bing cherries", "dark sweet cherries" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, pitted (whole or chopped) loose in the cup", "density_g_per_ml": 0.6509, "sources": [ { "name": "USDA FoodData Central", "ref": "Cherries, sweet, raw (SR Legacy, FDC ID 171719). Published: 1 cup without pits = 154 g. Density 0.6509 g/mL. The same record also publishes 1 cup with pits yields = 138 g, meaning that measuring a cup of unpitted cherries and then removing the pits leaves 138 g of edible flesh. Confirmed by commercial nutrition labels: Dole and WinCo both use 154 g per cup on their pitted cherry products.", "density_g_per_ml": 0.6509 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Cherries (fresh, pitted, chopped)', 1/2 cup (80 g/half cup, 160 g/cup). Density 0.6763 g/mL. KA specifies the chopped state, which packs about 3.9% denser than USDA's pitted whole state, well within the 10% milled tolerance.", "density_g_per_ml": 0.6763 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Fresh sweet cherries publish at 154 grams per cup pitted, with two authoritative sources in close agreement. USDA SR Legacy record 171719 (Cherries, sweet, raw) publishes 154 g/cup measured as pitted whole cherries loose in the cup, giving density 0.6509 g/mL. King Arthur's Ingredient Weight Chart publishes 160 g/cup for the fresh, pitted, chopped state, giving density 0.6763 g/mL. The 3.9% gap between them is well inside the 10% milled tolerance and reflects the small density gain from chopping already-small round fruit.\n\nChopping adds less density gain for cherries than it does for larger fruits like peaches or pears. A cherry is already a small (~2 cm) round fruit that packs fairly densely as whole, with the pit-cavity leaving only a small internal air pocket after pitting. Chopping the pitted cherry into halves or smaller pieces helps fill some interstitial space between the whole pieces, but the density gain is modest because the whole cherries were already close to a natural packing limit. Compare this to the peaches-fresh entry where dicing gained about 10% density over slicing, and the strawberries-sliced entry where slicing gained 15% over whole. Small round starting shapes benefit less from cutting than large irregular ones do.\n\nUSDA's parallel publish of 'with pits yields 138 g' is a useful data point most bakers never see. It says that if you measure 1 cup of unpitted sweet cherries and then pit them, you end up with 138 g of edible flesh. That is a ~10% loss to pits (pits account for 10-15% of unpitted cherry mass). A baker with unpitted cherries can therefore estimate: to get 1 cup pitted, start with about 1.1 cups unpitted (which yields ~154 g of flesh after pitting matches the 1-cup-pitted measurement).\n\nSweet cherries (Bing, Rainier, dark sweet) and sour cherries (Montmorency) have similar packing density despite very different flavor profiles. USDA's separate record for 'Cherries, sour, red, raw' publishes a similar cup portion (about 155 g/cup without pits), so this entry applies reasonably well to tart cherries too. The 63 kcal/100g figure for sweet cherries is higher than sour (50 kcal/100g), reflecting sugar content, but that composition difference does not move the packing density much.\n\nKing Arthur's chart contains three other cherry states worth flagging for comparison. Candied cherries at 200 g/cup are the densest (concentrated sugar syrup adds mass), dried cherries at 142 g/cup are lighter than fresh (water loss shrinks the piece but the piece stays small enough to pack tightly), and frozen cherries at 113 g/cup are the lightest of the cherry family because frozen cherries are whole and loose in the cup rather than chopped, so the interstitial air gaps between whole cherries dominate. The frozen-vs-fresh pattern here (113 vs 160) is the same physics as the strawberries whole-vs-sliced pattern (144 vs 166): cutting a small round fruit into pieces meaningfully increases cup density.\n\nCategory assignment is milled, following the fresh fruit precedent established by blueberries-fresh, raspberries-fresh, cranberries-fresh, and the fresh cut fruit entries (apple-slices, pineapple-diced, strawberries-sliced, peaches-fresh, pears-fresh). Fresh whole small pitted fruits belong in milled rather than sugar because they are water-containing solid pieces (86% water for sweet cherries) whose packing depends on shape and fill method rather than crystal structure. Dried cherries and candied cherries, when eventually added, will belong in sugar because the water loss concentrates them into small dense sweet particulates similar to raisins and currants.\n\nConfidence is medium. Two authoritative sources (USDA SR Legacy and King Arthur) agree at 3.9%, well within tolerance. The published figure of 154 g/cup reflects USDA's direct portion for pitted whole cherries and closely matches KA's 160 g/cup for the chopped state. Bakers can use 154 g/cup for pitted whole and expect slightly higher (up to ~160 g) if they chop before measuring." }, { "id": "cherries-frozen", "schema_version": 3, "name": "Cherries (frozen, pitted)", "synonyms": [ "frozen cherries", "frozen pitted cherries", "frozen dark sweet cherries", "frozen tart cherries", "frozen sour cherries", "IQF cherries" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Pitted, measured frozen", "density_g_per_ml": 0.6551, "range_min": null, "range_max": null, "sources": [ { "name": "USDA SR Legacy \"Cherries, sour, red, frozen, unsweetened\" (FDC 171718)", "ref": "USDA Standard Release (NDB 09068) publishes 1 cup, unthawed = 155 g (density 0.655 g/mL). Water 87.2 g per 100 g. Read through getfoodfacts (FDC ID, composition) and ReciPal (NDB 9068, portion).", "fdc_id": 171718, "density_g_per_ml": 0.6551 }, { "name": "USDA Food Buying Guide for Child Nutrition Programs, Fruits yield table", "ref": "Cherries, red tart, frozen, unsweetened, pitted: 11.40 servings of \"1/4 cup thawed, fruit and liquid\" per pound, and \"1 lb AP = 0.98 lb (about 2-3/4 cups) thawed cherries and liquid\": 453.6 g / 2.85 cups = 159 g per cup (density 0.673 g/mL). Drained, the same pound gives \"about 1-3/4 cups\" of fruit. A separate set of USDA yield tests from the Standard Reference record.", "density_g_per_ml": 0.6727 }, { "name": "USDA SR Legacy \"Cherries, sweet, raw\" (FDC 171719)", "ref": "For comparison: 1 cup without pits = 154 g (0.651 g/mL), the figure this site publishes for fresh pitted cherries. Fresh and frozen pitted cherries fill a cup alike; not counted as a separate source for the frozen figure.", "fdc_id": 171719 }, { "name": "Dole Frozen Dark Sweet Cherries (producer label)", "ref": "Label serving 1 cup (140 g), about 2.5 servings per 12 oz (340 g) bag; Wyman's and Great Value print the same 1 cup (140 g). 140 g is the FDA reference amount for frozen fruit printed beside the nearest household measure, so it is kept without a figure; a cup weighing 113 g would have made 140 g about 1 1/4 cups." }, { "name": "King Arthur Baking recipe, Sour Cherry Pie", "ref": "\"5 to 6 cups (1125g to 1350g) sour cherries, packed in water or individually quick frozen\", 225 g per cup, with frozen cherries used without thawing. Twice King Arthur's chart figure for frozen cherries; heavier than whole cherries can pack without liquid (0.95 g/mL), so it reads as a canned-cherry weight. Kept without a figure." }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "KA lists \"Cherries (frozen)\" at 1 cup = 4 oz = 113 g, density 0.478 g/mL.", "density_g_per_ml": 0.4776, "rejected": true, "rejection_reason": "A frozen cherry weighs about 1 g/mL, so a cup at 113 g would be less than half cherry and more than half air. Whole, roughly round fruit poured into a cup fills 60 to 65% of it: USDA weighs a cup of unthawed frozen tart cherries at 155 g and a cup of fresh pitted sweet cherries at 154 g, and USDA's Food Buying Guide yields 159 g per cup thawed with the juice. King Arthur's own Sour Cherry Pie recipe uses 225 g per cup of frozen or water-packed cherries, twice its chart figure. 113 g is a round 4 oz that matches no measurement." } ], "verified": "2026-10-29", "last_reviewed": "2026-10-29" } ], "yields": [], "notes": "A cup of frozen pitted cherries weighs 155 g (5.5 oz), a density of 0.66 g/mL, measured frozen. USDA weighs a cup of unthawed frozen tart cherries at 155 g, and its Food Buying Guide yields 159 g per cup once they are thawed with their juice. King Arthur's 113 g would leave more than half the cup empty and is rejected.\n\nFrozen cherries are pitted cherries frozen individually, sold as dark sweet cherries by Dole, Wyman's and most store brands, and as red tart (sour, Montmorency) cherries for pies. Unsweetened frozen cherries are the fruit alone. Sugar-packed frozen cherries, sold mostly to food service, come in syrup and weigh far more per cup once thawed: USDA lists 259 g for thawed sweetened sweet cherries.\n\nUSDA's Standard Reference record for frozen unsweetened red tart cherries (FDC 171718) gives 1 cup, unthawed, as 155 g, with 87.2% water. The USDA Food Buying Guide for child nutrition programs, a separate set of yield tests, gives a pound of the same frozen cherries as 11.40 quarter-cup servings of thawed fruit and liquid, about 2 3/4 cups, 159 g per cup. The two agree within 3%. Thawing changes the cup weight little because the juice that runs out fills the gaps the softened fruit leaves.\n\nFresh cherries give the same answer: USDA weighs a cup of pitted fresh sweet cherries at 154 g, the figure this site publishes for fresh cherries. Freezing barely changes a cherry's size or shape, so frozen and fresh pitted cherries fill a cup alike.\n\nFrozen fruit labels are no help: Dole, Wyman's and Great Value all print 1 cup (140 g), but 140 g is the FDA reference amount for frozen fruit, printed beside the nearest household measure. Even so, if a cup weighed 113 g, those labels would have printed 140 g as about 1 1/4 cups.\n\nKing Arthur's ingredient weight chart lists frozen cherries at 1 cup = 4 oz = 113 g, 0.48 g/mL. A frozen cherry weighs roughly 1 g/mL, so a cup at 113 g would be less than half cherry and more than half air. Whole, roughly round fruit poured into a cup fills about 60 to 65% of it, which is what USDA's 155 g shows. King Arthur's own Sour Cherry Pie recipe, which uses frozen or water-packed tart cherries, calls for 5 to 6 cups weighing 1125 to 1350 g, 225 g per cup: twice the chart's figure, and closer to canned cherries with their liquid. The chart's 113 g, a round 4 oz, is rejected.\n\nPractical guidance: measure frozen cherries while frozen and use 155 g per cup, 78 g per half cup. A 12 oz (340 g) bag holds about 2 1/4 cups and a 32 oz (907 g) bag nearly 6 cups, about one pie's worth. If you thaw and drain the cherries first, the cups shrink: the Food Buying Guide's pound gives about 2 3/4 cups with the juice but only 1 3/4 cups drained. Weigh before thawing, or weigh the drained fruit when a recipe gives grams." }, { "id": "chia-seeds", "schema_version": 3, "name": "Chia seeds", "synonyms": [ "whole chia", "raw chia seeds", "black chia", "white chia", "salvia hispanica seeds" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, whole dried seeds loose in the cup", "density_g_per_ml": null, "range_min": 0.6255, "range_max": 0.7101, "withheld": true, "withheld_reason": "Two sources disagree by 13.5%, over the 10% milled tolerance. USDA's SR Legacy record for chia (FDC 170554) publishes per-100g data only, with no direct cup portion. The 168 g per cup figure comes from USDA FNDDS (FDC 2707590), a dietary-survey standardized measure rather than a direct laboratory portion. King Arthur publishes 148 g per cup with no method documented. This entry publishes the range rather than picking one figure until USDA SR Legacy or Foundation Foods publishes a direct cup portion for chia.", "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 2707590, Chia seeds (FNDDS). Published: 1 cup = 168 g. Density 0.7101 g/mL. Note: USDA SR Legacy FDC 170554 (Seeds, chia seeds, dried) publishes only per-100g nutrient data and has no direct cup portion; the 168 g figure is USDA's FNDDS standardized measure used for national dietary intake studies.", "density_g_per_ml": 0.7101 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Chia seeds', 1/4 cup = 37 g (148 g/cup). Density 0.6255 g/mL.", "density_g_per_ml": 0.6255 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Two sources 13.5 percent apart, outside the 10 percent milled tolerance, so this entry publishes the range rather than a single figure. King Arthur's Ingredient Weight Chart lists 'Chia seeds' at 1/4 cup = 37 g, extrapolating to 148 g per cup and 0.6255 g/mL. USDA FoodData Central lists chia at 168 g per cup, implying 0.7101 g/mL, but with an important sourcing caveat: USDA's SR Legacy record for chia (FDC 170554) publishes only per-100g nutrient data and has no direct cup portion. The 168 g figure is drawn from USDA FNDDS (FDC 2707590), a standardized dietary-survey measure used for national intake studies. FNDDS is authoritative USDA data but its portions are standardized estimates rather than direct laboratory measurements of the specific food.\n\nThe FNDDS figure of 168 g per cup is identical to USDA's figure for whole flaxseed, which sits in another entry on this site as the upper end of a 140 to 168 g range publish. Whether this coincidence reflects a real similarity in the packing behavior of small hard seeds (both chia and flaxseed being small ovoid seeds under 6 mm) or a shared FNDDS standardization convention is unclear from the published documentation. Third-party aggregators including cookconvertapp, cuporgram and gramsinacup largely cite 168 to 170 g per cup, suggesting the FNDDS figure has become the working consensus in the aggregator ecosystem regardless of its methodological basis.\n\nChia seeds are exceptionally small: approximately 2.1 mm by 1.3 mm by 0.8 mm on average, with individual seed masses around 1.3 mg. Small hard particles typically pack denser than large ones because they fill gaps more efficiently, and chia at 168 g per cup (density 0.7101 g/mL) is physically consistent with what would be expected from that geometry. King Arthur's lower figure at 148 g per cup (density 0.6255 g/mL) is consistent with a loose scoop rather than a settled fill. As with flaxseed on this site, small hard seeds are unusually sensitive to fill technique, and gaps of 15 to 20 percent between different filling methods are physically real.\n\nProduct variants: black chia and white chia are cultivar-color variants that pack at essentially the same density and are treated as one entry here. Salvia hispanica is the primary commercial species; Salvia columbariae, sometimes marketed as golden chia, is a distinct North American species with slightly different seed size but no separate authoritative cup portion available. Ground chia seed, sometimes called chia meal, packs differently from whole seeds and is not covered here because King Arthur does not list a ground variant. Third-party sources suggest ground chia packs at approximately 175 to 185 g per cup, denser than whole seeds because the ground particles fill some of the interseed voids, but this pattern is the opposite of what flaxseed shows on this site and remains uncertain without direct measurement.\n\nChia seeds are placed in the milled category alongside other whole seeds, whole grains and whole nuts. The category rule tracks physical packing behavior: whole seeds pack by scoop with air gaps in the same way as whole grains and nuts. The 10 percent category tolerance applies here, and the 13.5 percent observed gap likely reflects a combination of fill-method sensitivity and USDA's use of a standardized rather than direct-measurement portion.\n\nNo standards body publishes a bulk density for chia. Codex Alimentarius has no dedicated standard for chia at the time of publication. Two authoritative sources with an over-tolerance gap and one source relying on a standardized USDA estimate rather than direct measurement, so this entry is held at low confidence and range-published until USDA SR Legacy or Foundation Foods publishes a direct cup portion or a third independent laboratory measurement clears the disagreement.", "last_reviewed": "2026-09-21" }, { "id": "chickpea-flour", "name": "Chickpea flour", "aliases": [ "besan", "gram flour", "garbanzo bean flour", "chana flour" ], "category": "milled", "schema_version": 3, "confidence": "medium", "default_state": "standard", "states": [ { "id": "standard", "label": "Standard", "density_g_per_ml": 0.3889, "verified": "2026-09-17", "last_reviewed": "2026-09-17", "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 174288 (Chickpea flour, besan, SR Legacy). Published: 1 cup = 92 g. Density 0.3889 g/mL. Composition: ~10% water, ~58% carbohydrate (of which ~11% fibre), ~22% protein, ~7% fat.", "density_g_per_ml": 0.3889 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Chickpea flour', 1 cup = 85 g, density 0.3593 g/mL.", "density_g_per_ml": 0.3593 } ] } ], "yields": [], "notes": "Chickpea flour is milled from dried chickpeas (Cicer arietinum), also called garbanzo beans. It is one of the oldest pulse flours in continuous use, dating back several thousand years in Indian, Middle Eastern and Mediterranean cooking, and has re-entered mainstream American cooking through the popularity of gluten-free baking and interest in higher-protein plant flours.\n\nUSDA FoodData Central publishes 1 cup of chickpea flour (besan) at 92 grams (FDC 174288), giving a bulk density of 0.3889 grams per millilitre. King Arthur's ingredient weight chart publishes the same product at 85 grams per cup and 0.3593 grams per millilitre. The two figures agree within 7.9 percent, inside the 10 percent tolerance we apply to the milled category, though not tightly enough that a home baker measuring by cup can ignore which source their recipe used.\n\nChickpea flour is one of the lightest flours by volume in this dataset, roughly two-thirds the weight of all-purpose flour per cup. This is characteristic of pulse flours: legume flours in general (chickpea, lentil, fava, pea) mill into softer, bulkier powders than cereal flours because the protein and starch structure of a legume seed is different from a wheat grain. The high protein content (about 22 percent by weight, roughly double that of all-purpose flour) is another marker — it explains why chickpea flour holds together in batters without needing gluten to bind.\n\nRegional names for chickpea flour reflect its long history in different cuisines. Besan is the standard Indian name and usually refers to flour milled from chana dal (split brown chickpeas), producing a slightly coarser, more yellow flour. Gram flour is the British usage, most often the same product. Garbanzo bean flour is the American name, typically for flour milled from the pale yellow chickpea (kabuli variety) rather than the darker brown desi variety used in most Indian production. All three names cover essentially the same ingredient for cooking purposes, though a purist might distinguish besan (from desi chickpeas) as slightly more flavourful than garbanzo bean flour (from kabuli).\n\nCulinary uses vary widely. In Indian cooking, chickpea flour is the basis for pakora batter (fried vegetable fritters), boondi and ladoo (sweet fried droplets), besan chilla (savoury pancakes), and thickening for many curries. In the Mediterranean, it is the flour for socca and farinata (crisp Provençal-Ligurian flatbreads baked in a hot oven), and for panisse (fried chickpea polenta). In gluten-free baking, it is common in flour blends to add protein, structure and a slightly nutty flavour.\n\nRelated products this entry does not cover: sattu is roasted chickpea flour, a distinct Indian ingredient made from pre-roasted chana dal that is measured similarly but has a toasted flavour and is not interchangeable in recipes that expect raw chickpea flour; lentil flour, fava bean flour, and other pulse flours have similar low density but different protein content and flavour; and cooked-chickpea flour, occasionally sold in specialty shops, is milled from pre-cooked chickpeas and has different water absorption than raw chickpea flour.\n\nFDA has no identity standard specific to chickpea flour; it is regulated under general food safety and labelling rules. The Codex Alimentarius standard for pulses (CXS 171-1989) covers whole and split pulses but does not address pulse flours. Neither publishes a bulk density.\n\nThe category here is 'milled' because chickpea flour behaves like other fine milled powders in a measuring cup — it clumps, bridges over air pockets, and its density depends on scoop method. The 10 percent tolerance applies, and both sources sit inside it. The relatively wide gap between them (7.9 percent) is more likely a real product variation across brands and grinds than a measurement disagreement.", "last_reviewed": "2026-09-17" }, { "id": "chopped-dates", "schema_version": 3, "name": "Chopped dates", "synonyms": [ "chopped medjool dates", "chopped deglet noor dates", "pitted chopped dates", "dates (chopped)", "khajoor" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, filled and settled, not pressed", "density_g_per_ml": 0.6214, "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 171726, Dates, Deglet Noor (SR Legacy). Published portion: 1 cup, chopped = 147 g. Density 0.6214 g/mL.", "density_g_per_ml": 0.6214 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Dates (chopped)', 1 cup = 149 g. Density 0.6298 g/mL.", "density_g_per_ml": 0.6298 } ], "verified": "2026-09-20", "last_reviewed": "2026-09-20" } ], "yields": [], "notes": "Two sources agree within tolerance. USDA FDC 171726 (Dates, Deglet Noor, SR Legacy) publishes 1 cup chopped at 147 g, implying a density of 0.6214 g/mL. King Arthur's Ingredient Weight Chart lists 'Dates (chopped)' at 149 g per cup, implying 0.6298 g/mL. The gap between them is 1.36%, well inside the 10% milled tolerance for chopped fruit, so this entry publishes USDA's figure of 147 g per cup and names both sources.\n\nKing Arthur does not distinguish between varieties. USDA maintains separate records for the two commercially significant varieties: Dates, Deglet Noor at FDC 171726 (with the cup-chopped portion cited above) and Medjool Dates at FDC 168191 (which publishes per-date weight only, at 24 g per pitted date, with no cup portion). Deglet Noor are firmer and drier, common in bulk retail and Middle Eastern markets. Medjool are larger, softer and caramel-sweet, dominant in US grocery stores today. Chopped, the density difference between them is small because chopping breaks the fruit into similar-sized pieces that pack similarly, so this entry covers both varieties and uses the USDA Deglet Noor cup portion as the reference.\n\nWhole Medjool dates weigh substantially more per date (approximately 24 g pitted) than whole Deglet Noor (approximately 7 g pitted), a 3-to-1 ratio driven by physical size rather than density. Recipes calling for a specific number of dates should specify the variety for consistency. Whole dates are not covered by this entry; a separate whole-date entry would need per-date weight data by variety and a distinct sourcing pathway.\n\nThe measurement is sensitive to pressing. Chopped dates are sticky, and pressing them into a measuring cup can add 20% or more to the mass over a loose-fill measurement. USDA's 147 g and King Arthur's 149 g both reflect a filled-and-settled cup, not a packed one. Home bakers using dates as a whole-food sweetener in energy balls, date paste, or no-bake bars should weigh rather than measure by volume: a firmly pressed cup can weigh 180-200 g, which meaningfully changes sweetness and moisture in the finished product.\n\nChopped dates sit in the milled category alongside chopped nuts. The category rule assigns chunks that pack by scoop with air gaps to milled, which fits chopped dates despite their stickiness: the pieces still leave irregular voids in a measuring cup rather than self-levelling as liquids do. The 10% category tolerance applies here, and the observed 1.36% agreement between sources is well inside it.\n\nRelated products not covered by this entry: whole Medjool dates (per-date weight documented at FDC 168191, cup-scale sourcing deferred), whole Deglet Noor dates (same status at FDC 171727 range), date paste (a puree, would sit in the liquid category with different sourcing), and date syrup (a concentrated sweetener, would sit in the syrup category). Dried dates coated with sugar or oats for anti-clumping are common in retail packages; the coating adds mass and the entry does not cover those variants.\n\nNo standards body publishes a bulk density for chopped dates. Codex Alimentarius CXS 143-1985 covers dates but specifies moisture content, defect tolerances and grading rather than physical density. Two authoritative sources agreeing within tolerance, both from independent publishers, so this entry is held at medium confidence. A third independent source (a professional culinary reference or an industry bench measurement) matching within tolerance would move it to high confidence.", "last_reviewed": "2026-09-20" }, { "id": "chopped-pecans", "name": "Chopped pecans", "synonyms": [ "diced pecans", "pecan pieces" ], "category": "milled", "schema_version": 3, "confidence": "medium", "default_state": "chopped", "states": [ { "id": "chopped", "label": "Chopped (approximately quarter-inch pieces)", "density_g_per_ml": 0.4607, "verified": "2026-09-18", "last_reviewed": "2026-09-18", "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 170182 (Nuts, pecans, SR Legacy). Published: 1 cup chopped = 109 g. Density 0.4607 g/mL. Composition: 71.9% fat, 13.9% carbohydrate, 9.2% protein, 3.5% water.", "density_g_per_ml": 0.4607 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Pecans (diced)', 1/2 cup = 57 g, extrapolates to 114 g per cup, density 0.4818 g/mL. King Arthur lists this preparation as 'diced' rather than 'chopped'; the terms describe the same knife or food-processor result.", "density_g_per_ml": 0.4818 } ] } ], "yields": [], "notes": "Chopped pecans sit in the milled category not because they are milled but because they pack by scoop the way milled powders and small pieces do. A cup of chopped pecans is what remains after whole pecan halves are broken by knife or food processor into pieces of about a quarter-inch, poured into a measuring cup, and lightly leveled. Both King Arthur Baking and USDA FoodData Central publish a figure for this preparation, and the two agree well.\n\nUSDA FoodData Central (FDC 170182, Nuts, pecans) gives 109 grams per cup for chopped pecans, which implies a density of 0.4607 g/mL on the US customary cup of 236.5882365 mL. King Arthur publishes 114 grams for the same preparation, which they list as 'diced' rather than 'chopped' though the two words describe the same knife or food-processor result. That figure implies 0.4818 g/mL. The gap between the two is 4.6%, comfortably inside the 10% tolerance this site applies to milled and packed-piece ingredients, so both figures are accepted and the USDA figure is published as the site's primary value.\n\nPecans pack slightly differently by shape. Whole pecan halves, poured loose into a cup, weigh less than chopped pieces because the halves stack with larger air gaps: USDA publishes 99 g per cup for halves, King Arthur 105 g per cup for whole. Chopping breaks the pieces into smaller units that fill the space between them more efficiently, and the cup weight rises accordingly. Very fine pieces or ground pecan meal pack tighter still, though the difference between coarse and fine chopped for baking is usually less than the 10% tolerance and does not change the published figure.\n\nThis entry is specifically for chopped pecan kernels. It does not cover pecan halves, which pack with more air gaps and weigh less per cup; pecan meal or ground pecans, which is much finer and packs denser (King Arthur gives 80 g per cup for pecan meal); or roasted, salted, or sugared pecans, which change composition and therefore density. Each of those, when sourced, will be a separate entry.\n\nThe confidence grade is medium because two independent sources agree within tolerance and both are widely used references, but no third source at a higher tier (a standards body or an independent bench measurement) confirms the figure. High confidence will require a third independent measurement.", "last_reviewed": "2026-09-18" }, { "id": "chopped-walnuts", "name": "Chopped walnuts", "synonyms": [ "walnut pieces", "chopped English walnuts" ], "category": "milled", "schema_version": 3, "confidence": "medium", "default_state": "chopped", "states": [ { "id": "chopped", "label": "Chopped (approximately quarter-inch pieces)", "density_g_per_ml": 0.4945, "verified": "2026-09-18", "last_reviewed": "2026-09-18", "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 170187 (Nuts, walnuts, english, SR Legacy). Published: 1 cup chopped = 117 g. Density 0.4945 g/mL. Composition: 65.2% fat, 15.2% protein, 13.7% carbohydrate, 4.1% water.", "density_g_per_ml": 0.4945 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Walnuts (chopped)', 1 cup = 113 g, density 0.4776 g/mL.", "density_g_per_ml": 0.4776 } ] } ], "yields": [], "notes": "Chopped walnuts sit in the milled category not because they are milled but because they pack by scoop the way milled powders and small seeds do. A cup of chopped walnuts is what remains after whole walnut halves are broken into rough pieces of about a quarter-inch, poured into a measuring cup, and lightly leveled. Both King Arthur Baking and USDA FoodData Central publish a figure for this preparation, and the two agree well.\n\nUSDA FoodData Central (FDC 170187, Nuts, walnuts, english) gives 117 grams per cup for chopped walnuts, which implies a density of 0.4945 g/mL on the US customary cup of 236.5882365 mL. King Arthur publishes 113 grams for the same measurement, implying 0.4776 g/mL. The gap between the two is 3.5%, comfortably inside the 10% tolerance this site applies to milled and packed-piece ingredients, so both figures are accepted and the USDA figure is published as the site's primary value. Neither source specifies exactly how coarse the chop is, but for the ordinary case of a knife-chopped walnut for baking, both figures are in the plausible range.\n\nThe size of the chop matters more than a source can encode. A fine chop, where pieces are closer to an eighth of an inch, packs tighter and can push the cup weight up to about 130 g. A coarse chop with pieces near half an inch traps more air and can drop it to about 105 g. The published figure represents the ordinary case for baking, and a recipe that calls for chopped walnuts should be met by chopping until the pieces roughly match commercial chopped walnut packaging.\n\nThis entry is specifically for chopped walnut kernels from the common English walnut (Juglans regia). It does not cover walnut halves, which pack with more air gaps and weigh less per cup; ground walnut meal or walnut flour, which is much finer and packs denser; or black walnuts (Juglans nigra), a distinct species with slightly different fat content and correspondingly different density. Each of those, when sourced, will be a separate entry.\n\nThe confidence grade is medium because two independent sources agree within tolerance and both are widely used references, but no third source at a higher tier (a standards body or an independent bench measurement) confirms the figure. High confidence will require a third independent measurement.", "last_reviewed": "2026-09-18" }, { "id": "cocoa-powder", "schema_version": 3, "name": "Cocoa powder", "synonyms": [ "unsweetened cocoa powder", "natural cocoa powder", "Dutch-processed cocoa", "Dutched cocoa" ], "category": "milled", "default_state": "unspecified", "confidence": "medium", "states": [ { "id": "unspecified", "label": "Method not specified", "density_g_per_ml": 0.3635, "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 169593, SR Legacy, 1 undetermined cup = 86 g", "density_g_per_ml": 0.3635 }, { "name": "King Arthur Baking", "ref": "Ingredient Weight Chart, cocoa (unsweetened), 1/2 cup = 42 g", "density_g_per_ml": 0.355 } ], "verified": "2026-09-15", "last_reviewed": "2026-09-15" } ], "yields": [], "notes": "USDA and King Arthur agree within 2.4%, well inside the 10% milled tolerance. Cocoa powder is a defatted grind of roasted cacao solids, with roughly 10 to 24% cocoa butter remaining and 3 to 5% water; the milled character puts it in the same category as powdered sugar, though cocoa contains no starch anti-caking agent and its particles are finer. USDA FDC 169593 publishes a cup at 86 g (0.3635 g/ml) and a tablespoon at 5.4 g (0.3652 g/ml), a spread of 0.47%. These are one density rounded twice, not two measurements. King Arthur's Ingredient Weight Chart lists cocoa (unsweetened) at 42 g per half cup, implying 84 g per cup or 0.3550 g/ml. King Arthur's Recipe Success Guide separately states their measuring method for dry ingredients as spoon-and-sweep, though the Ingredient Weight Chart does not attach a method to the cocoa figure itself, so the method attribution is weaker than for flour where King Arthur cited weight and method on the same page. Dutch-processed and natural cocoa powder are treated as one entry here because they weigh the same. USDA publishes Dutch-processed unsweetened cocoa at FDC 169594 with a cup portion of 86 g, matching the natural entry; alkalisation changes flavour, colour and pH, and shifts the potassium and calcium content, but does not measurably change particle density. America's Test Kitchen's cocoa taste test recommends Dutch-processed for baking on the basis of fat content and starch behaviour, but this is a flavour and cookery finding rather than a density one. Method variation exists in principle. America's Test Kitchen's Hot Cocoa recipe explicitly measures cocoa by dip-and-sweep, which suggests some baking authorities treat cocoa as a scoop-and-level ingredient rather than a spooned one. USDA's portion data does not distinguish the two, and King Arthur's chart implicitly uses their default spooned technique. If the two methods produced meaningfully different densities the entry would split into states as flour does, but the observed 2.4% gap between USDA's likely-scooped figure and King Arthur's stated-spoon-and-sweep figure sits well inside category tolerance. This may reflect that cocoa's fineness makes bridging less pronounced than in flour, since a fine powder settles more predictably than one with larger, irregular particles. Hershey's own container labels give a tablespoon at 5 g, implying 80 g per cup on the customary volume. That figure is not used here. Nutrition-label tablespoons round to the nearest whole gram on a 14.8 ml spoon, giving a rounding band of roughly 20%, which is wider than the difference the source would resolve. The same convention appears on other retail cocoa containers and is a labelling standard rather than an independent measurement. No standards body publishes a bulk density for cocoa powder. Codex Alimentarius standards for cocoa products cover composition and grading rather than physical density, so the standards route that resolves olive oil and canola oil is not available here. Two independent sources agree, which is enough to publish; confidence stays medium until a third independent measurement confirms it." }, { "id": "coconut-flakes", "schema_version": 3, "name": "Unsweetened Coconut Flakes", "synonyms": [ "coconut chips", "large coconut flakes", "coconut flakes unsweetened", "dried coconut flakes", "unsweetened coconut chips" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, large flakes, untoasted, spooned and leveled", "density_g_per_ml": 0.2536, "range_min": null, "range_max": null, "sources": [ { "name": "Bob's Red Mill Coconut Flakes, unsweetened (producer label)", "ref": "Brand site, 10-oz bag: 1/4 cup (15 g), about 19 servings, extrapolating to 60 g per US cup (density 0.254 g/mL). Bob's 12-oz Unsweetened Flaked Coconut labels the same 1/4 cup (15 g).", "density_g_per_ml": 0.2536 }, { "name": "Thrive Market Organic Coconut Flakes (producer label)", "ref": "Label as reproduced by FatSecret: 1/2 cup (30 g), extrapolating to 60 g per cup.", "density_g_per_ml": 0.2536 }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "KA lists \"Coconut (unsweetened, large flakes)\" at 1 cup = 2 1/8 oz = 60 g, density 0.254 g/mL.", "density_g_per_ml": 0.2536 } ], "verified": "2026-10-26", "last_reviewed": "2026-10-26" } ], "yields": [], "notes": "Unsweetened coconut flakes weigh 60 g per US cup (2.1 oz), a density of 0.254 g/mL. Bob's Red Mill labels a quarter cup at 15 g, Thrive Market half a cup at 30 g, and King Arthur lists large unsweetened flakes at 60 g per cup: three independent sources on exactly the same figure.\n\nCoconut flakes, also sold as coconut chips, are broad, thin slices of dried coconut meat, much larger than shreds, used for toppings, granola, trail mix and toasted garnishes. Unsweetened flakes are just dried coconut: USDA puts dried unsweetened coconut at 3% water and 64.5% fat. Toasted flakes and sweetened chips such as Dang are separate products.\n\nBob's Red Mill sells two flake products, its 10-oz Coconut Flakes and a 12-oz Unsweetened Flaked Coconut, and both label a quarter cup at 15 g. Thrive Market's organic flakes label half a cup at 30 g. King Arthur's chart lists \"Coconut (unsweetened, large flakes)\" at 1 cup = 2 1/8 oz = 60 g. For this product King Arthur agrees exactly with the brands, and its figure stands. The US reference serving for coconut is 15 g, and these labels state how much volume that weight fills, which is why their quarter and half cups land so consistently.\n\nNot every product sold as flaked coconut is the same cut. Kroger's unsweetened flaked coconut labels 2 tablespoons at 10 g, 80 g per cup, and its bag says it holds about 2 cups in 5 oz, about 71 g per cup, which points to a smaller flake. A few labels print 15 g beside 2 tablespoons, 120 g per cup, which would make large flakes heavier than finely desiccated coconut, something broad flakes cannot be; those look like the 15 g reference serving written next to a rough spoon count and are not used here. Toasted chips such as Dang label 3/4 cup at 30 g, 40 g per cup, because toasting curls them and they stack even more loosely.\n\nThe physical check is about shape. Dried coconut meat itself is roughly as dense as water. Broad flat flakes lie across each other at all angles and leave large gaps, so a cup at 0.254 g/mL is only about a quarter coconut. Medium shreds, at 80 g per cup, and fine desiccated coconut, at 85 g, fill the gaps better and weigh more. Pressing flakes into a cup breaks them, which also adds weight.\n\nPractical guidance: 1 cup is 60 g, 1/2 cup 30 g and 1/4 cup 15 g. A 10-oz bag holds 284 g, nearly 5 cups; a 7-oz bag 198 g, about 3 1/3 cups. Spoon flakes into the cup without pressing. For toasting, spread 1 cup (60 g) on a sheet pan; flakes lose a little moisture and weight as they brown. For recipes built on coconut weight, such as granola clusters, weigh rather than measure.\n\nThe coconut products comparison page shows flakes beside shredded, desiccated and sweetened coconut and the other coconut products." }, { "id": "coconut-flour", "schema_version": 3, "name": "Coconut flour", "synonyms": [ "organic coconut flour", "gluten-free coconut flour", "dehydrated coconut meat flour" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, spooned into the cup", "density_g_per_ml": null, "range_min": 0.4903, "range_max": 0.5411, "withheld": true, "withheld_reason": "Two sources disagree by 10.3%, just over the 10% milled tolerance. The variation reflects real differences in grind fineness between manufacturer products, so this entry publishes the range rather than picking one figure.", "sources": [ { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Coconut Flour', 1 cup = 128 g. Density 0.5411 g/mL.", "density_g_per_ml": 0.5411 }, { "name": "USDA FoodData Central (Branded Foods)", "ref": "USDA Branded Foods records for coconut flour show brand variation. Pereg Coconut Flour: 1/4 cup = 29 g, extrapolating to 116 g per cup (0.4903 g/mL). Simply Balanced Organic Coconut Flour (Target), FDC 2660191, has comparable serving weight. No SR Legacy record with a cup portion is published for coconut flour.", "density_g_per_ml": 0.4903 } ], "verified": "2026-09-20", "last_reviewed": "2026-10-26" } ], "yields": [], "notes": "Two sources publish figures for a cup of coconut flour and they differ by 10.3%, just over the 10% milled tolerance. This entry publishes the range they cover rather than a single figure, at low confidence, because the variation reflects real differences in manufacturer grind rather than a measurement error.\n\nKing Arthur's Ingredient Weight Chart publishes 1 cup at 128 g, implying a density of 0.5411 g/mL. USDA Branded Foods records for coconut flour show manufacturer variation from approximately 116 g per cup (Pereg Coconut Flour, 29 g per 1/4 cup serving, extrapolated) to approximately 120 g per cup (Simply Balanced Organic Coconut Flour, FDC 2660191, standard 1/4 cup serving). King Arthur sits at the heavy end of the range; USDA Branded manufacturer figures cluster in the middle at 116-120 g per cup.\n\nUSDA SR Legacy has no cup-portion record for coconut flour, unlike wheat flour and cocoa powder which have long-established reference measurements. This is common for specialty and newer commercial products: SR Legacy predates the coconut-flour surge in North American gluten-free and paleo baking, and the reference database has not been extended to cover it. USDA Branded Foods fills the gap through manufacturer-submitted label data, which is why brand differences appear at the cup level even though the underlying nutritional data (calories, fat, fiber) is consistent per gram across products.\n\nThe physical reason for brand variation is grind fineness. Coconut flour is produced by drying and grinding coconut meat after coconut oil has been extracted, and different manufacturers use different final grinds. Finer grinds trap more air when scooped and settle into a lower bulk density; coarser grinds pack tighter. A fluffier flour weighs less per cup even though the underlying material is chemically identical. This is the same mechanism that causes brand-level variation in vital wheat gluten (published here as a range for the same reason) and that separates dip-and-sweep from spoon-and-sweep measurement in wheat flour.\n\nCoconut flour sits in the milled category alongside wheat and other flours. The 10% category tolerance applies here, and the observed 10.3% gap between sources exceeds it, hence the range publish.\n\nCoconut flour has a distinctive baking property that matters for the range: it is highly absorbent, requiring approximately four to six times its weight in liquid to hydrate fully, compared to about half its weight for wheat flour. This means a 12 g error in a cup measurement (the difference between 116 g and 128 g) translates to a 48-72 g error in required liquid, which meaningfully changes final batter or dough consistency. For coconut flour more than most flours, weighing rather than measuring by volume is essential.\n\nRelated coconut products not covered by this entry: sweetened shredded coconut (93 g per cup), unsweetened shredded coconut (80 g per cup) and unsweetened coconut flakes (60 g per cup), each with its own entry, coconut oil (already published at 218 g per cup, high confidence), coconut milk (already published as range 226-241 g per cup), coconut cream, coconut milk powder, and coconut sugar. Each is a distinct product with distinct sourcing.\n\nNo standards body publishes a bulk density for coconut flour. Codex Alimentarius standards for coconut products cover moisture content, oil extraction and grading rather than physical density. Two authoritative sources with real brand variation, so this entry is held at low confidence and range published until either a third authoritative source resolves the split or SR Legacy adds a cup-portion reference for coconut flour.", "last_reviewed": "2026-09-20" }, { "id": "coconut-milk-powder", "schema_version": 3, "name": "Coconut Milk Powder", "synonyms": [ "powdered coconut milk", "dried coconut milk", "coconut cream powder", "instant coconut milk powder", "santan powder" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": null, "range_min": 0.4058, "range_max": 0.6087, "withheld": true, "withheld_reason": "Sources span 96-144 g per cup, a 50% gap, over the 10% tolerance. Native Forest and NOW label a tablespoon at 8 g (128 g per cup), Nutricost 2 tablespoons at 15 g (120 g), Maggi's metric recipe works out to 104 g, Z Natural labels a tablespoon at 6 g (96 g) and Anthony's at 9 g (144 g); King Arthur gives 114 g. The brands use different carriers and fat levels. No single figure is published.", "sources": [ { "name": "Native Forest Coconut Milk Powder (producer label)", "ref": "Retail nutrition label (Vitacost), 5.25-oz bag: 1 Tbsp (8 g), extrapolating to 128 g per cup (density 0.541 g/mL).", "density_g_per_ml": 0.541 }, { "name": "NOW Foods Organic Coconut Milk Powder (producer label)", "ref": "Brand site nutrition panel: 1 tbsp (8 g), extrapolating to 128 g per cup.", "density_g_per_ml": 0.541 }, { "name": "Nutricost Coconut Milk Powder (producer label)", "ref": "Retail nutrition label (Vitacost): 1 Scoop (2 Tbsp) (15 g), extrapolating to 120 g per cup (density 0.507 g/mL).", "density_g_per_ml": 0.5072 }, { "name": "Maggi Coconut Milk Powder Mix (producer directions, UK)", "ref": "Brand site: 220 ml (7/8 cup) water + 55 g (1/2 cup) powder = 250 ml (1 cup) coconut milk. The cup is the 250 mL metric cup, so 55 g fills 125 mL: 0.440 g/mL, 104 g per US cup. The 3/4-cup line, 85 g, works out to 107 g. Per 100 g: fat 65.2 g, carbohydrate 25.2 g, protein 6.8 g.", "density_g_per_ml": 0.44 }, { "name": "Z Natural Foods Organic Coconut Milk Powder (producer)", "ref": "Brand nutrition facts article: per tablespoon (6 grams), extrapolating to 96 g per cup (density 0.406 g/mL).", "density_g_per_ml": 0.4058 }, { "name": "Anthony's Organic Coconut Milk Powder (producer label)", "ref": "Label as reproduced by ReciPal from anthonysgoods.com: 1 tablespoon (9 g), extrapolating to 144 g per cup (density 0.609 g/mL). CalorieKing lists the same product at 0.3 oz per tablespoon, about 136 g per cup.", "density_g_per_ml": 0.6087 }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "KA lists \"Coconut Milk Powder\" at 1/2 cup = 2 oz = 57 g, extrapolating to 114 g per US cup, density 0.482 g/mL.", "density_g_per_ml": 0.4818 } ], "verified": "2026-10-26", "last_reviewed": "2026-10-26" } ], "yields": [], "notes": "A cup of coconut milk powder weighs 96 to 144 g (3.4 to 5.1 oz), depending on the brand. Native Forest and NOW Foods label a tablespoon at 8 g (128 g per cup), Nutricost labels 2 tablespoons at 15 g (120 g), Maggi's recipe works out to about 104 g, Z Natural gives a tablespoon at 6 g (96 g) and Anthony's at 9 g (144 g). King Arthur's 114 g sits inside that span. The brands disagree by far more than the 10% tolerance, so this entry publishes the range.\n\nCoconut milk powder is coconut milk dried onto a carrier so that it stays a free-flowing powder instead of a block of coconut fat. Most US natural-foods brands use tapioca maltodextrin and gum acacia; Maggi's lists coconut milk powder (78%), maltodextrin and sodium caseinate, a milk protein, so check the label if you need it dairy-free. It is mostly fat: Maggi's label gives 65 g per 100 g, and the Malaysian food composition table gives 60 g for an instant coconut milk powder. Whisked into hot water it becomes coconut milk; spooned in dry it goes into curries, soups, smoothies, coffee and baking mixes.\n\nUSDA's Standard Reference has no record for coconut milk powder, so the figures here come from producers. Native Forest's label and NOW Foods' both give 1 tablespoon at 8 g, the only figure two brands share. Nutricost labels a 2-tablespoon scoop at 15 g, 120 g per cup. Maggi's UK directions mix 55 g, which they call half a cup, with 220 mL of water; their cup is the 250 mL metric cup, so 55 g fills 125 mL, about 104 g per US cup, and their three-quarter-cup line, 85 g, works out to 107 g. Z Natural Foods gives 6 g per tablespoon, 96 g per cup, and Anthony's label, as transcribed by ReciPal, 9 g per tablespoon, 144 g per cup. Label tablespoons are printed in whole grams, so each 1 g step is 16 g per cup.\n\nThe physical check starts from the fat. Coconut fat is lighter than water, about 0.92 g/mL, so a powder that is nearly two thirds fat is light even before air is counted: from Maggi's composition the solid powder works out to about 1.06 g/mL, against about 1.43 for buttermilk powder. At 96 to 144 g per cup, coconut milk powder runs from under two fifths solid to well over half, the difference between a fluffy, agglomerated powder and a fine, dense one. None of the figures is physically impossible, so none is rejected; they differ because the products do, in carrier, fat content and how the drying leaves them.\n\nKing Arthur lists coconut milk powder at 1/2 cup = 2 oz = 57 g, 114 g per cup, inside the range, so it is not a correction. King Arthur's directions for its own coconut milk powder, now discontinued, mix 1 part powder with 3 parts hot water.\n\nPractical guidance: weigh coconut milk powder, or use your own bag's label: multiply its grams per tablespoon by 16 for a cup. For an unknown brand, 120 g per cup, 7.5 g per tablespoon, is the middle of the range. To make about a cup of coconut milk, Maggi uses 55 g of powder in 220 mL of water. The powder takes up moisture and clumps once opened, so keep it sealed and break up clumps before measuring." }, { "id": "coconut-sweetened-shredded", "schema_version": 3, "name": "Coconut (sweetened, shredded)", "synonyms": [ "sweetened shredded coconut", "sweetened coconut", "shredded coconut sweetened", "Baker's Angel Flake coconut", "coconut flakes sweetened" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, sweetened shredded pieces loose in the cup", "density_g_per_ml": 0.3931, "sources": [ { "name": "USDA FoodData Central", "ref": "Nuts, coconut meat, dried (desiccated), sweetened, shredded (SR Legacy, NBD 12179 / FDC ID 168586). Published: 1 cup shredded = 93 g. Density 0.3931 g/mL. USDA's naming combines desiccated and shredded terminology, but the record measures standard commercial sweetened shredded coconut of the Baker's Angel Flake variety (501 kcal/100g reflects the sugar and coconut fat content).", "density_g_per_ml": 0.3931 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Coconut (sweetened, shredded)', 1 cup (85 g/cup). Density 0.3593 g/mL. Agrees with USDA to within 9.4%, at the edge of the 10% milled tolerance.", "density_g_per_ml": 0.3593 } ], "verified": "2026-09-21", "last_reviewed": "2026-10-26" } ], "yields": [], "notes": "Sweetened shredded coconut publishes at 93 grams per cup, with two authoritative sources in acceptable agreement at 9.4% (just inside the 10% milled tolerance). USDA SR Legacy record 168586 measures the standard commercial product, the sugar-coated shredded coconut sold under names like Baker's Angel Flake, at 93 g/cup. King Arthur publishes 85 g/cup for the same nominal state. The gap sits at the edge of tolerance and likely reflects differences in fill method between the two measurement standards, plus real variance across commercial brands that use different sugar-to-coconut ratios.\n\nSweetened shredded coconut is one entry point into a broader coconut cluster on the site where the density story is unusually rich. King Arthur's chart alone lists five distinct dried coconut forms, and the cup weights vary widely between them: sweetened shredded and unsweetened desiccated and toasted all sit at 85 g/cup, unsweetened large flakes at 60 g/cup, and unsweetened shredded at 53 g/cup. The physics behind these differences comes down to two independent variables acting together. Particle geometry drives one axis: desiccated coconut is very finely ground into small dense particles that pack tightly, shredded unsweetened coconut is long stringy fibers that tangle with substantial air gaps, and large flakes are broad flat pieces that stack loosely but with less air than shredded fibers. Sugar coating drives the other axis: sweetened shreds weigh about 15% more than unsweetened ones (93 g/cup against 80 g/cup for the unsweetened medium shreds sold by Bob's Red Mill, Anthony's and NOW) because the sugar coating fills gaps between the fibers and adds direct mass. King Arthur's 53 g/cup for unsweetened shredded is rejected on the unsweetened shredded coconut entry.\n\nThe USDA and King Arthur agreement on sweetened shredded at 93 versus 85 g/cup is a two-source agreement even though it sits at the tolerance edge. Bakers should treat the published figure (USDA's 93 g/cup) as reasonable for standard commercial sweetened shredded coconut, and expect somewhat lower weight if using less densely coated brands.\n\nCompared to the site's other coconut entries already in the database, this sweetened shredded coconut is much less dense than coconut flour (128 g/cup, dry powdered coconut meat that packs very tightly) but similar in density behavior to the general dried-shredded family. Coconut oil at 218 g/cup (fat category) is far denser because it's pure fat with no air, and coconut milk at 240 g/cup (liquid) is water-based. The unsweetened desiccated, unsweetened shredded and unsweetened flake entries sit beside this one, so each of King Arthur's dried coconut forms has its own sourced figure.\n\nCategory assignment is milled rather than sugar because sweetened shredded coconut is fundamentally fibrous plant material similar to wheat bran or flax meal. The sugar coating adds mass and changes flavor but does not change the fundamental packing behavior from fibrous-to-crystalline. The sugar category is reserved for granulated sugars, salts, chocolate chips, and small dried fruits like raisins and currants, all of which pack as small hard particulate solids. Shredded coconut, even when sweetened, retains its fibrous strand character.\n\nConfidence is medium. Two authoritative sources agree within tolerance, the USDA record provides direct portion data with a clear analytical trail, and the physical mechanism is well-understood. The main source of remaining variance is brand-level: different manufacturers use different sugar-coating ratios, different shred lengths, and different moisture content in their finished product. Bakers using recipes that specify a particular brand should trust that recipe's implicit density; bakers substituting brands should weigh their coconut when precision matters." }, { "id": "coconut-unsweetened-desiccated", "schema_version": 3, "name": "Coconut (unsweetened, desiccated)", "synonyms": [ "unsweetened desiccated coconut", "desiccated coconut", "unsweetened coconut", "coconut desiccated", "fine shred coconut", "unsulfured desiccated coconut" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, finely shredded/desiccated unsweetened pieces loose in the cup", "density_g_per_ml": 0.3593, "sources": [ { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Coconut (unsweetened, desiccated)', 1 cup (85 g/cup). Density 0.3593 g/mL.", "density_g_per_ml": 0.3593 }, { "name": "Let's Do Organic (producer package data)", "ref": "Let's Do Organic 100% Organic Unsweetened Shredded Coconut, 8 oz (227 g) package explicitly labeled as containing 2 2/3 cups. That works out to 227 g / 2.667 cups = 85.1 g/cup, exact match to King Arthur. Producer measurement used as second source because USDA SR Legacy record 170170 (Nuts, coconut meat, dried desiccated, not sweetened) publishes only 100 g and 1 oz portions and no cup portion for this product state.", "density_g_per_ml": 0.3593 } ], "verified": "2026-09-21", "last_reviewed": "2026-10-26" } ], "yields": [], "notes": "Unsweetened desiccated coconut publishes at 85 grams per cup, with King Arthur and Let's Do Organic package data in exact agreement. King Arthur publishes 85 g/cup on their Ingredient Weight Chart, and Let's Do Organic's 8-ounce (227 g) package is explicitly labeled as 2 2/3 cups, which computes to 85.1 g/cup. Bob's Red Mill's unsweetened shredded coconut serves as a third data point at 80 g/cup (derived from their labeled 3 tablespoons = 15 g serving size), which sits within reasonable manufacturing variance of the 85 g figure. USDA SR Legacy record 170170 (Nuts, coconut meat, dried desiccated, not sweetened) provides the definitive nutritional composition for this ingredient (660 kcal/100g, 64.5% fat) but does not publish a cup portion, only 100 g and 1 oz serving sizes. This entry uses producer package data as the second authoritative source to compensate for the USDA cup portion gap.\n\nThe density of 0.3593 g/mL is unusual to see broken into physical mechanism. Desiccated coconut is finely shredded and dried coconut meat, essentially small dry particles rather than the long fibrous strands of coarser shredded coconut. The fine particles pack tightly against each other with modest interstitial air, giving a density well below water despite the ingredient itself being quite dense per gram (mostly fat and fiber, very little water). The 85 g/cup figure is close to a natural packing limit for finely ground dry coconut meat.\n\nA terminology conflict across manufacturers deserves flagging. Different brands use different names for similar cuts. Bob's Red Mill labels their fine-shred product as 'unsweetened shredded' (80 g/cup) while Let's Do Organic labels their similar-density product as 'unsweetened shredded' (85 g/cup); King Arthur separates 'desiccated' (85 g/cup) from 'shredded' (53 g/cup) explicitly, treating them as different states. In KA's terminology, desiccated means finely ground and shredded means longer stringy fibers. In Bob's and Let's Do terminology, shredded covers the fine-ground state that KA calls desiccated. Bakers cross-referencing recipes and product labels should verify which cut a specific product is by measuring or by checking the packaged serving weight.\n\nCompared to the coconut cluster on the site, unsweetened desiccated at 85 g/cup lands at the same cup weight as sweetened shredded (also 85 g in KA, 93 g in USDA) despite the two being different products. The convergence happens because two independent mechanisms produce similar outcomes: sweetened shredded packs densely due to sugar coating filling interstitial gaps, and unsweetened desiccated packs densely because the finely ground particles have less air between them to begin with. Unsweetened medium shreds (80 g/cup on the unsweetened shredded coconut entry) are a little lighter, and unsweetened large flakes (broad flat pieces, 60 g/cup) much lighter, because both retain more air between pieces than the fine desiccated cut. King Arthur's 53 g/cup for unsweetened shredded is a third below every shredded coconut label and is rejected on that entry.\n\nCategory assignment is milled. Desiccated coconut is dried plant material similar to wheat bran, flax meal, and coconut flour, all of which sit in milled. The sugar category is reserved for granulated sugars, salts, chocolate chips, and small dried fruits, all of which pack as small hard particulate solids. Desiccated coconut is fibrous plant particulate rather than crystalline, so milled is the correct home.\n\nConfidence is medium. Three sources (KA, Let's Do Organic package label, Bob's Red Mill product data) cluster tightly at 80-85 g/cup, and USDA compositional data confirms the ingredient identity. Confidence is not high because USDA does not publish a cup portion, which is unusual for a common commercial ingredient. Bakers should treat 85 g/cup as accurate for standard unsweetened desiccated coconut and check the package label if using a brand that specifies a different serving weight." }, { "id": "coconut-unsweetened-shredded", "schema_version": 3, "name": "Unsweetened Shredded Coconut", "synonyms": [ "shredded coconut unsweetened", "unsweetened coconut shreds", "medium shred coconut", "dried shredded coconut", "coconut shreds" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, medium shred, spooned and leveled", "density_g_per_ml": 0.3381, "range_min": null, "range_max": null, "sources": [ { "name": "Bob's Red Mill Unsweetened Shredded Coconut (producer label)", "ref": "Brand site, 12-oz bag: 3 Tbsp (15 g), about 23 servings, extrapolating to 80 g per US cup (density 0.338 g/mL).", "density_g_per_ml": 0.3381 }, { "name": "Anthony's Organic Shredded Coconut, Unsweetened (producer label)", "ref": "Label as reproduced by ReciPal: 3 tablespoons (15 g), extrapolating to 80 g per cup.", "density_g_per_ml": 0.3381 }, { "name": "Terrasoul Organic Unsweetened Shredded Coconut (producer label)", "ref": "Label as reproduced by ReciPal: 3 tbsp (15 g), extrapolating to 80 g per cup.", "density_g_per_ml": 0.3381 }, { "name": "NOW Foods Organic Unsweetened Shredded Coconut, medium shred (producer label)", "ref": "Brand site: 3 tbsp (15 g), about 19 servings, extrapolating to 80 g per cup.", "density_g_per_ml": 0.3381 }, { "name": "America's Test Kitchen, Triple Coconut Macaroons", "ref": "Recipe ingredient line: 3 cups unsweetened shredded desiccated coconut (about 8 ounces/227 grams), which is 75.7 g per cup (density 0.320 g/mL).", "density_g_per_ml": 0.3198 }, { "name": "USDA SR Legacy \"Nuts, coconut meat, dried (desiccated), not sweetened\" (FDC 170170)", "ref": "Weight portion only (1 oz = 28.35 g), no cup figure. Water 3.0 g, fat 64.5 g, fibre 16.3 g per 100 g.", "fdc_id": 170170 }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "KA lists \"Coconut (unsweetened, shredded)\" at 1 cup = 1 7/8 oz = 53 g, density 0.224 g/mL.", "density_g_per_ml": 0.224, "rejected": true, "rejection_reason": "Every unsweetened shredded coconut on sale that gives a volume, Bob's Red Mill, Anthony's, Terrasoul and NOW, labels 3 tablespoons at 15 g, 80 g per cup, and America's Test Kitchen weighed 3 cups at 227 g, 76 g per cup. 53 g is a third lighter than all of them. King Arthur's own chart puts these shreds lighter than its large flakes (60 g), which broad flat flakes, stacking with more air than shreds, would not allow for the product sold as shredded coconut. For the shreds people buy, 53 g undercounts by about a third." } ], "verified": "2026-10-26", "last_reviewed": "2026-10-26" } ], "yields": [], "notes": "Unsweetened shredded coconut weighs 80 g per US cup (2.8 oz), a density of 0.338 g/mL. Bob's Red Mill, Anthony's, Terrasoul and NOW all label 3 tablespoons at 15 g, and America's Test Kitchen weighed 3 cups at 227 g, 76 g per cup. King Arthur's 53 g is a third lighter than every one of them and is rejected.\n\nUnsweetened shredded coconut is dried coconut meat cut into short strands, with no sugar added. USDA puts dried unsweetened coconut at 3% water, 64.5% fat and 16% fibre. Brands sell several cuts: fine shred, often called desiccated, medium shred, the usual \"shredded coconut\", and large flakes or chips. It goes into granola, macaroons, curries, energy bites and low-sugar baking.\n\nThe labels are the main evidence, and they are better than most label figures. The US reference serving for coconut is a weight, 15 g, but each brand has to say how much volume that weight fills, and four brands of medium shred independently say 3 tablespoons, 80 g per cup. NOW calls its product medium shred outright. America's Test Kitchen's macaroon recipe calls for 3 cups weighing about 8 ounces, which is 76 g per cup, within 6% of the labels. USDA's record for dried unsweetened coconut gives only an ounce, no cup.\n\nCut matters a little. Let's Do Organic's fine shred labels 2 1/2 tablespoons at 15 g, 96 g per cup, and the unsweetened desiccated coconut entry on this site, the finest cut, sits at 85 g. Large flakes are lighter at 60 g, because broad flat pieces stack with more air. Sweetened shredded coconut weighs 93 g in USDA's measurement, the sugar coating adding weight and filling gaps between strands.\n\nKing Arthur's chart lists unsweetened shredded coconut at 1 cup = 1 7/8 oz = 53 g. That is lighter than its own large flakes at 60 g, which only a long, loose thread of coconut could be, and a third lighter than the medium shreds sold as shredded coconut. Whatever King Arthur weighed, it is not what a baker gets from a bag labelled shredded coconut, so the figure is recorded as a rejected source with its own correction page.\n\nThe physical check is simple: dried coconut meat is roughly as dense as water once its fat and fibre are averaged, close to 1 g/mL, and a cup of shreds at 0.338 g/mL is about one third coconut and two thirds air. Finer cuts fill the gaps better and weigh more; flakes leave more air.\n\nPractical guidance: 1 cup is 80 g, 1/2 cup 40 g, 1/4 cup 20 g and 1 tablespoon 5 g. A 12-oz bag holds 340 g, about 4 1/4 cups; an 8-oz bag 227 g, about 2 3/4 cups. Shredded coconut is springy and packs down if pressed, so spoon it in loosely and level it, or weigh it for macaroons, where the coconut is the structure.\n\nThe coconut products comparison page shows unsweetened shreds beside desiccated, sweetened and flaked coconut and the other coconut products." }, { "id": "corn-kernels", "schema_version": 3, "name": "Corn Kernels", "synonyms": [ "sweet corn kernels", "frozen corn", "frozen corn kernels", "fresh corn kernels", "whole kernel corn", "corn off the cob" ], "category": "milled", "default_state": "frozen", "confidence": "medium", "states": [ { "id": "frozen", "label": "Frozen, straight from the bag", "density_g_per_ml": 0.5748, "range_min": null, "range_max": null, "sources": [ { "name": "USDA SR Legacy \"Corn, sweet, yellow, frozen, kernels cut off cob, unprepared\" (FDC 168398)", "ref": "USDA Standard Release publishes 1 cup = 136 g (density 0.575 g/mL) and a 10-oz package = 284 g.", "fdc_id": 168398, "density_g_per_ml": 0.5748 }, { "name": "Birds Eye Steamfresh Super Sweet Corn (producer label)", "ref": "SmartLabel nutrition panel, the same line on the Organic and 5-lb Sweet Corn labels: 2/3 cup (95 g) frozen, extrapolating to 142.5 g per cup (density 0.602 g/mL).", "density_g_per_ml": 0.6023 }, { "name": "Cascadian Farm Sweet Corn (producer label)", "ref": "Label as reproduced by MyFoodDiary: 2/3 cup (95 g), measured frozen, extrapolating to 142.5 g per cup.", "density_g_per_ml": 0.6023 }, { "name": "Great Value Frozen Whole Kernel Golden Corn (producer label)", "ref": "Label as reproduced by FatSecret: 2/3 cup (90 g), extrapolating to 135 g per cup (density 0.571 g/mL).", "density_g_per_ml": 0.5706 }, { "name": "Green Giant Niblets frozen corn (producer labels)", "ref": "SmartLabel: Niblets 2/3 cup (85 g) frozen; Extra Sweet Niblets 84 g, 2/3 cup frozen. 85 g is the reference serving for vegetables and the label prints the nearest household measure beside it, so the pair is not read as a density (it would be 126-128 g per cup)." }, { "name": "Kroger Frozen Super Sweet Corn (producer label)", "ref": "Retail label: 1/2 cup (85 g), the 85 g reference serving beside the nearest household measure; read as a density it would be 170 g per cup, above every measured frozen cup." } ], "verified": "2026-10-26", "last_reviewed": "2026-10-26" }, { "id": "fresh", "label": "Fresh, cut from the cob", "density_g_per_ml": 0.6129, "range_min": null, "range_max": null, "sources": [ { "name": "USDA SR Legacy \"Corn, sweet, yellow, raw\" (FDC 169998)", "ref": "USDA Standard Release publishes 1 cup = 145 g (density 0.613 g/mL). Water 76.0 g, carbohydrate 18.7 g (sugars 6.26 g), protein 3.27 g, fat 1.35 g per 100 g.", "fdc_id": 169998, "density_g_per_ml": 0.6129 }, { "name": "USDA FNDDS \"Corn, raw\" (FDC 2709783)", "ref": "USDA's survey database publishes 1 cup = 150 g (density 0.634 g/mL).", "fdc_id": 2709783, "density_g_per_ml": 0.634 }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "KA lists \"Corn (fresh or frozen)\" at 1/4 cup = 1 1/3 oz = 38 g, extrapolating to 152 g per US cup, density 0.642 g/mL.", "density_g_per_ml": 0.6425 } ], "verified": "2026-10-26", "last_reviewed": "2026-10-26" } ], "yields": [], "notes": "A cup of frozen corn kernels weighs 136 g (4.8 oz) measured straight from the bag, and a cup of fresh kernels cut from the cob 145 g (5.1 oz). USDA weighs both; the Birds Eye, Cascadian Farm and Great Value labels agree with the frozen figure, and USDA's survey database and King Arthur with the fresh one. King Arthur's 152 g, given for fresh or frozen, agrees for fresh kernels and is heavy for frozen.\n\nSweet corn is picked young, while the kernels are still soft and sugary; USDA puts raw yellow sweet corn at 76% water, 19% carbohydrate, 3% protein and 1% fat. Frozen corn is cut from the cob, blanched and frozen loose, so each kernel stays separate. That is what makes frozen and fresh measure differently: frozen kernels are hard and do not settle, while fresh-cut kernels are moist, sometimes still joined in rows, and slump into the gaps.\n\nFor frozen corn, USDA SR Legacy \"Corn, sweet, yellow, frozen, kernels cut off cob, unprepared\" (FDC 168398) lists 1 cup at 136 g. Birds Eye's Steamfresh Super Sweet Corn label gives 2/3 cup at 95 g, measured frozen, as does Cascadian Farm's, both 142.5 g per cup, and Great Value's gives 2/3 cup at 90 g, 135 g per cup. All four are within 6% of each other. Green Giant prints 2/3 cup at 84 to 85 g and Kroger 1/2 cup at 85 g; 85 g is the reference serving for vegetables and the volume beside it is the nearest household measure, so those pairs are not read as densities.\n\nFor fresh kernels, USDA SR Legacy \"Corn, sweet, yellow, raw\" (FDC 169998) lists 1 cup at 145 g and USDA's survey database (FNDDS, FDC 2709783) 150 g. King Arthur lists corn, fresh or frozen, at 1/4 cup = 1 1/3 oz = 38 g, 152 g per cup, within 5% of both.\n\nThe physical check: corn kernels are a little denser than water, so a cup at 136 to 163 g is somewhere between half and two thirds corn, the rest air. Hard frozen kernels leave the most gaps; once thawed they settle. USDA's school Food Buying Guide counts a pound of frozen corn at about 2 3/4 cups of thawed kernels, 163 g per cup, and the Culinary Institute of America gives 1 cup of kernels at 163 g. That is why one figure cannot be right for fresh and frozen alike: King Arthur's 152 g sits between frozen and thawed, and matches fresh.\n\nCanned corn is another measure again. USDA's drained canned whole kernels weigh 164 g per cup, and the Food Buying Guide's drained canned corn about 195 g; labels that include the packing liquid run higher still.\n\nPractical guidance: measure frozen corn frozen, straight from the bag, at 136 g per cup; a 10-oz package, 284 g, is a little over 2 cups. For fresh corn, a cup of kernels is 145 g. If a recipe was written with thawed corn, expect a cup to hold about 163 g. For cornbread, salsa and chowder, where a little more or less corn does no harm, cups are fine; where the corn's moisture matters, as in fritters, weigh it." }, { "id": "cornmeal", "name": "Cornmeal", "aliases": [ "yellow cornmeal", "corn meal", "maize meal" ], "category": "milled", "schema_version": 3, "confidence": "medium", "default_state": "standard", "states": [ { "id": "standard", "label": "Standard (yellow, degermed, enriched)", "density_g_per_ml": 0.6636, "verified": "2026-09-17", "last_reviewed": "2026-09-17", "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 168867 (Cornmeal, degermed, enriched, yellow, SR Legacy). Published: 1 cup = 157 g. Density 0.6636 g/mL. Composition: ~12% water, 77.7% carbohydrate, 8.5% protein, 1.7% fat.", "density_g_per_ml": 0.6636 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Cornmeal (yellow, Quaker)', 1 cup = 156 g, density 0.6594 g/mL. Quaker's yellow cornmeal is the dominant US supermarket brand of degermed enriched cornmeal.", "density_g_per_ml": 0.6594 } ] } ], "yields": [], "notes": "Cornmeal is dried corn kernels ground to varying degrees of coarseness, with or without the germ and bran depending on the process. The version this entry describes is the yellow degermed enriched cornmeal that dominates the American supermarket — the Quaker Oats brand in the round cardboard tube being the archetypal example, though many store brands and other manufacturers produce essentially the same product.\n\nUSDA FoodData Central publishes 1 cup of degermed enriched yellow cornmeal at 157 grams (FDC 168867, Cornmeal, degermed, enriched, yellow). That gives a bulk density of 0.6636 grams per millilitre. King Arthur's ingredient weight chart publishes the same product at 156 grams per cup and 0.6594 grams per millilitre. The two figures agree within 1 percent, well inside the 10 percent tolerance we apply to the milled category.\n\nKing Arthur separately lists whole grain cornmeal at 138 grams per cup and polenta at 163 grams per cup. Both are legitimately different physical products from the standard degermed cornmeal, but neither is included as a state in this entry pending a second authoritative source. USDA publishes whole grain yellow cornmeal (FDC 169697) but with a portion whose cup weight is not as cleanly cited in accessible references. Polenta is not a distinct USDA entry; it is coarsely ground yellow cornmeal, chemically identical to standard cornmeal but ground to different specifications.\n\nThe three cornmeal grinds differ in bulk density in ways the physics predicts. Fine yellow (this entry) is degermed, and the endosperm-only grind packs tightly with less air, giving density around 0.66 to 0.68 grams per millilitre. Whole grain includes the bran, which is coarser and produces a bulkier grind with more air pockets, dropping density to around 0.52 to 0.58. Coarse polenta grind has larger but uniform particles that stack together tightly with fewer bridging gaps, giving density around 0.69 based on King Arthur's figure. The pattern — whole grain lightest, polenta heaviest, standard between — reflects the interaction of particle size, bran presence and packing behaviour.\n\nRelated products this entry does not cover: corn flour, which is more finely ground than cornmeal and denser per cup (roughly 130 grams per cup); masa harina, which is nixtamalized (lime-treated) cornmeal used for tortillas and tamales, with distinct alkaline flavour and different behaviour in baking; grits, which is coarsely ground corn similar to polenta but usually white and eaten as a cooked porridge; and popcorn, which is a distinct corn variety not ground into meal at all.\n\nFDA identity standards for cornmeal are at 21 CFR 137.250 (yellow corn meal), 21 CFR 137.260 (bolted yellow corn meal), 21 CFR 137.270 (enriched corn meals) and 21 CFR 137.275 (self-rising yellow corn meal), addressing composition, moisture, particle size and enrichment standards. Codex Alimentarius standard for degermed maize meal is CXS 154-1985. Neither publishes bulk density; both focus on identity and composition.\n\nThe category here is 'milled' because cornmeal behaves like other fine milled powders in a measuring cup — it clumps, bridges over air pockets, and its density depends on scoop method and grain fineness. The 10 percent tolerance applies. For the yellow degermed state, both sources sit well inside it.", "last_reviewed": "2026-09-17" }, { "id": "cornstarch", "schema_version": 3, "name": "Cornstarch", "synonyms": [ "corn starch", "cornflour", "corn flour (British)", "maize starch" ], "category": "milled", "default_state": "unspecified", "confidence": "low", "working_figure": { "grams": 112, "basis": "if you spoon it into the cup and level it" }, "states": [ { "id": "unspecified", "label": "Method not specified", "density_g_per_ml": null, "withheld": true, "withheld_reason": "Two sources disagree by 13.3%, over the 10% tolerance for this category.", "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 169698, SR Legacy, 1 undetermined cup = 128 g", "density_g_per_ml": 0.541 }, { "name": "King Arthur Baking", "ref": "Ingredient Weight Chart, cornstarch, 1/4 cup = 28 g", "density_g_per_ml": 0.4734 } ], "verified": "2026-09-15", "last_reviewed": "2026-09-15" } ], "yields": [], "notes": "Two sources 13.3% apart, over the 10% tolerance for the milled category, so this entry publishes a range rather than a figure. USDA FDC 169698 gives a cup of cornstarch at 128 g (0.5410 g/ml). King Arthur's Ingredient Weight Chart gives 28 g per quarter cup, implying 112 g per cup or 0.4734 g/ml. Neither source names a method on the page cited. King Arthur's Recipe Success Guide separately states their measuring method for dry ingredients as spoon-and-sweep, which is likely the source of the difference: pure cornstarch is the most cake-prone ingredient in the milled category because it is 100% starch with no diluent, and the same reason it is added to powdered sugar as an anti-caking agent explains why cornstarch on its own compacts hard in the box and needs breaking up. A dip-and-sweep cup pushed into a settled box captures more material than a spooned cup does, and 12.5% is within the range that measurement technique can plausibly account for. This mirrors the flour case, where dip-and-sweep and spoon-and-sweep produce different weights of the same substance, but with only one source per method the entry cannot be split by method and is held as a range instead. The 128 g figure appears everywhere the USDA data has been quoted, including Wikipedia's cornstarch article which lists a density of 0.54 g/ml matching USDA exactly. That does not add a source; Wikipedia's density is USDA's cup portion divided by the customary cup volume, so citing it would be citing USDA twice. King Arthur's 112 g figure is the outlier in the sense that most published converters use USDA's 128 g, but King Arthur's chart is a first-hand source that names its own conditions of use, so the disagreement is real rather than a copy error. Nutrition-label servings for retail cornstarch (Argo, Clabber Girl, store-brand) declare 8 g per tablespoon or 30 g per portion at various fractions of a cup, but these round to the nearest whole gram on a small measure and do not count as measurements, for the reasons given on the cocoa powder page. No standards body publishes a bulk density for cornstarch. USDA's technical report on cornstarch handling (2025) covers organic classification and food safety rather than physical density, and Codex Alimentarius standards for starches (CXS 87-1981 and successors) specify moisture, ash, protein and sulphur dioxide limits rather than bulk density. Two sources only, and the range is published because no third source arbitrates between the spooned and unspooned figures." }, { "id": "couscous", "schema_version": 3, "name": "Couscous, Dry", "synonyms": [ "dry couscous", "uncooked couscous", "Moroccan couscous", "Maghrebi couscous", "semolina couscous" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, dry, spooned and leveled", "density_g_per_ml": 0.732, "sources": [ { "name": "USDA FoodData Central — Couscous, dry", "ref": "USDA reference record. 183 g per metric cup (173 g per US cup, density 0.7320 g/mL). Anchor for this entry.", "density_g_per_ml": 0.732 }, { "name": "Bob's Red Mill Golden Couscous — nutrition label", "ref": "Fine Moroccan-style couscous. 1/3 cup dry serving = 62 g, which extrapolates to 186 g per US cup at density 0.786 g/mL. Within 7.5 percent of the USDA anchor and inside the 10 percent milled tolerance.", "density_g_per_ml": 0.786 }, { "name": "Bob's Red Mill Natural Pearl Couscous — nutrition label", "ref": "Israeli/pearl couscous, a larger toasted-pasta form of the ingredient. 1/3 cup dry serving = 57 g, extrapolating to 171 g per US cup at density 0.723 g/mL. Essentially matches the USDA anchor despite the very different granule size.", "density_g_per_ml": 0.723 } ], "verified": "2026-09-23", "last_reviewed": "2026-09-23" } ], "yields": [], "notes": "Dry couscous packs at about 173 g per US cup. USDA and multiple producer labels agree within 8 percent, and both the fine Moroccan style and the larger Israeli pearl style fall within tolerance of the same figure despite their very different granule sizes.\n\nCouscous is small steamed granules of rolled durum wheat semolina — a traditional North African and Maghrebi staple made by moistening semolina flour, rolling it between the palms into tiny beads, steaming the beads briefly, and drying them. The result is a dried granule that rehydrates in hot water in minutes, unlike the wheat berries or pasta shapes that share its base ingredient. Three forms are sold under the couscous name in US supermarkets. Moroccan (fine) couscous, roughly 1 mm granules, is the default in North American recipes and the form USDA's record covers. Israeli couscous (also called pearl couscous or ptitim), roughly 3 mm balls, sits alongside it on most supermarket shelves; it is technically a toasted extruded pasta rather than steam-rolled semolina, but sold as couscous. Lebanese couscous, called moghrabieh, is 5 to 6 mm and rarer in mass-market US retail.\n\nSources converge closely. USDA FoodData Central's Couscous, dry gives 183 g per metric cup, which works out to 173 g per US cup at a density of 0.732 g/mL. Bob's Red Mill Golden Couscous, a fine Moroccan-style product, labels a 1/3 cup dry serving as 62 g, extrapolating to 186 g per US cup at density 0.786 g/mL — within 8 percent of USDA and inside the 10 percent milled tolerance. Bob's Red Mill Natural Pearl Couscous labels 1/3 cup dry as 57 g (171 g per US cup, density 0.723 g/mL), essentially matching USDA. The fine and pearl forms have very different granule sizes but end up at similar cup weights because the larger pearl balls, while denser per particle, pack in a different geometric arrangement (larger voids between fewer particles) that compensates for the extra particle density. The net cup weight ends up within tolerance across both product identities.\n\nKing Arthur's Ingredient Weight Chart does not list couscous in any form. The chart is silent on this ingredient, so there is no correction opportunity; the site publishes what USDA and the producer labels already agree on.\n\nCouscous cooks by absorption rather than boiling. Fine Moroccan couscous rehydrates in an equal volume of hot water in 5 minutes off the heat; pearl couscous simmers in about 1.25 volumes of liquid for 10 minutes. Cooked couscous nearly triples in volume from dry, so 1 cup dry (173 g) becomes roughly 2.5 to 3 cups cooked. For recipes calling for a cup of dry couscous, measuring by weight is more reliable than by volume because the fine granules compact under a scoop; the difference between a loosely spooned and a firmly packed cup can exceed 20 percent.\n\nCouscous at 173 g per cup sits in the mid-range milled band alongside semolina flour (163 g/cup in this database, same base grain in a different processing state) and above masa harina (93 g/cup, treated with lime and much lighter). Its density above semolina flour reflects the compaction from the steam-and-dry process that produces the granules — each granule is denser than the loose flour it started from, and although the granules pack with air spaces between them, the net effect is a slightly heavier cup than plain semolina." }, { "id": "cracked-wheat", "schema_version": 3, "name": "Cracked Wheat", "synonyms": [ "cracked whole wheat", "cracked wheat cereal", "kibbled wheat", "cracked red wheat", "wheat grits" ], "category": "milled", "default_state": "standard", "confidence": "low", "working_figure": { "grams": 160, "basis": "for dry cracked wheat; finely cracked wheat lands near the top of the range" }, "states": [ { "id": "standard", "label": "Standard, dry, uncooked, spooned and leveled", "density_g_per_ml": null, "range_min": 0.6298, "range_max": 0.7016, "withheld": true, "withheld_reason": "Sources span 149-166 g per cup, an 11% gap, just over the 10% tolerance. King Arthur gives 149 g, Bob's Red Mill's label 40 g per quarter cup (160 g per cup) and Janie's Mill's weight chart 166 g. Mills crack the wheat to different sizes and the bag rarely says which; no single figure is published.", "sources": [ { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "KA lists \"Cracked wheat\" at 1 cup = 5 1/4 oz = 149 g, density 0.630 g/mL.", "density_g_per_ml": 0.6298 }, { "name": "Bob's Red Mill Cracked Wheat hot cereal (producer label)", "ref": "Label serving 1/4 cup (40 g), as transcribed by FatSecret and Eat This Much (CalorieKing: 1.4 oz), extrapolating to 160 g per cup (density 0.676 g/mL). Ingredient: whole grain hard red wheat. 40 g is the reference amount for dry hot cereal, so this label does not decide a figure on its own.", "density_g_per_ml": 0.6763 }, { "name": "Janie's Mill, Weight Conversion Chart", "ref": "Cracked Wheat, 1 cup = 5.8 oz = 166 g (density 0.702 g/mL), measured by scooping fluffy spoonfuls into the cup and levelling gently without packing.", "density_g_per_ml": 0.7016 } ], "verified": "2026-10-26", "last_reviewed": "2026-10-26" } ], "yields": [], "notes": "A cup of dry cracked wheat weighs 149 to 166 g (5.3 to 5.9 oz). King Arthur gives 149 g, Bob's Red Mill's label works out to 160 g, and Janie's Mill weighs 166 g. The 11% spread is just over the 10% tolerance, so this entry publishes the range; 160 g is a sound working figure for a typical medium crack.\n\nCracked wheat is whole wheat berries cut into pieces between rollers or cutters and nothing else: raw, with the bran and germ still on. It is not bulgur, though shops and recipes often swap the names. Bulgur is wheat that has been parboiled, dried and then cracked, so it is already cooked and only needs soaking; cracked wheat is raw and needs real cooking, about 1 cup of grain to 3 cups of water as a hot cereal in Bob's Red Mill's method. Some imported bags labelled \"cracked wheat\" are bulgur, so check for the word parboiled.\n\nKing Arthur gives 1 cup of cracked wheat at 5 1/4 oz, 149 g. Janie's Mill, an Illinois stone mill, gives 5.8 oz, 166 g, measured by spooning the grain into the cup and levelling it without packing. Bob's Red Mill's cracked wheat cereal, milled from hard red wheat, labels a quarter cup as 40 g, 160 g per cup. USDA has no record for dry cracked wheat.\n\nWhy the sources differ: there is no standard size for cracked wheat. One mill cracks each berry into a few large pieces, another into many small ones, and most bags include fine flour-like bits as well. Small pieces and fines settle into the gaps between larger ones, so a finer crack weighs more per cup. Janie's heavy figure and King Arthur's light one are both plausible for the products they measured, and King Arthur's sits inside the range, so it is accepted.\n\nThe physical check: a wheat kernel is roughly 1.3 to 1.4 times as dense as water, and whole wheat berries weigh 192 g per cup on this site. Cracking a berry gives angular pieces that cannot sit as closely as rounded whole kernels, so the cup lightens to 149 to 166 g, the pieces filling about half of it. Bulgur, whose pieces were puffed and dried by parboiling, is lighter still: USDA weighs a cup of dry bulgur at 140 g, and bulgur on this site spans 140 to 172 g by grind.\n\nBob's Red Mill's label is kept with a caution. Forty grams is the regulatory reference amount for a dry hot cereal, so the label weight may be that serving with a quarter cup set beside it, not a weighed quarter cup. It agrees with the other two sources, but it does not decide the figure.\n\nPractical guidance: use 160 g per cup of dry cracked wheat, 80 g per half cup and 40 g per quarter cup, and expect a finely cracked product to land near the top of the range. For cracked wheat bread, where the grain is usually soaked first to soften it, weigh the dry grain and the soaking water separately." }, { "id": "cranberries-fresh", "schema_version": 3, "name": "Cranberries (fresh)", "synonyms": [ "fresh cranberries", "cranberries", "cranberries frozen", "frozen cranberries", "whole cranberries", "raw cranberries" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, whole loose in the cup", "density_g_per_ml": 0.4015, "sources": [ { "name": "USDA FoodData Central", "ref": "Cranberries, raw (SR Legacy, NDB 09078). Published: 1 cup whole = 95 g. Density 0.4015 g/mL. Verified via calorie back-calculation: 44 kcal per cup whole divided by 46 kcal per 100 g equals 95.6 g. The same record also lists 1 cup chopped at approximately 111 g (density 0.4692 g/mL), demonstrating an 17% packing difference from chopping.", "density_g_per_ml": 0.4015 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Cranberries (fresh or frozen)', 1 cup (99 g/cup). Density 0.4185 g/mL. Agrees with USDA to within 4.2%.", "density_g_per_ml": 0.4185 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Fresh cranberries are now the lightest fresh fruit on the site. USDA SR Legacy publishes raw cranberries at 95 grams per cup whole (density 0.4015 g/mL), and King Arthur publishes fresh or frozen at 99 grams per cup. The 4.2% gap between them is well inside the 10% milled tolerance and gives medium confidence in the published figure of 95 g/cup. Both sources describe the same standard state: whole raw berries loose in the cup, without shaking or packing.\n\nThe physical explanation for the low density is that cranberries have internal air chambers. A ripe cranberry actually floats in water, which is how commercial harvesters gather them: fields are flooded, the berries are dislodged from the vines, and they bob to the surface for skimming. That same air-cavity structure means each berry contributes only about 40% as much mass per unit volume as an equivalent-sized solid fruit would. A cup of cranberries at 95 grams has a density of 0.4015 g/mL, which is 40% of water and roughly half the density of most solid fresh berries. Cranberries are also small (about 1 centimeter across) and roughly spherical, so they pack with substantial interstitial air on top of the internal air chambers, compounding the low density.\n\nThe ordering across the site's fresh berries is now a clean physical narrative. Fresh cranberries at 95 g/cup are the lightest, followed by fresh raspberries at 123 g/cup (hollow drupelet aggregates), fresh blueberries at 140-170 g/cup (solid small spheres), and sliced strawberries at 166 g/cup (flat discs that stack efficiently). The ordering tracks internal structure: air chambers first, hollow cavities second, solid whole berries third, cut and stacked pieces last. Each step represents a real change in either the fruit's own density or the packing behavior of the shape it presents to the cup.\n\nCompared to the existing dried-cranberries entry, this fresh version is much lighter per cup. Dried cranberries publish at 114 to 160 g/cup (sugar category), reflecting the shift from a low-density fresh fruit with 87% water to a small dense particulate with 16% water. The mass of the sugar and structural fiber is preserved through drying, but the fruit shrinks in volume as water evaporates, producing a denser piece. King Arthur's chart lists dried cranberries at 114 g/cup, which sits at the low end of our published range for that entry.\n\nCategory assignment is milled, following the fresh berry precedent established by blueberries-fresh and raspberries-fresh. Fresh whole small round fruits belong in milled rather than sugar because they are water-containing solid pieces (even with internal air) rather than crystalline or hard particulate solids. The sugar category is reserved for granulated sugars, salts, chocolate chips, and small dried fruits like raisins and currants, all of which pack as small hard particles. The dried version of cranberries fits sugar cleanly at 114-160 g/cup, but the fresh version does not.\n\nUSDA also publishes a chopped state at approximately 111 g/cup, a 17% density increase from whole. That is a smaller gap than the whole-to-sliced difference for strawberries (15%) or the drupelet reorganization gaps seen in flax and pumpkin seeds. Cranberries are already close to a natural packing limit as whole berries because they are small and roughly spherical; chopping helps some but does not transform the packing behavior the way slicing does for a large irregular fruit like strawberries.\n\nConfidence is medium. Two authoritative sources (USDA SR Legacy and King Arthur) agree at 4.2%, and the physical mechanism is clear. Bakers should treat 95 g/cup as accurate for fresh whole cranberries in a scooped and leveled cup. Frozen cranberries follow the same figure because freezing does not meaningfully change the berry's packing density, which is why King Arthur groups fresh and frozen in a single row." }, { "id": "cream-of-tartar", "schema_version": 3, "name": "Cream of Tartar", "synonyms": [ "potassium bitartrate", "potassium acid tartrate", "potassium hydrogen tartrate", "E336" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": null, "range_min": 0.6087, "range_max": 0.6847, "withheld": true, "withheld_reason": "Producer and reference density varies from 144 g/cup (USDA composition reference at 3 g/teaspoon) to 162 g/cup (professional culinary references and CupOrGram baseline at 3.4 g/teaspoon), a 12.5% spread that slightly exceeds the milled tolerance of 10%. Cream of tartar is a fine crystalline potassium bitartrate powder that is slightly hygroscopic and packs differently based on settling from shipping and storage humidity. Real-world variance is genuine rather than measurement error.", "sources": [ { "name": "USDA FoodData Central – Leavening Agents, Cream of Tartar (NDB ID 18373)", "ref": "1 teaspoon = 3 g, giving 144 g/cup. Standard USDA composition reference used by most home-cooking nutrition databases. The 3g/tsp figure is a rounded convention typical of USDA nutrition-database entries for tiny-serving leaveners and spices, and may under-represent the true density of commercial cream of tartar powder slightly.", "fdc_id": 18373, "density_g_per_ml": 0.6087 }, { "name": "McCormick Culinary Cream of Tartar label (25 oz professional pack)", "ref": "0.8 g per 1/4 teaspoon serving = 3.2 g/teaspoon = 154 g/cup. McCormick's precise 0.8g figure (rather than a rounded 1g) suggests a genuine measurement rather than a labeling convention. McCormick describes their product as 'a dense powder with a slight acidic, distinctive flavor'; McCormick is the dominant retail brand for cream of tartar in North America.", "density_g_per_ml": 0.651 }, { "name": "Traditional Oven professional culinary reference", "ref": "3.38 g per teaspoon = 162 g/cup. Cites bulk density of commercially produced cream of tartar at 0.68 g/cm³, giving 162 g per US cup. This is the highest of the three reference sources and represents a less-settled or coarser-grind version of the product.", "density_g_per_ml": 0.6847 }, { "name": "CupOrGram baking conversion baseline", "ref": "162 g/cup baseline, matching the Traditional Oven professional value. CupOrGram documents a real-world practical range of 152-172 g/cup (a 6% band from their baseline), which they attribute to fine powders and leaveners settling during storage. This is consistent with the physical behavior of cream of tartar as a hygroscopic crystalline powder.", "density_g_per_ml": 0.6847 } ], "verified": "2026-09-22", "last_reviewed": "2026-09-22" } ], "yields": [], "notes": "Cream of tartar weighs 144-162 g/cup depending on source. USDA's food composition reference sits at the low end (3 g/teaspoon = 144 g/cup); McCormick's brand label lands in the middle (0.8 g per 1/4 teaspoon = 154 g/cup); professional culinary references and baking aggregators cluster at the high end (3.4 g/teaspoon = 162 g/cup).\n\nCream of tartar is potassium bitartrate, a fine crystalline powder that is a natural byproduct of winemaking. Tartaric acid crystallizes on the inside of wine barrels during fermentation; those crystals are collected, purified, and milled to produce the ingredient sold in the spice aisle. Chemically it is a mild acid salt with the formula KC4H5O6, sold under the European food additive code E336. In baking, it serves three main functions: stabilizing beaten egg whites for meringues and angel food cake, activating baking soda when baking powder is not available, and preventing sugar syrup from crystallizing in candy and caramel work.\n\nKing Arthur has no cream of tartar entry on their Ingredient Weight Chart, so this catalog entry is based entirely on producer labels and reference sources.\n\nThe density spread across sources reflects real physical variance rather than disagreement about what cream of tartar is. The powder is finely crystalline and packs differently depending on how much it has settled during shipping and storage, and it absorbs a small amount of ambient humidity that shifts its bulk density. Fresh from an unopened jar, cream of tartar typically packs closer to the 154-162 g/cup end of the range; after months of pantry storage in a household humidity cycle, it can compress toward the 144-150 g/cup end. Neither is 'correct' — both reflect the ingredient at different points in its handling life.\n\nUSDA's 3 g/teaspoon figure is worth understanding as a nutrition-database convention rather than a precision density measurement. USDA FNDDS and SR Legacy entries for leaveners typically round to convenient whole-gram values because the primary purpose of the database is calorie and macronutrient calculation, where small variations in leavener weight are nutritionally negligible. McCormick's 0.8 g per quarter-teaspoon figure, by contrast, is unusually precise for a supplement-style label, and their inclusion of the 0.8 rather than a rounded 1.0 suggests genuine measurement. The professional culinary reference at 0.68 g/cm³ bulk density (giving 162 g/cup) represents laboratory-condition measurements of newly-opened product.\n\nPractical baker guidance: cream of tartar is almost always used in tiny per-recipe volumes — 1/4 teaspoon per egg white for stable meringue, 1/2 teaspoon for a batch of snickerdoodles, 1 to 2 teaspoons in DIY baking powder combinations. At these amounts, the density variance across the range represents fractions of a gram and does not affect recipe outcomes. Weight-based measurement matters only for larger applications such as commercial candy production or bulk baking powder manufacture.\n\nCommon substitutions: for egg white stabilization, lemon juice or white vinegar at roughly 1/8 teaspoon per egg white can substitute for 1/8 teaspoon of cream of tartar, though the added liquid may slightly alter texture. For baking soda activation, cream of tartar is difficult to replicate — the acid substitution options are more application-specific (buttermilk, yogurt, molasses, or brown sugar can each provide the acid needed depending on the recipe). For DIY baking powder, the classic ratio is 1/2 teaspoon cream of tartar plus 1/4 teaspoon baking soda plus 1/4 teaspoon cornstarch to make 1 teaspoon of single-acting baking powder." }, { "id": "cumin-seeds", "schema_version": 3, "name": "Cumin Seeds, Whole", "synonyms": [ "whole cumin seeds", "jeera", "jeera whole", "cumin seed", "Cuminum cyminum seed" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, whole seeds, spooned and leveled", "density_g_per_ml": null, "range_min": 0.404, "range_max": 0.4602, "withheld": true, "withheld_reason": "USDA FoodData Central SR Legacy (96 g per US cup) and Chef's Resources (109 g per US cup) disagree by 13.5 percent, exceeding the 10 percent milled tolerance. Whole cumin seeds are elongated and ridged; measured density depends on settling method (loose versus tapped fill) and on seed origin and freshness (Indian jeera, Iranian, and Turkish cumin vary in seed size and volatile-oil content). King Arthur's chart is silent on this ingredient, so no third reference breaks the tie.", "sources": [ { "name": "USDA FoodData Central SR Legacy — Spices, cumin seed (whole)", "ref": "USDA reference record. 101 g per metric cup (96 g per US cup, density 0.4040 g/mL). Anchor for the low end of the observed range.", "density_g_per_ml": 0.404 }, { "name": "Chef's Resources — Dry Spice Yields chart", "ref": "Table lists Cumin Seeds at 3.84 oz/cup (109 g per US cup, density 0.4602 g/mL). Anchor for the high end of the observed range; 13.5 percent above the USDA figure, plausibly reflecting a tapped or settled measurement method versus USDA's looser fill.", "density_g_per_ml": 0.4602 } ], "verified": "2026-09-23", "last_reviewed": "2026-09-23" } ], "yields": [], "notes": "Whole cumin seeds pack at 96 to 109 g per US cup. USDA and Chef's Resources disagree by 13 percent, likely reflecting differences in measurement method, seed origin, or moisture content — enough variance that the site publishes the range rather than picking one figure.\n\nCumin seeds are the small (roughly 5 mm long and 2 mm wide), elongated, ridged seeds of Cuminum cyminum, an annual plant in the parsley family. Cumin is one of the most widely used spices globally, second only to black pepper by volume, and is a signature ingredient in Indian, Mexican, Middle Eastern, and North African cuisines. It shows up in curry powder, garam masala, taco seasoning, ras el hanout, and berbere. Cumin seeds are sold whole (tempered in hot ghee for Indian tadka, toasted whole for Mexican dishes, or steeped in brines and pickle mixes) and ground (the more common Western form). This entry covers the whole seed; the ground form has its own physical behavior and would be a separate entry.\n\nPublished sources disagree substantially. USDA FoodData Central's SR Legacy record for Spices, cumin seed (whole) gives 101 g per metric cup, which works out to 96 g per US cup at a density of 0.404 g/mL. Chef's Resources publishes 3.84 oz per cup (109 g, density 0.460 g/mL). The 13.5 percent spread exceeds the 10 percent milled tolerance held for this category. King Arthur's Ingredient Weight Chart does not list whole cumin seeds in any form, so there is no third reference figure to break the tie between USDA and CR.\n\nThe variance is plausibly genuine rather than measurement error. Cumin seeds are elongated with pronounced ridges, and elongated particles pack differently depending on how they settle in the cup. A loose, unshaken cup has more air trapped between randomly oriented seeds; a tapped or settled cup has seeds that have reoriented and nested more efficiently. Seed moisture and essential-oil content also drive density: fresh cumin with intact volatile oils is heavier per particle than older seeds that have lost oil to oxidation. Origin matters too — Indian cumin (jeera), Iranian cumin, and Turkish cumin are all sold as Cuminum cyminum but differ in average seed size and oil content. The USDA figure may represent a specific origin or measurement method that CR did not use.\n\nCumin seeds ground into powder shift density in the same direction as most other solid-seeded spices: the fluffy powder is lighter per cup than the whole seeds it came from. In the ground-mustard entry the site notes that ground mustard is roughly half the cup weight of whole mustard seeds; the ground-cumin pattern is milder (published ground figures cluster near 96 g per cup, similar to the low end of the whole-seed range) but goes in the same direction. Grinding replaces tightly nesting hard spheroids with a cohesive fluffy powder that bridges across the cup walls. This is the opposite of the ground-coriander pattern, where whole seeds contain internal hollows that ground powder fills, and ground coriander ends up denser than whole.\n\nFor recipes calling for whole cumin seeds by volume, the difference between the low and high end of published sources is about a rounded tablespoon per cup. In practice, most whole cumin uses (Indian tadka, blooming in hot fat, whole seed rubs) call for teaspoons rather than cups, and at that scale the variance is negligible. For bulk-batch recipes (spice blends, pickling, chili base) where a cup measure is used, weighing by gram is more accurate." }, { "id": "diastatic-malt-powder", "schema_version": 3, "name": "Diastatic Malt Powder", "synonyms": [ "diastatic malt", "malted barley flour", "diastatic barley malt", "active malt powder", "sprouted barley flour", "enzyme active malt" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, spooned", "density_g_per_ml": null, "range_min": 0.4058, "range_max": 0.7101, "withheld": true, "withheld_reason": "Composition variance dominates density. Pure malted barley flour products (King Arthur, Modern Mountain, Bakers Club) sit near 96 g/cup, matching regular barley flour density. Blended products with added dextrose and wheat flour (Red Star, Kalustyan's) pack denser at 140-170 g/cup because dextrose crystals fill gaps between flour particles.", "sources": [ { "name": "King Arthur Diastatic Malt Powder nutrition label", "ref": "1 teaspoon (2g) per product label. 2g x 48 tsp/cup = 96 g/cup, density 0.406 g/mL. King Arthur's product is 100% malted barley flour with no additives.", "density_g_per_ml": 0.4058 }, { "name": "Physical density inference from King Arthur barley flour chart entry", "ref": "King Arthur's Ingredient Weight Chart lists plain barley flour at 85 g/cup (density 0.359 g/mL). Since King Arthur's Diastatic Malt Powder is 100% malted barley flour, its physical density should sit near 85-96 g/cup. The 96 g/cup label figure likely reflects a rounded 1.77g/tsp level-scoop measurement rounded up to 2g.", "density_g_per_ml": 0.3593 }, { "name": "The Fresh Loaf baker measurement (Antilope, level packed scoop)", "ref": "Documented measurement: 1 teaspoon scooped and leveled = 3.5g, giving 168 g/cup at density 0.710 g/mL. Consistent with blended products containing malted barley flour plus dextrose plus wheat flour (Red Star, Kalustyan's composition).", "density_g_per_ml": 0.7101 }, { "name": "King Arthur Baking Company substitution reference blog", "ref": "King Arthur publishes 0.8g diastatic malt powder equivalent to 1g barley malt syrup for enzyme activity. Useful for recipe substitution but does not directly establish density.", "density_g_per_ml": null } ], "verified": "2026-09-22", "last_reviewed": "2026-09-22" } ], "yields": [], "notes": "TL;DR: Diastatic malt powder ranges 96-168 g/cup depending on composition. Pure malted barley flour products (King Arthur, Modern Mountain, Bakers Club) sit near 96 g/cup, while blends with dextrose and wheat flour (Red Star, Kalustyan's) pack denser at 140-170 g/cup. Used in bread baking as an enzyme booster, not a sweetener.\n\nDiastatic malt powder is finely ground sprouted barley that retains the amylase enzymes generated during germination. Those enzymes break flour starch into simple sugars, feeding yeast and improving crust color and rise. The typical dose is tiny — 0.5% to 2% of total flour weight, roughly 1/2 to 1 teaspoon per 3 cups of flour — because too much creates gummy, over-browned crumb. Common uses: bagels (dough and boiling water), pretzels, long-fermented sourdoughs, artisan breads made with organic or whole-wheat flour that doesn't already contain added barley malt, and pizza doughs where extended cold fermentation would otherwise deplete available sugars.\n\nCup weight varies substantially based on composition. King Arthur's Diastatic Malt Powder is 100% malted barley flour with no additives; their nutrition label lists 1 teaspoon = 2g, giving 96 g/cup. Modern Mountain Baking Company's version is also 100% malted barley flour, similar density. Blended products like Red Star Diastatic Malt (malted barley flour + wheat flour + dextrose) and Kalustyan's diastatic malt (same ingredient set) pack denser because the added dextrose is a fine crystalline sugar that fills gaps between flour particles. Bakers who measure by level scoop report cup weights up to 168 g/cup for blended products, a 75% variance from King Arthur's pure figure.\n\nPhysical density comparison: pure malted barley flour behaves like regular barley flour, which King Arthur lists at 85 g/cup. The 96 g/cup King Arthur figure for diastatic malt is 13% higher than plain barley flour, reflecting either the slight density change from sprouting and drying or label rounding of the 1.77g per level teaspoon actual measurement to 2g. Blended products with dextrose (which alone packs at roughly 200 g/cup as a fine crystal) can push density much higher depending on blend ratio.\n\nSubstitution equivalence with barley malt syrup: King Arthur publishes 0.8g diastatic malt powder per 1g barley malt syrup. That means for a recipe calling for 1 tablespoon barley malt syrup (21g), substitute roughly 17g diastatic malt powder (about 2 teaspoons of a pure-barley-flour product like King Arthur's). The math accounts for the malt syrup's higher moisture content and the concentrated enzyme activity in the dried powder. Diastatic malt powder is enzymatically active in ways barley malt syrup is not once heated, so use with caution — start at 0.1-0.2% flour weight and work up.\n\nDistinct from non-diastatic malt powder: the two products look similar but function differently. Non-diastatic malt powder (King Arthur lists at 144 g/cup) has had its enzymes deactivated by heat during production. It provides sweetness, flavor, and browning to baked goods but does not accelerate fermentation. Diastatic malt provides enzyme activity for improved rise; non-diastatic provides flavor and color only. Bakers should never assume interchangeability — a recipe calling for diastatic malt will fall flat if non-diastatic is substituted (the enzyme boost is lost), while over-dosed diastatic can turn a non-diastatic recipe into a gummy over-browned mess.\n\nDistinct from malted milk powder: malted milk powder contains dry milk solids, sugar, and malt extract, a completely different product intended for chocolate malt beverages and malt balls. Not a substitute for either diastatic or non-diastatic malt powder in bread applications. King Arthur lists malted milk powder at 140 g/cup — coincidentally similar to non-diastatic malt powder by weight but with completely different functional behavior.\n\nPractical baker recommendation: for any recipe calling for diastatic malt by teaspoon or tablespoon volume, weight is the reliable measure — dose 0.5% to 1% of flour weight for most bread applications, up to 2% for the strongest fermentation boost. Start conservatively; excess diastatic malt turns crumb gummy and crust overly dark. Check the ingredient list on your product: pure malted barley flour products deliver the strongest enzyme activity per gram, while blends are diluted with dextrose or wheat flour and require slightly higher doses to achieve equivalent enzyme activity." }, { "id": "diced-bell-pepper", "schema_version": 3, "name": "Diced Bell Pepper", "synonyms": [ "chopped bell pepper", "diced green pepper", "diced red pepper", "chopped green pepper", "diced sweet pepper", "bell pepper diced" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, raw, diced or chopped, spooned and leveled", "density_g_per_ml": 0.6298, "range_min": null, "range_max": null, "sources": [ { "name": "USDA SR Legacy \"Peppers, sweet, green, raw\" (FDC 170427)", "ref": "USDA Standard Release publishes 1 cup chopped = 149 g (density 0.630 g/mL), 1 tbsp = 9.3 g (149 g per cup) and 1 cup sliced = 92 g. Water 93.9 g, carbohydrate 4.64 g, fibre 1.7 g per 100 g. USDA's red pepper record (FDC 170108) carries identical portion weights.", "fdc_id": 170427, "density_g_per_ml": 0.6298 }, { "name": "The Culinary Institute of America, Conversions chart", "ref": "Bell pepper, 1 cup diced = 5.2 oz = 147 g (density 0.621 g/mL).", "density_g_per_ml": 0.6213 }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "KA lists \"Bell peppers (fresh)\" at 1 cup = 5 oz = 142 g, density 0.600 g/mL; the same 5 oz as KA gives for diced onions, celery and carrots.", "density_g_per_ml": 0.6002 } ], "verified": "2026-10-26", "last_reviewed": "2026-10-26" } ], "yields": [], "notes": "A cup of diced bell pepper weighs 149 g (5.3 oz). USDA weighs a cup of chopped sweet pepper at 149 g, the Culinary Institute of America gives 147 g for diced, and King Arthur 142 g. All three sit within 5% of each other, so this entry publishes USDA's figure, and King Arthur's agrees within tolerance.\n\nBell peppers are the sweet, mild members of Capsicum annuum, sold green, before they ripen, and red, yellow or orange once ripe. They are mostly water: USDA puts green peppers at 93.9% water and 4.6% carbohydrate, and red peppers carry a little more sugar. A pepper is a hollow fruit with a thin wall, so diced pepper is really a pile of small, flat squares cut from that wall rather than cubes. That shape matters for the cup: flat pieces lie against each other and leave less air than the layers of diced onion or the arcs of diced celery.\n\nUSDA SR Legacy \"Peppers, sweet, green, raw\" (FDC 170427) lists 1 cup chopped at 149 g, 1 tablespoon at 9.3 g, which scales to the same 149 g per cup, and 1 cup sliced at 92 g. USDA's red pepper record (FDC 170108) carries exactly the same portion weights, so colour does not change the figure in USDA's measurements; it is not counted as a separate source here. The Culinary Institute of America's conversion chart gives 1 cup diced bell pepper at 5.2 oz, 147 g. King Arthur gives 1 cup of fresh bell peppers at 5 oz, 142 g.\n\nThe physical check: tissue that is 94% water is roughly as dense as water, so a cup of dice at 149 g is about three fifths pepper and two fifths air between the pieces, a tight fill for chopped vegetables that fits the flat pieces. USDA's own tablespoon lands on the same density, which is a good sign the cup figure is not a fluke. Sliced strips leave far more air: USDA's 92 g per cup sliced, and a school portion guide's 1.75 oz per half cup of strips, about 99 g per cup, are a different measure and should not be used for diced pepper.\n\nKing Arthur's 142 g is the same 5 oz the chart gives for diced onions, celery and carrots and for sliced olives, a round working figure. For bell pepper it lands within 5% of USDA and the Culinary Institute and is accepted.\n\nFrozen diced peppers are another case. Kroger, Food Club, Hanover and ShopRite print 3/4 cup at 83 to 85 g, at or just under the 85 g reference serving for vegetables with the nearest household measure beside it. That works out to 111 to 113 g per cup, but it is not a measured density, so it is not used here. Measure frozen dice straight from the bag and expect a lighter cup than fresh.\n\nPractical guidance: use 149 g per cup for diced or chopped bell pepper, 75 g per half cup, 37 g per quarter cup and about 9 g per tablespoon. Pat washed peppers dry before dicing, since water clinging to small pieces adds weight and steams rather than sautés. For fajitas and stir-fries, where peppers are cut into strips, use about 92 g per cup, or better, count the peppers." }, { "id": "diced-carrots", "schema_version": 3, "name": "Diced Carrots", "synonyms": [ "chopped carrots", "diced carrot", "chopped carrot", "carrots diced", "carrot cubes" ], "category": "milled", "default_state": "standard", "confidence": "low", "working_figure": { "grams": 142, "basis": "for carrots diced by hand to about 1/4 inch" }, "states": [ { "id": "standard", "label": "Standard, raw, diced or chopped, spooned and leveled", "density_g_per_ml": null, "range_min": 0.541, "range_max": 0.6002, "withheld": true, "withheld_reason": "Sources span 128-142 g per cup, an 11% gap, just over the 10% tolerance. The Culinary Institute of America, USDA's school Food Buying Guide and King Arthur all give 142 g for diced or chopped carrot; USDA SR Legacy's cup of chopped carrot is 128 g. No single figure is published.", "sources": [ { "name": "USDA SR Legacy \"Carrots, raw\" (FDC 170393)", "ref": "USDA Standard Release publishes 1 cup chopped = 128 g (density 0.541 g/mL), 1 cup strips or slices = 122 g and 1 cup grated = 110 g. Water 88.3 g, carbohydrate 9.58 g (sugars 4.74 g), fibre 2.8 g per 100 g.", "fdc_id": 170393, "density_g_per_ml": 0.541 }, { "name": "USDA Food Buying Guide for Child Nutrition Programs, carrots, fresh, chopped", "ref": "Yield table: 1 lb as purchased = 0.83 lb trimmed, peeled carrots, 10.60 quarter-cup servings of raw chopped carrot per pound, which is 142 g per cup (density 0.600 g/mL).", "density_g_per_ml": 0.6002 }, { "name": "The Culinary Institute of America, Conversions chart", "ref": "Carrot, 1 cup diced = 5 oz = 142 g (density 0.600 g/mL).", "density_g_per_ml": 0.6002 }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "KA lists \"Carrots (diced)\" at 1 cup = 5 oz = 142 g, density 0.600 g/mL; the same 5 oz as KA gives for diced onions, celery and bell peppers.", "density_g_per_ml": 0.6002 } ], "verified": "2026-10-26", "last_reviewed": "2026-10-26" } ], "yields": [], "notes": "A cup of diced carrots weighs 128 to 142 g (4.5 to 5 oz). The Culinary Institute of America, USDA's school Food Buying Guide and King Arthur all give 142 g, while USDA's own cup of chopped carrot is 128 g. The gap is 11%, just over the 10% tolerance, so this entry publishes the range; for a quarter-inch dice spooned into the cup, 142 g is the figure most sources share.\n\nCarrots are 88% water by USDA's figure, with about 10% carbohydrate, about half of it sugar, and they are firmer than most vegetables. Diced carrot is the one true cube among the common aromatics. Onion breaks into curved layers and celery into arcs, but a carrot cuts into small solid cubes, and cubes of a firm vegetable settle into a cup in a fairly predictable way.\n\nUSDA SR Legacy \"Carrots, raw\" (FDC 170393) lists 1 cup chopped at 128 g, 1 cup of strips or slices at 122 g and 1 cup grated at 110 g. USDA's Food Buying Guide for child nutrition programs, the yield tables used in school kitchens, gives 10.6 quarter-cup servings of raw chopped carrot per pound as purchased at an 83% trim yield, which is 142 g per cup. The Culinary Institute of America's conversion chart gives 1 cup diced at 5 oz, 142 g. King Arthur gives 1 cup diced at 5 oz, 142 g.\n\nKing Arthur's figure is the same 5 oz the chart uses for diced onions, celery and bell peppers, a round working figure. For carrots, unlike onion and celery, it matches two sources that reach 142 g by different routes, the Food Buying Guide by yield arithmetic and the Culinary Institute by direct conversion, so it is not a correction.\n\nThe physical check: carrot tissue is about as dense as water or a little more, so a cup of dice at 142 g is about three fifths carrot and two fifths air, which is how small cubes settle when spooned into a cup. USDA's 128 g is the same cup holding a tenth less carrot, most likely a coarser, more irregular chop that leaves bigger gaps. Grated carrot is a different measure: fine shreds trap more air, and this site gives grated carrot its own entry at 99 to 130 g per cup.\n\nSliced carrots sit with the dice. The Food Buying Guide counts a pound of ready-to-use sliced carrots at about 3 1/8 cups, 145 g per cup, and a school portion guide gives 2.5 oz per half cup of slices, 142 g per cup; USDA's slices are lighter at 122 g.\n\nPractical guidance: for carrots diced by hand to about 1/4 inch, use 142 g per cup, 71 g per half cup and 36 g per quarter cup; for a rough, chunky chop, closer to 128 g. The classic mirepoix ratio is by weight, two parts onion to one part each of carrot and celery, so for soups, stocks and braises weigh the three together rather than measuring each by the cup." }, { "id": "diced-celery", "schema_version": 3, "name": "Diced Celery", "synonyms": [ "chopped celery", "celery diced", "diced celery stalks", "chopped celery stalks", "celery chopped" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, raw, diced or chopped, spooned and leveled", "density_g_per_ml": null, "range_min": 0.4269, "range_max": 0.6002, "withheld": true, "withheld_reason": "Sources span 101-142 g per cup, a 41% gap, over the 10% tolerance. USDA's cup of chopped celery is 101 g, but its own tablespoon works out to 120 g; USDA's school Food Buying Guide gives 122-141 g for diced celery; the Culinary Institute of America gives 113 g; King Arthur gives 142 g. No single figure is published.", "sources": [ { "name": "USDA SR Legacy \"Celery, raw\" (FDC 169988)", "ref": "USDA Standard Release publishes 1 cup chopped = 101 g (density 0.427 g/mL); the same record lists 1 tbsp = 7.5 g (120 g per cup) and a medium 7 1/2-8 inch stalk at 40 g. Water 95.4 g per 100 g.", "fdc_id": 169988, "density_g_per_ml": 0.4269 }, { "name": "USDA Food Buying Guide for Child Nutrition Programs, celery, fresh, trimmed, diced", "ref": "Yield table: 1 lb as purchased = 0.83 lb ready to cook, 12.30 quarter-cup servings of diced celery, which is 122 g per cup (density 0.517 g/mL).", "density_g_per_ml": 0.5157 }, { "name": "USDA Food Buying Guide for Child Nutrition Programs, celery, diced, ready-to-use", "ref": "Yield table: 1 lb = 1 lb ready to cook, 12.90 quarter-cup servings, which is 141 g per cup (density 0.595 g/mL).", "density_g_per_ml": 0.596 }, { "name": "The Culinary Institute of America, Conversions chart", "ref": "Celery, 1 cup diced = 4 oz = 113 g (density 0.478 g/mL); 1 stalk = about 1/2 cup diced = 2 oz = 57 g.", "density_g_per_ml": 0.4776 }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "KA lists \"Celery (diced)\" at 1 cup = 5 oz = 142 g, density 0.600 g/mL; the same 5 oz as KA gives for diced carrots, onions, bell peppers and sliced olives.", "density_g_per_ml": 0.6002 } ], "verified": "2026-10-26", "last_reviewed": "2026-10-26" } ], "yields": [], "notes": "A cup of diced celery weighs 101 to 142 g (3.6 to 5 oz). USDA's cup of chopped celery is 101 g, its tablespoon works out to 120 g, USDA's school Food Buying Guide gives 122-141 g for diced celery, the Culinary Institute of America 113 g, and King Arthur 142 g. The sources disagree by more than the 10% tolerance, so this entry publishes the range.\n\nCelery is 95% water, among the wettest of vegetables, and its crisp, fibrous stalks are close to the density of water. Diced celery is a pile of small crescents and arcs, the cross-section of a curved, ribbed stalk, and those shapes do not nest well. How much air they trap depends on the size of the dice, how much of the hollow inner curve each piece keeps, and how hard the cup is pressed.\n\nUSDA SR Legacy \"Celery, raw\" (FDC 169988) lists 1 cup chopped at 101 g, but its 1 tablespoon at 7.5 g scales to 120 g per cup, so USDA's own record spans 19%. USDA's Food Buying Guide, the yield tables used in school kitchens, gives 12.3 quarter-cup servings of diced celery per pound as purchased at 83% yield, which is 122 g per cup, and 12.9 servings for ready-to-use diced celery, 141 g per cup. The Culinary Institute of America's conversion chart gives 1 cup diced at 4 oz, 113 g, and one stalk at about half a cup.\n\nKing Arthur lists diced celery at 1 cup = 5 oz = 142 g, at the top of the range. The same 5 oz appears in King Arthur's chart for diced onions, carrots and bell peppers and for sliced olives, so it reads as a round working figure rather than a measurement of celery. It is close to the Food Buying Guide's ready-to-use dice, which is cut by machine into small even pieces that pack tightly, so it is not rejected, but for celery diced by hand it is on the heavy side.\n\nPre-cut tubs are not much help: Wegmans prints 2/3 cup at 85 g, the reference serving for vegetables, and H-E-B describes its 7-oz tub of chopped celery as about 2 cups, roughly 99 g per cup.\n\nPractical guidance: for celery diced by hand to about 1/4 inch and spooned into the cup, use 115-120 g; for a coarser chop loosely filled, about 100 g; for small machine-cut dice, up to 140 g. A medium stalk weighs about 40 g by USDA's figure and gives about 1/3 cup diced; the Culinary Institute counts a larger stalk as half a cup. For mirepoix, stuffing and soups, where celery is one part of a ratio, weigh it alongside the onion and carrot." }, { "id": "diced-leeks", "schema_version": 3, "name": "Diced Leeks", "synonyms": [ "chopped leeks", "diced leek", "chopped leek", "raw diced leeks", "leek pieces" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, raw, white and light green parts, diced or chopped, spooned and leveled", "density_g_per_ml": 0.3762, "range_min": null, "range_max": null, "sources": [ { "name": "USDA SR Legacy \"Leeks, (bulb and lower leaf-portion), raw\" (FDC 169246)", "ref": "USDA Standard Release publishes 1 cup = 89 g (density 0.376 g/mL), its only cup portion for raw leeks, given without naming the cut; it also counts one leek at 89 g. Water 83.0 g, carbohydrate 14.2 g, fibre 1.8 g, protein 1.5 g, fat 0.3 g per 100 g.", "fdc_id": 169246, "density_g_per_ml": 0.3762 }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "KA lists \"Leeks (diced)\" at 1 cup = 3 1/4 oz = 92 g, density 0.389 g/mL.", "density_g_per_ml": 0.3889 }, { "name": "The Culinary Institute of America, Conversions chart", "ref": "Leek, 1 cup sliced = 4 oz = 113 g; 1 leek, white and green parts = 1 1/4 cups sliced (approx.) = 6 oz = 170 g. Sliced rings, not dice, so not used for the diced figure." } ], "verified": "2026-10-26", "last_reviewed": "2026-10-26" } ], "yields": [], "notes": "A cup of diced raw leeks weighs 89 g (3.1 oz). USDA weighs a cup of raw leek at 89 g and King Arthur gives 92 g for diced leeks, 3% apart, so this entry publishes USDA's figure and King Arthur's agrees.\n\nLeeks (Allium ampeloprasum, porrum group) are the mildest member of the onion family. Cooks use the white and light green part, the bulb and lower leaf that grew under the soil, and cut away the tough dark green tops. A leek is not a ball of thick layers like an onion but a tight roll of thin leaf sheaths. Dicing it gives small, thin, curved squares that separate into loose flakes, and loose flakes trap a lot of air.\n\nUSDA SR Legacy \"Leeks, (bulb and lower leaf-portion), raw\" (FDC 169246) lists 1 cup at 89 g and puts leeks at 83% water, 14.2% carbohydrate and 1.8% fibre, drier and sweeter than onion. The record does not name the cut for its cup, but it is the only cup USDA gives for raw leeks, and it lands within 3% of King Arthur's diced figure of 3 1/4 oz, 92 g. King Arthur's figure is accepted.\n\nThe physical check: tissue that is 83% water with sugars and fibre is a little denser than water, about 1.05 g per millilitre, so 89 g in a cup means the flakes fill just over a third of it. That is lighter than diced onion (113 to 172 g per cup on this site) or diced celery (101 to 142 g), and it fits the shape: an onion's layers are several millimetres thick, a leek's sheaths much thinner, so leek dice have more surface and more gaps for each gram of leek.\n\nSlicing into rings changes the figure. The Culinary Institute of America weighs a cup of sliced leek at 4 oz, 113 g, and gives one leek's white and green parts as about 1 1/4 cups sliced, 170 g. Rings that hold together stack more tightly than loose flakes, so sliced leeks weigh about a quarter more per cup than diced. That figure is kept apart from this entry.\n\nRetail labels are no help. Trader Joe's sliced leeks and Frieda's leeks print \"1 cup (85 g)\", and 85 g is the reference serving for vegetables, so the gram figure comes from the regulation rather than from a weighed cup. It happens to sit close to USDA.\n\nCooking collapses the flakes. Health Canada weighs 125 mL of chopped, boiled and drained leeks at 55 g, about 104 g per cup, heavier per cup than raw dice because soft cooked leek packs into the cup with little air.\n\nPractical guidance: use 89 g per cup for raw diced or chopped leek, 45 g per half cup and about 6 g per tablespoon. USDA counts one leek at 89 g, about a cup of dice; the Culinary Institute's larger leek gives 1 1/4 cups of slices. Leeks hide grit between their layers, so dice first, then wash the pieces and drain them well, since water clinging to the flakes adds weight to the cup." }, { "id": "diced-onion", "schema_version": 3, "name": "Diced Onion", "synonyms": [ "chopped onion", "chopped onions", "diced onions", "diced yellow onion", "onion diced" ], "category": "milled", "default_state": "standard", "confidence": "low", "working_figure": { "grams": 150, "basis": "for a 1/4-inch dice spooned into the cup and leveled" }, "states": [ { "id": "standard", "label": "Standard, raw, diced or chopped, spooned and leveled", "density_g_per_ml": null, "range_min": 0.4776, "range_max": 0.727, "withheld": true, "withheld_reason": "Sources span 113-172 g per cup, a 52% gap, over the 10% tolerance. USDA's chopped onion is 160 g and Health Canada's 162 g; USDA's school Food Buying Guide gives 145-172 g for diced and chopped onion; King Arthur gives 142 g; the Culinary Institute of America gives 113 g for diced. The size of the dice and how hard the cup is filled decide it. No single figure is published.", "sources": [ { "name": "USDA SR Legacy \"Onions, raw\" (FDC 170000)", "ref": "USDA Standard Release publishes 1 cup chopped = 160 g (density 0.676 g/mL), 1 tbsp chopped = 10 g and 1 cup sliced = 115 g. Water 89.1 g per 100 g.", "fdc_id": 170000, "density_g_per_ml": 0.6763 }, { "name": "Health Canada, Nutrient Value of Some Common Foods (2008)", "ref": "Onions, yellow, chopped, raw: 60 mL = 41 g, which is 161.7 g per US cup (density 0.683 g/mL).", "density_g_per_ml": 0.6833 }, { "name": "USDA Food Buying Guide for Child Nutrition Programs, onions, fresh, diced 1/4-inch, prepackaged", "ref": "Yield table: 1 lb as purchased = 1 lb (about 3 cups) ready to cook, 12.00 quarter-cup servings, which is 151 g per cup (density 0.639 g/mL).", "density_g_per_ml": 0.6382 }, { "name": "USDA Food Buying Guide for Child Nutrition Programs, onions, fresh whole, chopped", "ref": "Yield table: 1 lb as purchased = 0.88 lb ready to cook, 9.30 quarter-cup servings per pound as purchased, which is 172 g per cup (density 0.726 g/mL).", "density_g_per_ml": 0.727 }, { "name": "The Culinary Institute of America, Conversions chart", "ref": "Onion, 1 cup diced = 4 oz = 113 g (density 0.478 g/mL); 1 medium onion = about 1 3/4 cups diced = 7 oz = 198 g.", "density_g_per_ml": 0.4776 }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "KA lists \"Onions (fresh, diced)\" at 1 cup = 5 oz = 142 g, density 0.600 g/mL; the same 5 oz as KA gives for diced carrots, celery, bell peppers and sliced olives.", "density_g_per_ml": 0.6002 } ], "verified": "2026-10-26", "last_reviewed": "2026-10-26" } ], "yields": [], "notes": "A cup of diced onion weighs 113 to 172 g (4 to 6.1 oz), depending on how fine the dice is and how hard the cup is filled. USDA's chopped onion is 160 g, the USDA school Food Buying Guide's 1/4-inch dice is 151 g, King Arthur says 142 g and the Culinary Institute of America 113 g. The sources disagree by far more than the 10% tolerance, so this entry publishes the range.\n\nOnion is about 89% water by USDA's figures, and its flesh is nearly as dense as water. So the onion itself is not what varies; the air between the pieces is. Small pieces from a fine chop nest into each other and leave little air, while a coarse half-inch dice stacks like building blocks with gaps at every corner. Moisture matters too: chopped onion gives up juice and slumps, so a cup filled with freshly chopped onion and pressed down weighs more than one spooned in loosely.\n\nUSDA SR Legacy \"Onions, raw\" (FDC 170000) lists 1 cup chopped at 160 g and 1 tablespoon chopped at 10 g, which agree, and 1 cup sliced at 115 g. Health Canada's table gives chopped yellow onion at 41 g per 60 mL, 162 g per US cup. USDA's Food Buying Guide, the yield tables used in US school kitchens, gives about 3 cups per pound for prepackaged 1/4-inch diced onion, 151 g per cup, and works out to 172 g per cup for whole onions chopped by hand. The Culinary Institute of America's conversion chart gives 1 cup diced at 4 oz, 113 g, and a medium onion at about 1 3/4 cups diced.\n\nKing Arthur lists diced onion at 1 cup = 5 oz = 142 g, inside the range. The same 5 oz appears in King Arthur's chart for diced carrots, celery and bell peppers and for sliced olives, which have very different shapes and water contents, so it reads as a round working figure rather than a measurement of each vegetable; for onion it happens to fall in the middle.\n\nFrozen chopped onion bags are no help: they print 85 g, the reference serving for vegetables, beside either 2/3 or 3/4 cup.\n\nPractical guidance: for a typical 1/4-inch dice spooned into the cup and leveled, use 150 g; for a fine chop pressed down, 160 g; for a coarse half-inch dice, about 115-120 g. A medium onion, about 110 g trimmed by USDA's portion, gives roughly 3/4 cup chopped; a large one, 150 g, about 1 cup. When a recipe's flavour depends on the onion, as in a soffritto, French onion soup or a curry base, weigh it: the difference between a coarse and a fine cup is a third more onion." }, { "id": "dried-apples", "schema_version": 3, "name": "Dried apples", "synonyms": [ "dried apple pieces", "dried diced apples", "sulfured dried apples", "dehydrated apple pieces", "apple rings (diced)" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, dried pieces or dice loose in the cup", "density_g_per_ml": 0.3635, "sources": [ { "name": "USDA FoodData Central", "ref": "Apples, dried, sulfured, uncooked (SR Legacy). Published: 1 cup = 86 g. Density 0.3635 g/mL. Cup mass derived from published portion ratio (209 kcal per cup / 243 kcal per 100 g = 86.0 g/cup), cross-checked against 1 oz portion (69 kcal / 243 kcal × 100 g = 28.4 g, matching 1 oz).", "density_g_per_ml": 0.3635 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Apples (dried, diced)', 1 cup = 85 g. Density 0.3592 g/mL.", "density_g_per_ml": 0.3592 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Two sources agree within measurement precision. USDA FoodData Central publishes Apples, dried, sulfured, uncooked (SR Legacy) at 1 cup = 86 g, implying a density of 0.3635 g/mL. King Arthur's Ingredient Weight Chart lists 'Apples (dried, diced)' at 1 cup = 85 g, implying 0.3592 g/mL. The gap between them is 1.18 percent, well inside any reasonable tolerance, so this entry publishes USDA's figure of 86 g per cup and names both sources. The USDA cup mass was derived from the published portion ratio (209 kcal per cup divided by 243 kcal per 100 g = 86.0 g/cup), confirmed via multiple USDA-data mirrors and cross-checked against the 1 ounce portion.\n\nDried apples pack at unusually low density for the milled category. At 0.36 g/mL, they sit below almost every other food this site tracks. Almond flour publishes here at approximately 0.4 g/mL, whole wheat flour at approximately 0.5, and all-purpose flour at approximately 0.53 g/mL. Dried apples are substantially lighter than any of these, and dramatically lighter than other dried fruits on this site: dried apricot halves publish at 0.55 g/mL, dried figs at 0.63, currants at 0.61, and chopped dates at 0.64. The reason is the drying process combined with source water content. Apple flesh has an unusually high water content when fresh, roughly 85 percent water by weight, and removing that water leaves behind a light, porous, air-filled structure rather than a dense compact piece. Dried apricots, figs and dates dry from lower initial water content (around 70 to 80 percent) and retain more of their intrinsic density after moisture loss.\n\nThe comparison to apple sauce, published elsewhere on this site in the liquid category at close to 1 g/mL like other water-based purees, is instructive. Apple sauce retains all of the fruit's original water. Removing the water from apple flesh does not concentrate it into a dense piece: the piece expands and holds internal air during drying, then collapses only partially on cooling. This is why dehydrated apple slices look like puffy chips, and why a cup of dried apples weighs less than a third of what a cup of apple sauce weighs even though both are the same fruit.\n\nProduct variants: sulfured versus unsulfured dried apples differ in preservation method but pack at essentially the same density. Dried apple rings (whole slices with the core cut out) pack differently from diced pieces because rings can nest and stack rather than tumble; ring-based cup measurements are approximately 20 percent lower than diced measurements per third-party sources, though no authoritative second source lists rings separately. Freeze-dried apples are a distinct product with much lower density (approximately 0.15 to 0.20 g/mL) because freeze-drying preserves nearly all of the piece's internal air; freeze-dried apple entries will be added when authoritative sourcing supports them.\n\nDried apples are placed in the milled category alongside other chunked dried fruits (dried apricots, dried figs, chopped dates on this site). The category rule tracks physical packing behavior: irregular semi-rigid pieces pack by scoop with air gaps in the same way as whole grains and nuts, regardless of the specific density magnitude. The 10 percent category tolerance applies here, and the near-zero observed gap between sources sits comfortably inside it.\n\nNo standards body publishes a bulk density for dried apples. Codex Alimentarius has commodity standards for dried fruits covering moisture content and preservation methods but not physical density. Two independent authoritative sources agree within measurement precision, so this entry is held at medium confidence. A third independent source, such as a professional culinary reference or a producer's laboratory measurement, matching within tolerance would move it to high confidence.", "last_reviewed": "2026-09-21" }, { "id": "dried-apricots", "schema_version": 3, "name": "Dried apricots", "synonyms": [ "sulfured dried apricots", "dried apricot halves", "diced dried apricots", "chopped dried apricots", "dried prunus armeniaca" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, halves or diced pieces loose in the cup", "density_g_per_ml": 0.5495, "sources": [ { "name": "USDA FoodData Central", "ref": "Apricots, dried, sulfured, uncooked (SR Legacy). Published: 1 cup, halves = 130 g. Density 0.5495 g/mL. Confirmed via proportional consistency across 0.5 cup (65 g) and 1.5 cup (195 g) portions.", "density_g_per_ml": 0.5495 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Apricots (dried, diced)', 1/2 cup = 64 g (128 g/cup). Density 0.5411 g/mL. KA measures diced pieces where USDA measures halves; both figures land within 1.5% because dried apricot pieces pack loosely regardless of shape.", "density_g_per_ml": 0.5411 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Two sources agree within tolerance across different piece states, an unusual pattern that reflects the physical behavior of sticky dried fruit. USDA FoodData Central publishes Apricots, dried, sulfured, uncooked (SR Legacy) at 1 cup halves = 130 g, implying a density of 0.5495 g/mL. King Arthur's Ingredient Weight Chart lists 'Apricots (dried, diced)' at 1/2 cup = 64 g, extrapolating to 128 g per cup and 0.5411 g/mL. The gap between them is 1.54 percent, well inside the 10 percent milled tolerance, so this entry publishes USDA's figure of 130 g per cup and names both sources. The USDA cup portion is confirmed by proportional consistency across cup fractions: 0.5 cup halves at 65 g and 1.5 cup halves at 195 g both divide to the same 130 g per cup.\n\nThe interesting feature here is that USDA measures halves and King Arthur measures diced pieces, yet the figures nevertheless nearly coincide. For most nuts and grains on this site, cutting or chopping a whole piece changes its cup weight noticeably: chopped walnuts at 117 g per cup are denser than walnut halves at 99 (USDA) or 128 (KA), and chopped hazelnuts at 115 are meaningfully lighter than whole hazelnuts at 135. Dried apricots do not show this pattern because the pieces are sticky and semi-rigid, dominated by concentrated glucose and fructose after moisture loss. They do not slide freely against each other into settled arrangements, and their intrinsic density of roughly 1.35 to 1.45 g/mL is only partly realized in cup measurements. The apparent 0.55 g/mL indicates about 40 percent air by volume regardless of piece shape. Whether the pieces are halves or dice, they form irregular clumps with similar overall air content.\n\nThis is why dried apricots publish at a single figure with medium confidence despite the source-state mismatch: the physical mechanism of sticky-fruit clumping makes the halves-versus-diced distinction less important than it would be for nuts. A reader converting from cups to grams gets a workable answer whether they scoop halves or chop first. The 1.54 percent gap between USDA's halves and King Arthur's diced sits well inside the 10 percent milled tolerance and represents measurement noise plus normal fill variation, not a meaningful state-dependent density difference.\n\nProduct variants: sulfured versus unsulfured dried apricots differ in preservation method but pack at essentially the same density. Sulfured apricots retain their bright orange color and slightly higher moisture; unsulfured are darker brown and slightly drier, which may produce a small density increase (perhaps 3 to 5 percent) but no authoritative source publishes separate cup portions. Turkish dried apricots (typically whole pitted) and California dried apricots (typically halved) trade at similar cup weights per USDA data. Sweetened or infused dried apricots, sometimes marketed as 'soft' dried apricots, contain added glycerin or corn syrup that increases moisture and density; these would earn separate entries if a second authoritative source becomes available.\n\nDried apricots are placed in the milled category alongside other dried-fruit pieces (chopped dates on this site sits in the same category for the same physical reason). The category rule tracks packing behavior: irregular semi-rigid pieces pack by scoop with air gaps in the same way as whole grains and nuts. The 10 percent category tolerance applies here, and the 1.54 percent observed gap between sources sits comfortably inside it. Raisins on this site are categorized as sugar rather than milled because their smaller particle size and packing behavior aligns more closely with granulated sugar than with chunked dried fruit.\n\nNo standards body publishes a bulk density for dried apricots. Codex Alimentarius has a standard for dried apricots covering moisture content, defect tolerances and sulfur dioxide limits but not physical density. Two independent authoritative sources agree within tolerance, so this entry is held at medium confidence. A third independent source, such as a professional culinary reference or a producer's laboratory measurement, matching within tolerance would move it to high confidence.", "last_reviewed": "2026-09-21" }, { "id": "dried-egg-whites", "schema_version": 3, "name": "Dried egg whites", "synonyms": [ "egg white powder", "powdered egg whites", "dried egg white powder", "albumen powder", "dehydrated egg whites" ], "category": "milled", "default_state": "standard", "confidence": "low", "working_figure": { "grams": 88, "basis": "as a middle figure, or weigh 4 to 5 g of powder per egg white replaced" }, "states": [ { "id": "standard", "label": "Standard, powder spooned and leveled", "density_g_per_ml": null, "range_min": 0.3381, "range_max": 0.4523, "withheld": true, "withheld_reason": "The four figures, Judee's label 80 g, King Arthur 88 g, Deb El Just Whites label 96 g and USDA 107 g (sifted) per cup, span 34%, beyond the 10% tolerance for powders. Most of the spread is whole-gram rounding on small spoon measures, and USDA's figure is for a sifted cup of a stabilized powder, so the range is published rather than one figure.", "sources": [ { "name": "USDA SR Legacy \"Egg, white, dried, stabilized, glucose reduced\" (FDC 170895)", "ref": "USDA Standard Release (NDB 01258) publishes 1 cup, sifted = 107 g (density 0.452 g/mL). Water 5.5 g, protein 84.1 g per 100 g. Read through ReciPal (USDA database NDB 1258) and getfoodfacts (FDC ID and composition).", "fdc_id": 170895, "density_g_per_ml": 0.4523 }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "KA lists \"Egg whites (dried)\" at 2 tablespoons = 3/8 oz = 11 g, 88 g per cup (density 0.372 g/mL).", "density_g_per_ml": 0.372 }, { "name": "Deb El Just Whites (producer label)", "ref": "Label serving 2 tsp (4 g), 10 kcal, 3 g protein (FatSecret, archived listing), 96 g per cup (density 0.406 g/mL); whole-gram rounding puts 2 tsp anywhere from 3.5 to 4.5 g, 84 to 108 g per cup. Package directions, as quoted by Texas Cooking: \"For each egg white you need, use 2 level teaspoons plus 2 tablespoons of warm water.\"", "density_g_per_ml": 0.4058 }, { "name": "Judee's Dried Egg Whites (producer label)", "ref": "Label serving 1 tbsp (5 g), 20 kcal, 4 g protein (FatSecret), 80 g per cup (density 0.338 g/mL); whole-gram rounding covers 72 to 88 g per cup. Judee's states that its 8 oz bag equals 45 egg whites, about 5 g of powder per white.", "density_g_per_ml": 0.3381 } ], "verified": "2026-10-29", "last_reviewed": "2026-10-29" } ], "yields": [], "notes": "A cup of dried egg whites weighs 80 to 107 g (2.8 to 3.8 oz). Judee's label gives 5 g per tablespoon (80 g per cup), King Arthur 11 g per 2 tablespoons (88 g), Deb El's Just Whites 4 g per 2 teaspoons (96 g) and USDA 107 g for a sifted cup. The powder is light and fluffy, so spoon measures are unreliable; weigh it, using 4 to 5 g of powder for each egg white.\n\nDried egg white, sold as egg white powder, powdered egg whites or albumen powder, is pasteurized liquid egg white with its trace of natural glucose removed, so it does not brown in storage, then spray-dried to a fine powder. USDA's Standard Reference record (FDC 170895, egg white, dried, stabilized, glucose reduced) lists 5.5% water and 84% protein. Bakers use it for meringues, macarons and royal icing without raw-egg concerns, and to add whites without separating eggs. It is not meringue powder, which blends egg white with sugar, starch and stabilizers.\n\nThe figures span 34%, beyond the 10% this site allows for powders, so the entry publishes the range. Most of the spread is rounding. Labels state whole grams on small spoons: 4 g for 2 teaspoons could be anything from 3.5 to 4.5 g, 84 to 108 g per cup, and 5 g per tablespoon covers 72 to 88 g. USDA's 107 g is for a sifted cup, which for most powders is the lightest way to fill one; that it is the heaviest figure here suggests a denser, more granular powder than today's retail brands. King Arthur's 88 g sits inside the range and is accepted.\n\nThe physical check comes from the egg itself. A large fresh egg white weighs 30 to 35 g (King Arthur's chart) and is about 88% water, so it holds about 4 g of dry solids. Judee's says its 8 oz bag equals 45 egg whites, 5 g each. Just Whites' package directions use 2 level teaspoons of powder with 2 tablespoons of warm water per white, about 4 g at its labelled weight. Both match the 4 g of solids in a real white, and 2 tablespoons of water, about 30 g, replaces the water. Dry egg protein has a density of about 1.3 g/mL, so a cup at 80 to 107 g is only a quarter to a third solid and the rest air, typical of a fine, cohesive spray-dried powder, which is why a spoonful varies so much.\n\nPractical guidance: weigh the powder by the number of whites it replaces, 4 to 5 g each, and reconstitute it with about 2 tablespoons of water per white. By volume, a level tablespoon holds 5 to 7 g; use 88 g per cup as a middle figure. Whisking the powder into the recipe's sugar before adding water helps it dissolve without lumps. For macarons and meringues, where a few grams of protein change the result, a scale is the only reliable measure." }, { "id": "dried-figs", "schema_version": 3, "name": "Dried figs", "synonyms": [ "dried mission figs", "dried calimyrna figs", "chopped dried figs", "whole dried figs", "dried ficus carica" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, chopped pieces or whole loose in the cup", "density_g_per_ml": 0.6298, "sources": [ { "name": "USDA FoodData Central", "ref": "Figs, dried, uncooked (SR Legacy). Published: 1 cup = 149 g. Density 0.6298 g/mL.", "density_g_per_ml": 0.6298 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Figs (dried, chopped)', 1 cup = 149 g. Density 0.6298 g/mL.", "density_g_per_ml": 0.6298 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Two sources agree exactly, an unusually clean case on this site. USDA FoodData Central publishes Figs, dried, uncooked (SR Legacy) at 1 cup = 149 g, implying a density of 0.6298 g/mL. King Arthur's Ingredient Weight Chart lists 'Figs (dried, chopped)' at 1 cup = 149 g, implying the same 0.6298 g/mL. Both sources land on the identical figure without specifying a filling method, so this entry publishes 149 g per cup with medium confidence.\n\nUSDA does not specify chopped versus whole in its cup portion for dried figs, while King Arthur specifies chopped. That the two figures nonetheless coincide follows the same pattern documented on this site for dried apricots, where USDA halves and King Arthur diced converge on essentially the same density: sticky dried fruit is dominated by clumping rather than by piece geometry, so whether the pieces are whole, halved, or chopped does not meaningfully change the cup mass. Dried fig pieces do not slide freely into settled arrangements. They adhere to each other and to the cup surface, forming irregular masses with similar overall air content regardless of size.\n\nAt 0.6298 g/mL, dried figs pack noticeably denser than dried apricots at 0.55 g/mL, even though the two fruits have similar macronutrient composition (both roughly 249 kcal per 100 g, 63 g carbohydrate, 30 g water). The likely explanation is the seed content: dried figs contain many small hard seeds embedded in the flesh, often several dozen per fig, that contribute mass without proportionally contributing volume. Apricot pits are removed before drying, so apricot pieces are essentially pure fruit flesh. This is why figs land in a different density band than apricots despite similar bulk composition, and why fig cup weights are more stable across sources: the seed mass anchors the figure and reduces the state-dependent variability that appears elsewhere.\n\nProduct variants: Black Mission and Calimyrna are the two dominant commercial dried fig varieties in the United States. Mission figs are smaller, darker and slightly denser per fig; Calimyrna are lighter-colored, larger and more delicate. Both trade under USDA data at essentially the same cup weight. Turkish Smyrna figs and Greek Kalamata figs are traded in Europe with similar cup masses. Sweetened or infused dried figs, sometimes marketed as 'soft' or 'plumped' figs, contain added glycerin or fruit juice that increases moisture and density and would earn separate entries if a second authoritative source becomes available. Fig paste, jam or spread is a fundamentally different product with continuous fruit flesh and no air gaps; its density approaches 1.3 to 1.4 g/mL similar to other preserves, and does not belong in this dried-fig entry.\n\nDried figs are placed in the milled category alongside other dried-fruit pieces and chopped dates on this site. The category rule tracks physical packing behavior: irregular semi-rigid pieces pack by scoop with air gaps in the same way as whole grains and nuts. The 10 percent category tolerance applies here, and the exact agreement between sources sits comfortably inside it.\n\nNo standards body publishes a bulk density for dried figs. Codex Alimentarius has a standard for dried figs covering moisture content, defect tolerances and sulfur dioxide limits but not physical density. Two independent authoritative sources agree exactly, so this entry is held at medium confidence. A third independent source, such as a professional culinary reference or a producer's laboratory measurement, matching within tolerance would move it to high confidence.", "last_reviewed": "2026-09-21" }, { "id": "dried-pineapple", "schema_version": 3, "name": "Dried pineapple", "synonyms": [ "sweetened dried pineapple", "dried pineapple pieces", "dried pineapple chunks", "candied pineapple", "dried ananas comosus" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, dried pieces or chunks loose in the cup", "density_g_per_ml": null, "range_min": 0.6003, "range_max": 0.6763, "withheld": true, "withheld_reason": "Two sources disagree by 12.68%, over the 10% milled tolerance. USDA FNDDS (code 62120100) publishes 160 g per cup while King Arthur publishes 142 g per cup. USDA does not publish a dedicated dried pineapple record in SR Legacy or Foundation Foods, so the FNDDS figure is a standardized dietary-survey measure rather than a direct laboratory portion. The gap may reflect a real difference between sweetened and unsweetened forms (most commercial dried pineapple is sweetened, which packs denser due to added sugar) or fill-method variability. This entry publishes the range rather than picking one figure.", "sources": [ { "name": "USDA FoodData Central", "ref": "Pineapple, dried (FNDDS 62120100). Published: 1 cup = 160 g, 1 slice/chunk = 8 g. Density 0.6763 g/mL. USDA SR Legacy has no dedicated dried pineapple record; the 160 g figure is USDA's FNDDS standardized measure used for national dietary intake studies. High per-100g carbohydrate content (~84 g) in the FNDDS record suggests the entry covers sweetened commercial dried pineapple.", "density_g_per_ml": 0.6763 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Pineapple (dried)', 1/2 cup = 71 g (142 g/cup). Density 0.6003 g/mL. State unspecified.", "density_g_per_ml": 0.6003 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Two sources 12.68 percent apart, outside the 10 percent milled tolerance, so this entry publishes the range rather than a single figure. USDA FoodData Central lists Pineapple, dried under FNDDS code 62120100 at 1 cup = 160 g, implying a density of 0.6763 g/mL. King Arthur's Ingredient Weight Chart lists 'Pineapple (dried)' at 1/2 cup = 71 g, extrapolating to 142 g per cup and 0.6003 g/mL. The USDA figure comes with an important sourcing caveat: USDA's SR Legacy and Foundation Foods databases do not include a dedicated dried pineapple record. The 160 g figure is drawn from USDA FNDDS, a standardized dietary-survey measure used for national intake studies rather than a direct laboratory portion. FNDDS is authoritative USDA data but its portions are standardized estimates.\n\nThe gap between the two sources may reflect a real difference in product state rather than measurement noise. The FNDDS record shows approximately 84 g of carbohydrate per 100 g, which is unusually high for pure fruit and suggests the record covers sweetened commercial dried pineapple (the dominant form in the US market, with added cane sugar or fruit juice concentrate). King Arthur's entry does not specify sweetened versus unsweetened. If FNDDS measures sweetened and King Arthur measures unsweetened or generic, the added-sugar mass in the sweetened form would account for a density difference of roughly this magnitude. Alternatively, both sources may measure the same sweetened product and the gap reflects fill-technique variation similar to what appears for other dense sticky dried fruits on this site. Without documented filling methods and without a clean state-matched pair of sources, the two figures cannot be reconciled cleanly and this entry publishes the range.\n\nDried pineapple at 142 to 160 g per cup (density 0.60 to 0.68) packs at the upper end of the dried-fruit cluster on this site. Dried figs publish at 149 g per cup (0.63), dried apricot halves at 130 (0.55), dried apple dice at 86 (0.36), and currants at 144 (0.61). Pineapple's high density despite similar fresh water content to apples (both around 85 percent water fresh) reflects the structural difference in fruit flesh. Apple cells contain more intercellular air and collapse into puffy, aerated pieces during drying. Pineapple's fibrous flesh with tightly-packed juice sacs collapses more completely on drying, producing denser pieces with less internal air. This is the same physical mechanism that separates dried figs (dense, seed-rich) from dried apricots (less dense, pure flesh) discussed elsewhere on this site.\n\nProduct variants: sweetened versus unsweetened dried pineapple differ substantially. Sweetened pineapple is treated with cane sugar or juice concentrate before drying and can carry 30 to 50 percent added sugar by weight, which increases both mass and density. Unsweetened natural dried pineapple retains the fruit's own sugars only and packs lighter. Freeze-dried pineapple, which preserves nearly all of the piece's internal air structure, packs at approximately 0.15 to 0.20 g/mL (comparable to freeze-dried apples) and is a distinct product not covered by this entry. Sulfured versus unsulfured pineapple differs in browning-preservation method but has essentially no density impact.\n\nDried pineapple is placed in the milled category alongside other dried-fruit pieces on this site (dried apricots, dried figs, dried apples, chopped dates). The category rule tracks physical packing behavior: irregular semi-rigid pieces pack by scoop with air gaps in the same way as whole grains and nuts. The 10 percent category tolerance applies here, and the 12.68 percent observed gap is a genuine physical disagreement rooted in state ambiguity rather than a measurement error in either source.\n\nNo standards body publishes a bulk density for dried pineapple. Codex Alimentarius has commodity standards for canned and juice pineapple but not for dried products. Two authoritative sources with an over-tolerance gap, USDA sourcing weaker than direct SR Legacy measurement, and unresolved state ambiguity, so this entry is held at low confidence and range-published until USDA SR Legacy or Foundation Foods publishes a direct dried-pineapple portion, or until a matching state-specified pair of sources can arbitrate the gap.", "last_reviewed": "2026-09-21" }, { "id": "dry-milk-powder", "schema_version": 3, "name": "Dry Milk Powder", "synonyms": [ "powdered milk", "dry milk", "milk powder", "dried milk", "nonfat dry milk", "instant nonfat dry milk", "NFDM", "whole milk powder", "skim milk powder", "milk solids", "dried nonfat milk", "dried whole milk" ], "category": "milled", "default_state": "instant-nonfat", "confidence": "low", "states": [ { "id": "instant-nonfat", "label": "Instant nonfat dry milk (grocery)", "density_g_per_ml": null, "range_min": 0.2874, "range_max": 0.3889, "withheld": true, "withheld_reason": "Instant/agglomerated processing varies by brand. Grocery brands converge tightly near 68 g/cup; bulk and baking-line instants pack denser at 88-92 g/cup.", "sources": [ { "name": "USDA Branded (Instant Nonfat Dry Milk, UPC 085239051375)", "ref": "73 g/metric cup = 69 g/US cup per USDA FoodData Central, via aqua-calc", "density_g_per_ml": 0.2874 }, { "name": "USDA Branded (Signature Select Instant Nonfat Dry Milk, UPC 021130385164)", "ref": "74 g/metric cup = 71 g/US cup per USDA FoodData Central, via aqua-calc", "density_g_per_ml": 0.3001 }, { "name": "Multi-brand grocery convergence (Signature Select, Publix, Meijer, Great Value, Village Farm)", "ref": "Five separate brand nutrition labels all list 1/3 cup dry = 23g, so 69 g/cup. Reflects FDA reference amount for instant NFDM that reconstitutes 1/3 cup dry to 1 cup fluid milk.", "density_g_per_ml": 0.2916 }, { "name": "Honeyville Instant Nonfat Dry Milk", "ref": "Nutrition label: 1/4 cup (22g) makes 1 cup, so 88 g/cup. Bulk emergency-food packaging.", "density_g_per_ml": 0.372 }, { "name": "USDA Branded (Carnation Instant Nonfat Dry Milk, UPC 050000276707)", "ref": "1/4 cup = 23g per USDA FoodData Central, so 92 g/cup. Baking-oriented product, denser than grocery-line agglomerated instants.", "density_g_per_ml": 0.3889 } ], "verified": "2026-09-22", "last_reviewed": "2026-09-22" }, { "id": "nonfat-non-instant", "label": "Non-instant (spray-dried) nonfat dry milk", "density_g_per_ml": null, "range_min": 0.4734, "range_max": 0.6255, "withheld": true, "withheld_reason": "Non-instant nonfat spans grind fineness from KA chart entry (112 g/cup) through USDA branded Bob's Red Mill (128 g/cup) to KA's extra-fine Baker's Special (148 g/cup per KA nutrition label).", "sources": [ { "name": "King Arthur Ingredient Weight Chart (Dried nonfat milk, powdered)", "ref": "1/4 cup = 1 oz = 28g, so 112 g/cup. Listed identically to Baker's Special in KA's chart, which is physically implausible given Baker's Special is marketed as extra-fine granules that pack denser than conventional powder.", "density_g_per_ml": 0.4734 }, { "name": "USDA Branded (Bob's Red Mill Non-Fat Dry Milk Powder, UPC 039978115201)", "ref": "135 g/metric cup = 128 g/US cup per USDA FoodData Central. Bob's Red Mill product page confirms reconstitution requires whisk or blender, indicating non-instant.", "density_g_per_ml": 0.5411 }, { "name": "King Arthur Baker's Special Dry Milk nutrition label", "ref": "1/4 cup = 37g per King Arthur package data, so 148 g/cup. Contradicts KA's own Ingredient Weight Chart figure of 112 g/cup by 32%. KA markets Baker's Special as extra-fine granules for professional bakers.", "density_g_per_ml": 0.6255 }, { "name": "Army Quartermaster JCCOE Recipe Manual Section A No. 10(1)", "ref": "Explicitly states instant nonfat dry milk may be substituted pound-for-pound but not measure-for-measure for non-instant nonfat, because the cup measures differ. Professional-source confirmation of the physical distinction.", "density_g_per_ml": null } ], "verified": "2026-09-22", "last_reviewed": "2026-09-22" }, { "id": "whole", "label": "Whole milk powder", "density_g_per_ml": null, "range_min": 0.4227, "range_max": 0.5072, "withheld": true, "withheld_reason": "Whole milk powder varies by processing: KA's non-instant at 100 g/cup, Nestle NIDO's instant at 120 g/cup.", "sources": [ { "name": "King Arthur Ingredient Weight Chart (Dried whole milk, powdered)", "ref": "1/2 cup = 1 3/4 oz = 50g, so 100 g/cup. KA product page explicitly identifies this as non-instant, requires warm water or dry-blending into other dry ingredients for reconstitution.", "density_g_per_ml": 0.4227 }, { "name": "USDA Branded (Nestle NIDO Fortificada Dry Whole Milk, UPC 00028000823177)", "ref": "1/4 cup = 30g per USDA FoodData Central, so 120 g/cup. Instant/agglomerated whole milk powder.", "density_g_per_ml": 0.5072 }, { "name": "Nestle NIDO Fortificada 4.85 lb canister packaging", "ref": "Package data: 73 servings of 1/4 cup in 4.85 lb (2199g), so 30.1g per 1/4 cup = 120 g/cup. Confirms USDA branded figure via independent producer-label calculation.", "density_g_per_ml": 0.5072 } ], "verified": "2026-09-22", "last_reviewed": "2026-09-22" } ], "yields": [], "notes": "TL;DR: Dry milk powder ranges from 68 g/cup (grocery-store instant nonfat) to 148 g/cup (King Arthur's extra-fine Baker's Special) — a 2x spread driven by drying method, not by fat content.\n\nDry milk powder is dehydrated milk sold as a shelf-stable ingredient for baking, cooking, and beverage reconstitution. Bakers add it to bread doughs for softer crumb and longer shelf life — particularly enriched breads, hamburger buns, and dinner rolls — and to ice creams for richness. Cup-weight confusion is severe because \"dry milk\" spans multiple physically distinct products at the same shelf label.\n\nThe dominant variable is drying method, not fat content. Modern grocery-store dry milk is almost always instant (agglomerated): the powder is briefly re-wetted and re-dried to form porous clumps that dissolve quickly in cold water. Those clumps trap air, so a cup of instant powder weighs far less than the same volume of the fine spray-dried powder professional bakers use. Fat content nudges density by a smaller amount than processing does.\n\nInstant nonfat dry milk — Carnation Instant, Great Value, Publix, Meijer, Signature Select — converges near 68 g/cup at the grocery-shelf end. Nutrition labels from five separate brands all list 23g per 1/3 cup, and USDA branded food data for their UPCs confirms 68-74 g/cup. Honeyville's bulk emergency-food instant nonfat runs denser at 88 g/cup, and Carnation's baking-line label pushes to 92 g/cup. Range: 68-92 g/cup, driven by how heavily the instant processing has agglomerated the specific product.\n\nNon-instant nonfat dry milk is the baking-supply form: fine spray-dried powder that requires whisking or blending to dissolve. USDA data for Bob's Red Mill Non-Fat Dry Milk Powder (UPC 039978115201) lists 128 g/cup; King Arthur's chart entry for Dried nonfat milk (powdered) gives 112 g/cup. King Arthur's Baker's Special (extra-fine granules marketed for professional bakers) tops the range at 148 g/cup per King Arthur's own nutrition label — though notably their Ingredient Weight Chart lists it at 112 g/cup, identical to their generic nonfat entry, a 32% self-contradiction that the label figure resolves in favor of the denser reading. The Army Quartermaster recipe manual makes the distinction explicit: instant nonfat dry milk may be substituted pound-for-pound for non-instant but not measure-for-measure, because the cup measures differ.\n\nWhole milk powder spans 100 g/cup (King Arthur's non-instant Dried Whole Milk, per their chart at 50g per 1/2 cup) to 120 g/cup (Nestle NIDO Fortificada, an instant whole milk product with USDA-branded data at 30g per 1/4 cup). Same fat content, different processing, different cup weight.\n\nPractical recommendation: identify your specific product before converting. Grocery-store instant nonfat sits near 68 g/cup. Baking-supply non-instant nonfat runs 112-148 g/cup depending on grind fineness. Instant whole milk (NIDO) sits at 120 g/cup. King Arthur's non-instant Dried Whole Milk drops to 100 g/cup. If the label doesn't tell you the drying method, check reconstitution instructions: instant products dissolve in cold water with stirring; non-instant products need warm water or whisking. Given the 2x possible spread, weighing on a scale is the only path to recipe precision." }, { "id": "durum-flour", "schema_version": 3, "name": "Durum flour", "synonyms": [ "extra fancy durum flour", "durum wheat flour", "fine durum flour", "finely ground durum flour" ], "category": "milled", "default_state": "standard", "confidence": "low", "working_figure": { "grams": 124, "basis": "if you spoon the flour into the cup and level it" }, "states": [ { "id": "standard", "label": "Standard, fine durum flour (not semolina)", "density_g_per_ml": null, "range_min": 0.5241, "range_max": 0.6002, "withheld": true, "withheld_reason": "King Arthur, which spoons flour into the cup and levels it, gives 124 g; America's Test Kitchen, which dips the cup and sweeps it level, gives 142 g. The 14% gap is beyond the 10% tolerance for flours and matches the gap between the two methods for every flour, so the range is published rather than one figure.", "sources": [ { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "KA lists \"Durum Flour\" at 1 cup = 4 3/8 oz = 124 g (density 0.524 g/mL). King Arthur measures flour by spooning it into the cup and leveling it (120 g for all-purpose flour).", "density_g_per_ml": 0.5241 }, { "name": "America's Test Kitchen, Orange-Chocolate Durum Bread", "ref": "\"2 cups (10 ounces) durum flour\", 5 oz, 142 g per cup (density 0.600 g/mL); the same recipe gives \"1 cup (5½ ounces) bread flour\". Notes: \"Use durum flour in this recipe, which is more finely ground than semolina flour\" and \"Avoid Caputo Semola Rimacinata.\" America's Test Kitchen measures flour by dipping the cup and sweeping it level (5 oz for all-purpose flour).", "density_g_per_ml": 0.6002 }, { "name": "King Arthur Baking Durum Flour (package label)", "ref": "Package (item 100243): serving size 1/4 cup (30 g), 45 servings per container; ingredients: durum wheat; described as \"high in protein, finely textured\". 30 g is the FDA reference amount for flour printed beside a quarter cup, so it is kept as a source without a figure (it would be 120 g per cup)." } ], "verified": "2026-10-29", "last_reviewed": "2026-10-29" } ], "yields": [], "notes": "A cup of durum flour weighs 124 to 142 g (4.4 to 5 oz), and the difference is how the cup is filled. King Arthur, which spoons flour into the cup and levels it, gives 124 g; America's Test Kitchen, which dips the cup into the bag and sweeps it level, gives 142 g. Spooned, use 124 g.\n\nDurum flour is milled from durum wheat (Triticum durum), the hard, high-protein, amber wheat used for dried pasta. Milled coarse, durum becomes semolina, the gritty meal of pasta dough and many Italian and North African breads. Milled further, past the semolina stage, it becomes durum flour, sold in the US as extra fancy durum or simply durum flour. King Arthur describes its durum flour as finely textured, and America's Test Kitchen notes that durum flour is more finely ground than semolina flour and warns against swapping in Caputo's semola rimacinata, a re-milled semolina, in its durum bread.\n\nKing Arthur's ingredient weight chart lists durum flour at 1 cup = 4 3/8 oz = 124 g. America's Test Kitchen's Orange-Chocolate Durum Bread calls for 2 cups (10 ounces), 5 oz or 142 g per cup. The 14% gap is beyond the 10% this site allows for flours, so the range is published, and King Arthur's figure is accepted at the bottom of it.\n\nThe two sources disagree in exactly the way they disagree about every flour. King Arthur weighs all-purpose flour at 120 g a cup by spooning; America's Test Kitchen weighs it at 5 oz, 142 g, by dipping and sweeping. Their durum figures, 124 g and 142 g, sit in the same places, and the same ATK recipe gives bread flour at 5 1/2 oz a cup. Durum flour therefore packs like an ordinary fine wheat flour, as its milling predicts. King Arthur's own durum flour bag prints 1/4 cup as 30 g, 120 g per cup, but 30 g is the FDA reference amount for flour printed beside a quarter cup, so it is kept as a source without a figure.\n\nThe physical check: wheat flour particles have a density of about 1.45 g/mL. Spooned all-purpose flour at 120 g fills about 35% of a cup with flour, and durum flour at 124 g fills 36%. Semolina at 167 g, USDA's figure on this site, fills nearly half, because its hard, coarse granules hold little air.\n\nThat gap is the practical trap. A recipe written for semolina that gets durum flour by the cup is about a quarter short by weight, and durum flour swapped for semolina cup for cup is a third over. Indian durum atta, a whole-meal durum flour, carries the same 30 g per quarter cup label convention and has not been measured separately.\n\nPractical guidance: use 124 g per cup if you spoon and level, 142 g if you scoop, and weigh whenever a recipe gives grams. When a recipe allows either durum flour or semolina, convert between them by weight, not by volume." }, { "id": "einkorn-flour", "schema_version": 3, "name": "Einkorn Flour", "synonyms": [ "einkorn all-purpose flour", "einkorn AP flour", "AP einkorn flour", "Jovial einkorn flour", "farro piccolo flour" ], "category": "milled", "default_state": "standard", "confidence": "high", "states": [ { "id": "standard", "label": "All-purpose einkorn, spooned and leveled", "density_g_per_ml": 0.5072, "sources": [ { "name": "Jovial Foods (Einkorn Baking Tips)", "ref": "Published brand guidance: 120 g/cup for all-purpose einkorn flour, contrasted with 96 g/cup for whole-grain einkorn on the same reference page.", "density_g_per_ml": 0.5072 }, { "name": "Jovial Foods product label", "ref": "Nutrition Facts panel on 32 oz retail bag lists 30 g per 1/4 cup serving, extrapolating to 120 g/cup.", "density_g_per_ml": 0.5072 }, { "name": "USDA Branded Foods (via aqua-calc)", "ref": "Entry for Jovial 100% Organic Einkorn All-Purpose Flour (UPC 815421011005): 127 g per metric cup, converting to ~120 g per US cup.", "density_g_per_ml": 0.508 }, { "name": "Cultured Food Life", "ref": "Secondary cookbook reference citing 120 g/cup as the standard for all-purpose einkorn flour.", "density_g_per_ml": 0.5072 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "TL;DR: All-purpose einkorn flour weighs 120 grams per cup (0.5072 g/mL) based on Jovial's official label data, USDA Branded Foods records, and cross-referenced retailer listings. Jovial dominates US retail, and their spec sits at exactly the same figure King Arthur uses for modern all-purpose flour — a coincidence of particle physics rather than a general rule.\n\nEinkorn (Triticum monococcum, \"single grain\" in German) is the oldest cultivated wheat, domesticated in southeastern Anatolia around 10,000 BC and never hybridized in the modern era. Its retail presence in the US is dominated by Jovial Foods, an Italian-sourced brand that essentially built the market single-handed; a secondary tier of small stone-mill producers fills specialty niches. King Arthur Baking, notably absent from the source list here, does not stock einkorn flour and does not list it on their ingredient weight chart. That absence is informative — the correction thesis this site is built around does not apply, because there is no King Arthur figure to correct against.\n\nThe USDA Foundation Foods program only added einkorn (as a berry, not flour) in October 2024, and there is still no USDA composition profile for einkorn flour itself. What USDA's database does contain is branded label data submitted by Jovial, which reports 127 g per metric cup — converting to 120 g per US cup within rounding. Jovial's published baking guidance also states 120 g/cup, and their 32 oz retail bag Nutrition Facts panel lists 30 g per quarter-cup, which extrapolates to the same figure. When a producer's own guidance, their label data, and independent cookbook references all point to one number, single-figure publishing is warranted.\n\nSmaller stone-mill producers report lower figures — Janie's Mill lists 103 g/cup, for instance — because their einkorn products are less sifted than Jovial's high-extraction all-purpose flour. Those are functionally closer to whole-grain einkorn (96 g/cup) than to Jovial-style AP, and bakers using a small-mill product should check the specific bag rather than assume the 120 g/cup figure applies.\n\nThe physical reasoning behind Jovial's 120 g/cup is worth pausing on. Modern all-purpose wheat flour and sifted einkorn flour arrive at similar cup weights despite their compositional differences because both are dominated by starch-and-protein endosperm particles in a comparable size range after milling. Einkorn's endosperm is somewhat softer and its protein slightly higher, but the packing density in a scoop-and-level measurement is set by particle geometry and moisture content, not by which wheat species the grain came from.\n\nWhole-grain (whole-wheat) einkorn flour is a distinct product and behaves differently — around 96 g/cup based on the same Jovial sources. Bakers substituting einkorn into recipes designed for modern wheat should reduce liquid by 15 to 20 percent regardless of which form they use, because einkorn absorbs water more slowly and has weaker, gliadin-dominant gluten that snaps back rather than stretching. Weighing rather than scooping matters more here than for standard AP flour, since einkorn's irregular particle size makes volume measurement more variable in real kitchens even when the reference figure is settled." }, { "id": "espresso-powder", "schema_version": 3, "name": "Espresso Powder", "synonyms": [ "instant espresso", "instant espresso powder", "espresso baking powder", "baking espresso powder" ], "category": "milled", "default_state": "standard", "confidence": "high", "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": 0.4734, "sources": [ { "name": "King Arthur Baking Company – Ingredient Weight Chart", "ref": "1 tablespoon = 1/4 oz = 7 g, giving 112 g/cup. KA's chart entry is the standard baking reference for espresso powder and reflects their own KA-brand instant espresso product (3 oz jar).", "density_g_per_ml": 0.4734 }, { "name": "Medaglia D'Oro Instant Espresso Coffee – container derivation", "ref": "2 oz jar (56.7 g total) contains approximately 24 one-teaspoon servings, giving 2.36 g per teaspoon = 7.1 g per tablespoon = 113 g/cup. Medaglia D'Oro is the dominant Italian instant espresso brand used in baking since 1924, and its density matches King Arthur's brand product to within 1% — indicating tight production consistency across the professional instant-espresso category.", "density_g_per_ml": 0.4776 } ], "verified": "2026-09-22", "last_reviewed": "2026-09-22" } ], "yields": [], "notes": "Espresso powder weighs 112 g/cup with tight convergence across the two major professional baking brands (King Arthur at 112 g/cup, Medaglia D'Oro at 113 g/cup). This is one of the cleaner single-figure entries in this catalog — instant espresso is a manufactured concentrate with tight production tolerances, unlike variable ingredients like shredded vegetables or fermented starters.\n\nEspresso powder is made by taking dark-roasted espresso coffee beans, brewing them, drying the brewed liquid into a solid concentrate, and then grinding that concentrate to a very fine powder. It is fully water-soluble and dissolves instantly in liquid, which is the key property that makes it useful in baking. A pinch of espresso powder deepens the chocolate flavor in brownies, cakes, and cookies without transitioning the finished bake to a mocha flavor — the standard amount is 1/2 to 2 teaspoons per recipe.\n\nKing Arthur has this on their weight chart at 7 g/tablespoon = 112 g/cup, and no correction is needed. Medaglia D'Oro, the dominant Italian instant espresso brand in the American baking market since 1924, derives to almost exactly the same figure (2.36 g/teaspoon from the 2 oz jar makes 24 one-teaspoon servings). The professional instant-espresso category is remarkably consistent because manufacturing tolerances at industrial-scale coffee processing are tight.\n\n**Distinction from instant coffee.** Espresso powder and instant coffee are not the same product, and the substitution ratio is not 1:1. Espresso powder is made from darker-roasted beans, brewed more concentrated before drying, and ground finer — the finished powder is roughly 50% more concentrated by weight than standard instant coffee. To substitute instant coffee for espresso powder in a baking recipe, use 1.5 teaspoons of instant coffee per 1 teaspoon of espresso powder called for. Density-wise, instant coffee is also slightly less dense per volume (roughly 95-100 g/cup vs. espresso powder's 112 g/cup) because the particles are coarser and pack less tightly.\n\n**Distinction from coffee grounds (fresh-ground beans).** Espresso powder is soluble; freshly-ground coffee beans are not. Substituting coffee grounds for espresso powder in a recipe leaves gritty coffee particles in the finished bake because the grounds cannot dissolve. If a recipe calls for espresso powder and only fresh-ground beans are available, the correct substitution is to brew a small amount of very strong espresso from the beans and use that liquid, reducing other liquid in the recipe to compensate.\n\n**Distinction from whole espresso beans.** Whole beans pack at roughly 200 g/cup, nearly twice the density of espresso powder, and are not usable as a substitute without brewing.\n\n**Density in context.** Espresso powder at 112 g/cup is denser than unsweetened cocoa powder (KA lists cocoa at 84 g/cup) despite similar particle appearance. The difference reflects the brewed-then-dried granule structure of espresso powder versus the fluffy unprocessed cellular structure of cocoa. This is why substituting cocoa powder for espresso powder by volume gives a different weight than by weight substitution.\n\n**Buttercream and frosting tip.** Espresso powder dissolves best in warm liquid before being added to fat-based frostings and buttercreams. King Arthur recommends dissolving 1 tablespoon of espresso powder in 1 tablespoon of heavy cream or hot water before whisking into buttercream, which prevents visible dark specks in the finished frosting.\n\n**Practical baker guidance:** for the typical baking amount of 1/2 to 2 teaspoons per recipe, the density figure rarely matters — measuring by teaspoon is fine at this scale, and the recipe outcome is not sensitive to sub-gram precision. Weight measurement matters when scaling professional recipes (large-batch commercial baking) or when the recipe developer specifies grams. For volume-only recipes, 7 g per tablespoon is the reliable conversion." }, { "id": "farro", "schema_version": 3, "name": "Farro", "synonyms": [ "farro", "farro perlato", "pearled farro", "farro integrale", "whole grain farro", "farro semiperlato", "semi-pearled farro", "emmer wheat", "emmer farro" ], "category": "milled", "default_state": "standard", "confidence": "low", "working_figure": { "grams": 180, "basis": "for pearled farro, the most common kind in US stores" }, "states": [ { "id": "standard", "label": "Standard dry, spooned and leveled", "density_g_per_ml": null, "range_min": 0.7609, "range_max": 0.8792, "withheld": true, "withheld_reason": "Farro is sold in three distinct pearling levels with meaningfully different cup weights: pearled (hull removed) at 180 g/cup, semi-pearled at approximately 190-195 g/cup, and whole grain (hull intact) at 208 g/cup. The 15% gap between the extremes exceeds the 10% milled tolerance. King Arthur does not publish a farro reference, so the range is anchored by multi-producer cross-validation: Bob's Red Mill, In Harvest, and Kroger all label pearled farro at 45 g per 1/4 cup (180 g/cup), and Bob's separately labels whole grain farro at 52 g per 1/4 cup (208 g/cup). All these are non-RACC values that reflect actual product measurement rather than labeling defaults. This entry publishes the range 180-208 g/cup to honestly represent the pearling spectrum.", "sources": [ { "name": "Bob's Red Mill Organic Pearled Farro (with multi-producer cross-validation)", "ref": "Bob's Red Mill Organic Farro (pearled, UPC 039978118608) retail nutrition label: 1/4 cup = 45 g, back-calculating to 180 g/cup and density 0.7609 g/mL. Cross-validated by two independent producers publishing the identical 45 g per 1/4 cup: In Harvest Organic Farro and Kroger Farro (both pearled). The 45 g figure is unusual because it matches no standard FDA Reference Amount Customarily Consumed default for cereal grains, and its appearance across three independent brands confirms it represents actual product measurement rather than a labeling convention. Pearled farro (farro perlato in Italian) has had the outer hull and most of the bran removed via abrasion, leaving primarily endosperm and germ for faster cooking (25-30 minutes).", "density_g_per_ml": 0.7609 }, { "name": "Bob's Red Mill Organic Whole Grain Farro", "ref": "Bob's Red Mill Organic Farro (whole grain, UPC 039978008602) retail nutrition label: 1/4 cup = 52 g, back-calculating to 208 g/cup and density 0.8792 g/mL. This is a distinct product from Bob's pearled farro, retaining the full outer hull and bran layer (farro integrale in Italian). The 52 g value is also non-RACC, confirming measurement rather than labeling default. Whole grain farro requires 45-60 minutes cooking time and delivers maximum fiber and nutrient retention. USDA FoodData Central Branded Foods entry 45015716 (WHOLE GRAIN EMMER FARRO) exists as a nutritional reference but does not publish a cup portion consistently.", "density_g_per_ml": 0.8792 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Farro publishes as a range 180 to 208 grams per cup because commercial farro products vary meaningfully in cup weight based on pearling level, and no King Arthur reference figure exists to anchor a single value. The range represents the honest span between pearled farro (hull removed, faster cooking, most common in US retail) at the lighter end and whole-grain farro (hull retained, longest cooking, most nutrient-dense) at the denser end.\n\nBob's Red Mill sells two distinct farro products with cleanly separated cup weights: Organic Pearled Farro at 45 grams per 1/4 cup (180 g/cup, density 0.7609 g/mL) and Organic Whole Grain Farro at 52 grams per 1/4 cup (208 g/cup, density 0.8792 g/mL). The 15% gap between these two products from the same producer is not a labeling artifact — both use non-RACC gram values reflecting actual product measurement. In Harvest Organic Farro and Kroger Farro (both pearled) label 45 g per 1/4 cup identically, matching Bob's pearled figure precisely. This multi-producer cross-validation at 180 g/cup gives strong confidence in the pearled end of the range. USDA FoodData Central includes Branded Foods entry 45015716 (WHOLE GRAIN EMMER FARRO) as a nutritional reference but does not consistently publish cup portions across its farro entries.\n\nUnderstanding farro requires knowing that the term is not species-specific in the US market. In Italy, farro properly refers to any of three ancient wheat species: farro piccolo (einkorn, Triticum monococcum), farro medio (emmer, Triticum dicoccum), and farro grande (spelt, Triticum spelta). Emmer wheat is the most common commercial farro in both Italy and the US export market. All three species are ancient relatives of modern bread wheat, cultivated for 7,000 to 12,000 years, and all retain more of the original grain nutrition than modern refined wheat. Farro is not gluten-free but is lower in gluten than modern bread wheat and is often better tolerated by people with mild wheat sensitivity, though not by those with celiac disease.\n\nPhysical mechanism for the density spread: whole-grain farro (farro integrale) retains the outer hull and bran layer intact, adding mass to each grain while barely increasing volume — this is why 1 cup of whole-grain farro weighs more (208 g) than 1 cup of pearled farro (180 g). Pearled farro (farro perlato) has the hull and outer bran removed via abrasion, leaving only the endosperm and germ. The pearled grains occupy roughly the same cup volume as whole-grain (kernels of similar size) but weigh less because material has been physically removed. Semi-pearled farro (farro semiperlato) sits between the two, typically 190-195 g/cup, retaining part of the bran for nutritional value while still cooking in reasonable time.\n\nCompared to other whole grains and grain-like ingredients on the site, farro at 180-208 g/cup packs similar to other intact cereal grains: amaranth grain at 193 g/cup, quinoa in a comparable range, and wheat berries close to 200 g/cup. The intact-grain category consistently packs denser than the milled-flour category because unbroken kernels have less air trapped between and within particles. All-purpose flour at 120 g/cup weighs much less per cup than any whole grain despite being the same underlying wheat, because milling incorporates air voids that intact grains lack.\n\nCategory assignment is milled, matching other whole grains on the site under the fibrous-plant-particulate definition.\n\nConfidence is low reflecting the 15% gap between pearled and whole-grain farro and the absence of a King Arthur reference. For cooking accuracy, weigh farro rather than measuring by volume. If a recipe was developed against pearled farro (most common in US retail), use 180 g/cup. If developed against whole-grain farro, use 208 g/cup. If in doubt about the pearling level, use 190 g/cup as a middle estimate matching semi-pearled products. This entry represents a moat play for the site: no other cup-to-gram reference explicitly distinguishes pearled from whole-grain farro with the physical mechanism explanation, and no other reference makes the multi-producer cross-validation (Bob's Red Mill, In Harvest, Kroger) transparent for an ancient grain that King Arthur has not indexed." }, { "id": "fennel-seeds", "schema_version": 3, "name": "Fennel Seeds", "synonyms": [ "fennel seeds", "whole fennel seeds", "saunf", "sonf", "moti saunf", "fennel seed" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, dry whole seeds, spooned and leveled", "density_g_per_ml": null, "range_min": 0.392, "range_max": 0.4422, "withheld": true, "withheld_reason": "12.8% spread between USDA SR Legacy whole-seed anchor (93 g/cup) and Chef's Resources direct measurement (105 g/cup) exceeds the milled 10% tolerance. Elongated crescent-shaped seeds pack differently by settling method (loose vs tapped) and seed origin. Same pattern documented for cumin-seeds (96-109 g/cup, 13.5% spread) — the whole-seed settling problem is real for elongated non-spherical spices. Range published to reflect that reality rather than picking a spurious midpoint.", "sources": [ { "name": "USDA SR Legacy \"Spices, fennel seed (whole)\"", "ref": "FDC 171323. 98 g/metric cup → 93 g/US cup. Primary physical-measurement anchor from USDA laboratory determination on whole fennel seed.", "fdc_id": 171323, "density_g_per_ml": 0.392 }, { "name": "USDA Branded (Fennel Seeds)", "ref": "UPC 026662550981. 101 g/metric cup → 96 g/US cup. Independent USDA GBFD measurement within 3% of USDA SR anchor.", "density_g_per_ml": 0.404 }, { "name": "Chef's Resources spice conversion table", "ref": "\"Fennel Seed\": 3.69 oz per cup → 105 g/cup. Direct measurement from CR's oz-per-cup table; toward the high end of the cluster, consistent with tapped or heaping-fill convention.", "density_g_per_ml": 0.4422 }, { "name": "USDA Branded (Fennel Seed, Morton & Bassett)", "ref": "UPC 016291441231. 142 g/metric cup → 134 g/US cup. 44% above the USDA anchor and outside physically plausible fennel-seed density.", "density_g_per_ml": 0.5664, "rejected": true, "rejection_reason": "134 g/cup is 44% above the USDA SR whole-seed anchor of 93 g/cup and beyond any physically plausible bulk density for elongated crescent-shaped fennel seeds, which pack with high void fraction due to shape. Likely a tapped-fill measurement convention or FDA serving-size rounding artifact rather than genuine loose-fill density. Excluded from the range." }, { "name": "USDA Branded (Fennel Seeds, unspecified brand)", "ref": "UPC 718343230557. 203 g/metric cup → 192 g/US cup. Physically impossible for whole fennel seed — would exceed particle density.", "density_g_per_ml": 0.8115, "rejected": true, "rejection_reason": "192 g/cup is more than twice the USDA SR whole-seed anchor and physically impossible: whole fennel seeds are elongated hollow crescents with true particle density around 0.9-1.1 g/mL and bulk density around 0.4 g/mL. A cup weighing 192 g would require particles more dense than pure fennel biomass in a 100%-void-free pack, which cannot happen. Almost certainly a labeling data-entry error (possibly a per-fluid-ounce vs per-cup confusion, or a ground-fennel figure mislabeled as whole)." }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "Silent on fennel seed in any form. KA's chart focuses on baking staples; fennel seed is a savory Italian, Indian, and Mediterranean cooking spice, so absent from the chart. No KA correction opportunity here.", "density_g_per_ml": null } ], "verified": "2026-09-23", "last_reviewed": "2026-09-23" } ], "yields": [], "notes": "TL;DR: Whole fennel seeds land in the 93-105 grams per cup range across USDA and producer measurements, driven by the settling-method sensitivity of elongated crescent-shaped seeds. The USDA SR Legacy anchor sits at 93 g/cup, USDA branded records at 96 g/cup, and Chef's Resources at 105 g/cup — a 13% spread that matches the pattern seen for cumin seeds and other elongated spices where whole-seed density depends on how the cup was filled.\n\nFennel seeds come from Foeniculum vulgare, a Mediterranean-native herb in the parsley family cultivated worldwide for its sweet licorice-flavored seed. The seeds are actually dry schizocarp fruits: elongated green-yellow crescents 5-10 mm long with prominent longitudinal ridges. Turkish and Egyptian fennel produces slightly plumper seeds with higher anethole content (the compound responsible for the licorice flavor); Indian fennel (saunf) has smaller seeds with a milder profile and is often eaten as a post-meal digestive. The seeds are essential in Italian sausage, Indian tempering (tarka), Chinese five-spice, French bouillabaisse, and countless Mediterranean fish and pork preparations.\n\nThe density spread reflects genuine physical variance. USDA SR Legacy's laboratory measurement of whole fennel seed (FDC 171323) gives 98 g/metric cup, which converts to 93 g/US cup — a firm anchor for the low end. USDA Global Branded Food Products Database entry UPC 026662550981 measures a branded product at 96 g/US cup, essentially confirming the USDA SR figure within measurement noise. Chef's Resources' oz-per-cup table lists fennel seed at 3.69 oz/cup (105 g/cup), roughly 13% above the USDA anchor. This spread is consistent with the well-documented settling-method sensitivity of elongated seeds: loose-fill measurements land near 93-96 g/cup, while tapped or heaping-fill measurements approach 105 g/cup.\n\nPhysical reasoning explains both the density range and its variance. Fennel seeds contain roughly 15% protein, 15% fat (dominated by the volatile anethole-rich essential oil), 40-52% carbohydrate (mostly fiber), and 6-9% moisture. True particle density is around 0.9-1.1 g/mL. Bulk cup density lands at 40% of particle density (93-105 g/cup = 0.39-0.44 g/mL) because the elongated crescent shape prevents efficient inter-particle packing. Fennel seeds settle with more void space than round seeds like mustard (159-200 g/cup, ~1.7x denser per cup despite similar per-seed mass) because crescents bridge each other and leave gaps that spherical seeds would fill. Tapping or shaking the cup partially collapses this void structure, adding 10-15% to the measured density — hence the CR high-end figure.\n\nTwo USDA GBFD records are rejected as outliers. Morton & Bassett fennel seed (UPC 016291441231) at 134 g/cup sits 44% above the USDA anchor and outside plausible bulk density for elongated seeds — likely a tapped-fill or FDA serving-size rounding artifact. A separate branded record (UPC 718343230557) at 192 g/cup is physically impossible: no whole fennel seed packs at twice particle density, and this figure would require negative void fraction. Almost certainly a data-entry error, possibly confusing fluid-ounce vs mass-ounce or mislabeling a ground-fennel figure as whole seed. Neither is treated as legitimate alternative data.\n\nKing Arthur Baking is silent on fennel seeds. The chart focuses on baking staples, and fennel seed is a savory Italian, Indian, and Mediterranean cooking spice rather than a bread or cake component. No KA correction opportunity exists here.\n\nThe fennel-seed range sits alongside the paired ground-fennel category (Chef's Resources gives 106 g/cup for the ground form, so ground fennel is nearly identical in cup density to whole fennel). This is unusual for solid seeds — cumin and mustard both become significantly lighter when ground, because their whole-seed forms pack tightly and ground powder bridges more air. Fennel is different because whole fennel seeds already pack loosely due to their crescent shape, so grinding does not create a large density change. The tight whole/ground similarity is a useful physical prediction for future elongated-seed spice additions.\n\nFor practical use, 96-100 g/cup is a reasonable working figure for recipe scaling of whole fennel seeds. A tablespoon runs about 6 grams, a teaspoon about 2 grams. Turkish and Egyptian fennel packs slightly denser due to plumper seeds; Indian saunf packs slightly lighter due to smaller seeds. When precision matters — for a large batch of Italian sausage where seed-to-meat ratio drives flavor, or for a spice blend where fennel is a primary note — weigh by grams. For casual home cooking (a pinch in a curry base, a spoonful crushed into vinaigrette), cup measurements work fine within the noise floor of the dish." }, { "id": "flax-meal", "schema_version": 3, "name": "Flax meal", "synonyms": [ "ground flaxseed", "ground flax seeds", "flaxseed meal", "milled flaxseed", "linseed meal", "ground linseed" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, spooned into the cup", "density_g_per_ml": null, "range_min": 0.4227, "range_max": 0.4734, "withheld": true, "withheld_reason": "Two sources disagree by 12%, just over the 10% milled tolerance. The variation reflects real differences in how finely the seed is milled and how the resulting oily powder settles in a cup, so this entry publishes the range rather than picking one figure.", "sources": [ { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Flax meal', 1/2 cup = 50 g, extrapolated to 100 g per cup. Density 0.4227 g/mL. Represents a fluffier reference measurement.", "density_g_per_ml": 0.4227 }, { "name": "USDA FoodData Central", "ref": "FDC 169414, Seeds, flaxseed (SR Legacy). Underlying nutrition data extrapolates to approximately 7 g per tablespoon of ground flaxseed, or 112 g per cup (0.4734 g/mL). Multiple USDA Branded Foods records for commercial ground flaxseed products (Central Market, Bob's Red Mill, and others) independently confirm 7 g per tablespoon as the industry standard serving size, supporting the 112 g per cup figure.", "density_g_per_ml": 0.4734 } ], "verified": "2026-09-20", "last_reviewed": "2026-09-20" } ], "yields": [], "notes": "Two authoritative sources disagree by 12%, just over the 10% milled tolerance. King Arthur's Ingredient Weight Chart publishes 1/2 cup at 50 g (extrapolating to 100 g per cup, 0.4227 g/mL). USDA FoodData Central and multiple commercial brands converge on 7 g per tablespoon, extrapolating to 112 g per cup (0.4734 g/mL). The gap is small but consistent across multiple brands aligning with USDA, so this entry publishes the range rather than choosing one figure.\n\nGround flaxseed (also called flax meal or flaxseed meal) is a fine oily powder produced by grinding whole flax seeds. The oil content is high (approximately 42% of the seed by weight is oil), which makes ground flax pack differently than dry powders like wheat flour. The oily coating on each particle causes slight clumping that responds to scoop-and-shake versus spoon-and-level techniques, producing the small but real density variation between sources. King Arthur likely measures a fluffier spoon-and-level fill; the brand consensus at 112 g per cup reflects the standard nutrition-label serving that assumes a settled measure.\n\nGround flaxseed is a common vegan egg substitute: 1 tablespoon of ground flax (approximately 7 g) mixed with 3 tablespoons of water and left for 5 minutes forms a gel that binds baked goods similarly to a single chicken egg. The substitution ratio depends on getting the flax weight right, which is why weighing is preferable to volume measurement for this use.\n\nWhole flaxseed is a distinct product measured separately on this site's forthcoming whole-flaxseed entry. King Arthur lists whole flaxseed at 35 g per 1/4 cup, extrapolating to 140 g per cup, roughly 40% denser than the ground form. The density difference is not a measurement error: whole seeds pack tightly with minimal air space between the smooth oval shapes, while ground meal has more air space in the powder matrix. The distinction matters because whole flaxseeds pass through the digestive system largely intact due to their hard outer hull; only ground flax delivers the omega-3 fatty acids (alpha-linolenic acid) and lignans that make flax nutritionally significant.\n\nGolden flaxseed and brown flaxseed have the same density and identical omega-3 content. Golden flax has a milder flavor and is preferred for light-colored baked goods; brown flax is more traditional. Both are Linum usitatissimum, the same species.\n\nStorage matters for accuracy over time. Ground flaxseed's high oil content and increased surface area from grinding cause it to oxidize rapidly at room temperature, developing a rancid flavor within weeks. Commercially packaged flax meal typically includes antioxidants or nitrogen-flushed packaging to slow this; once opened, refrigeration or freezer storage is required. Freshly-ground flax from a spice grinder is optimal but must be used within days. Rancidity does not significantly affect the density, but it does affect the flavor of finished baked goods and reduces the omega-3 bioactivity.\n\nFlax meal sits in the milled category alongside flours and other ground powders. The 10% category tolerance applies here, and the observed 12% gap between authoritative sources is just outside it, warranting the range publish rather than a single figure.\n\nRelated products: whole flaxseed (denser at approximately 140-150 g per cup, separate entry planned), flaxseed oil (a distinct product in the fat category, not covered here), chia seed (a nutritionally similar seed sometimes substituted for flax in vegan egg preparations, but with different density). Linseed is the British and European name for flaxseed; the two terms refer to the same seed.\n\nNo standards body publishes a bulk density for ground flaxseed. Codex Alimentarius has no dedicated flax standard. Two authoritative sources with a small but consistent gap, so this entry is held at low confidence and range published until a third independent source resolves the disagreement.", "last_reviewed": "2026-09-20" }, { "id": "flaxseed", "schema_version": 3, "name": "Flaxseed", "synonyms": [ "whole flaxseed", "flax seeds", "linseed", "whole linseed", "brown flaxseed", "golden flaxseed" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, whole seeds loose in the cup", "density_g_per_ml": null, "range_min": 0.5918, "range_max": 0.7101, "withheld": true, "withheld_reason": "Two sources disagree by 20.0%, far over the 10% milled tolerance. USDA publishes 168 g per cup, King Arthur publishes 140 g per cup. Neither source documents a filling method. Whole flaxseed is small, hard and glossy, so seeds slide freely against each other and settle differently depending on scoop technique. A settled or lightly-tapped fill approaches the USDA figure; a loose bag-to-cup scoop approaches King Arthur. This entry publishes the range rather than picking one figure.", "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 169414, Seeds, flaxseed (SR Legacy). Published: 1 cup whole = 168 g. Density 0.7101 g/mL.", "density_g_per_ml": 0.7101 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Flaxseed', 1/4 cup = 35 g (140 g/cup). Density 0.5918 g/mL.", "density_g_per_ml": 0.5918 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Two sources 20 percent apart, far outside the 10 percent milled tolerance, so this entry publishes the range rather than a single figure. USDA FoodData Central FDC 169414 (Seeds, flaxseed, SR Legacy) publishes 1 cup whole = 168 g, implying a density of 0.7101 g/mL. King Arthur's Ingredient Weight Chart lists 'Flaxseed' at 1/4 cup = 35 g, extrapolating to 140 g per cup and 0.5918 g/mL. The USDA figure is confirmed by multiple independent mirrors of the same FDC record, each showing 168 g as the direct 1-cup-whole portion.\n\nWhole flaxseed is small, hard and glossy — brown or golden ovals about 4 to 6 mm long — and should intuitively pack densely because small hard particles fill air gaps efficiently. Both source figures are physically possible for this seed but they imply meaningfully different fill states. The USDA figure at 0.7101 g/mL is consistent with a settled or lightly-tapped scoop where seeds have had a chance to migrate into voids. The King Arthur figure at 0.5918 g/mL is consistent with a loose scoop straight from bag to cup with no settling. Small hard seeds are unusually sensitive to this handling difference because they slide against each other easily: a firm tap or a shake can shift a cup mass by 15 to 20 percent, which is exactly the size of the observed gap. Neither source documents its method.\n\nThe contrast with flax meal published on this site is instructive. Flax meal, which is whole flaxseed ground to a coarse powder, is published here as a range of 100 to 112 g per cup, meaningfully less dense than whole flaxseed. This is the opposite of naive intuition: grinding usually seems as though it should increase density by breaking up the particles and letting them fill gaps. In practice, grinding a small hard seed into a coarse powder replaces sliding contacts between smooth ovals with static contacts between rough angular fragments, and the rough particles bridge and create voids that intact seeds do not. The same physical pattern shows up in USDA's tables for hazelnuts, where whole kernels publish at 135 g per cup and chopped kernels sit at 115 g per cup. Small whole units pack denser than their ground equivalents when the ground product is a coarse meal rather than a fine flour.\n\nProduct variants: brown flaxseed and golden flaxseed differ in seed-coat pigmentation but pack at essentially the same density and are treated as one entry here. Milled flaxseed and cold-milled flaxseed products marketed under Bob's Red Mill and similar brands are the same product category as flax meal already published on this site. Flaxseed oil, sometimes marketed as linseed oil, is a distinct product not currently covered by this site's oil entries because King Arthur does not list it and USDA data shows significant brand variation.\n\nFlaxseed is placed in the milled category alongside other whole seeds and grains, and their milled products. The category rule tracks physical packing behavior: whole seeds pack by scoop with air gaps in the same way as whole grains and whole nuts. The 10 percent category tolerance applies here, and the 20 percent observed gap between sources is a genuine physical disagreement that likely reflects fill-method sensitivity rather than a measurement error in either source.\n\nNo standards body publishes a bulk density for flaxseed. Two authoritative sources with an over-tolerance gap and no method documentation to arbitrate, so this entry is held at low confidence and range-published until a third independent source or a documented fill method resolves the disagreement.", "last_reviewed": "2026-09-21" }, { "id": "graham-cracker-crumbs", "schema_version": 3, "name": "Graham Cracker Crumbs", "synonyms": [ "graham cracker crumbs", "graham crumbs", "crushed graham crackers", "graham cracker crumb", "graham crust crumbs" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, pre-crushed or home-crushed graham cracker crumbs", "density_g_per_ml": 0.4328, "sources": [ { "name": "Nabisco Honey Maid Graham Cracker Crumbs", "ref": "Nutrition label states 2.5 Tbsp (16 g) as the serving, described on-pack as one-eighth of a 9-inch pie shell. 16 g / (2.5 × 14.787 mL) = 0.4328 g/mL, reading out to 102 g per US customary cup. Sold in 13.5 oz canisters (UPC 044000002183). Ingredients: unbleached enriched flour, sugar, graham flour (whole grain wheat), canola oil, high fructose corn syrup, palm oil, honey, leavening, salt, soy lecithin, artificial flavor.", "density_g_per_ml": 0.4328 }, { "name": "USDA FoodData Central Branded Foods (UPC 044000002183)", "ref": "USDA Branded Food record for Nabisco Honey Maid Graham Cracker Crumbs lists 108 g per metric cup = 3.6 oz per US cup = 102 g per US cup. Same underlying label data as the direct Nabisco source above (USDA Branded records are label-derived, not chemically analyzed), but confirms the figure has been submitted to and published by USDA.", "density_g_per_ml": 0.4328 }, { "name": "Keebler Graham Cracker Crumbs (USDA Branded)", "ref": "USDA Branded Food records for Keebler-brand graham cracker crumbs (including Keebler Graham Cracker Crumbs Chocolate, UPC 00030100116912, at 108 g/metric cup = 102 g/US cup) confirm convergence with Nabisco at label precision. Second major branded source at essentially the same density.", "density_g_per_ml": 0.4319 }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "Chart states 'Graham cracker crumbs (store-bought or crushed from whole) 1 cup (6 to 7 crackers) = 3.5 oz = 100 g'. 100 g / 236.588 mL = 0.4227 g/mL. Within 2% of the Nabisco/USDA figure, well under the 10% milled category tolerance — KA is correct here and is a supporting source, not a correction target.", "density_g_per_ml": 0.4227 } ], "verified": "2026-09-23", "last_reviewed": "2026-09-23" } ], "yields": [], "notes": "One cup of graham cracker crumbs weighs about 102 grams (0.432 g/mL). Nabisco Honey Maid, Keebler, and King Arthur Baking all converge at 100 to 102 grams per cup at label precision. A widely-cited 84 g/cup figure from the BakeGrams converter cites 'King Arthur Baking and USDA food database references' as its source but matches neither — the correct figure across every authority is close to 102, not 84.\n\nGraham cracker crumbs are sold pre-crushed in 13.5-ounce canisters (Nabisco Honey Maid and Keebler are the two dominant US brands) or produced at home by crushing whole graham crackers in a food processor or a zip-top bag with a rolling pin. Ingredients across brands are essentially the same: enriched wheat flour, graham flour (whole-grain wheat), sugar, an oil (canola, palm, or soybean), honey, leavening, salt, and lecithin. The crumb texture varies from very fine dust to coarse fragments depending on brand and crushing method.\n\nUSDA Branded Food Data has records for multiple graham cracker crumb products, all in the 108-110 g per metric cup range, which converts to 102-104 g per US cup. The Nabisco Honey Maid label itself (UPC 044000002183) prints a serving size of 2.5 tablespoons (16 g) — that back-calculates directly to 102 grams per cup at density 0.433 g/mL. King Arthur Baking's Ingredient Weight Chart lists graham cracker crumbs at 100 grams per cup and equates that to '6 to 7 whole crackers.' The two figures agree within 2%, well under the 10% milled category tolerance.\n\nWhole graham crackers as sold: a single full Nabisco Honey Maid rectangle weighs about 14 to 15 grams. Six to seven crackers therefore give 90 to 105 grams of crumbs, which is where KA's 100 g/cup figure comes from and why it lines up with the pre-crushed 102 figure. When crushing at home, degree of grinding matters: very fine dust-like crumbs pack denser (a scoop reads 105-110 g/cup) and coarse fragments pack looser (85-95 g/cup). Store-bought pre-crushed products are uniformly fine and sit reliably at 102.\n\nFor cheesecake and pie crust math, the classic ratio is 1.5 cups crumbs to 5 tablespoons melted butter and 2-3 tablespoons sugar for a 9-inch springform pan. At 102 g/cup, that is 153 g crumbs, 70 g butter, 25-40 g sugar — a butter-to-crumb ratio around 0.46 that produces a crust that holds together when sliced but does not turn greasy. Using BakeGrams' 84 g/cup would call for 126 g of crumbs and would leave the butter overbalanced, producing a crust that pools fat during pre-baking and slips off the pan when sliced. Using KA's 100 g/cup rather than 102 makes no practical difference.\n\nCommon substitutions all sit near the same density band. Digestive biscuits (McVitie's) can substitute 1:1 by weight at about 100 g per cup crushed. Nabisco Famous Chocolate Wafer crumbs are darker and less sweet but similarly dense (~100 g/cup). Vanilla wafer crumbs (Nabisco Nilla) run slightly lighter at about 85-90 g/cup and produce a more crumbly, less structured crust. For gluten-free bakes, gluten-free graham-style crackers from Kinnikinnick or Pamela's approximate the density but may need slightly more butter to bind well because gluten-free flour absorbs fat less efficiently." }, { "id": "graham-flour", "schema_version": 3, "name": "Graham Flour", "synonyms": [ "whole wheat graham flour", "coarse whole wheat flour", "graham whole wheat flour", "stone ground graham flour" ], "category": "milled", "default_state": "standard", "confidence": "high", "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": 0.5072, "sources": [ { "name": "Bob's Red Mill Whole Wheat Graham Flour (USDA Branded, UPC 039978003096)", "ref": "Ingredients: whole grain hard red spring wheat. Nutrition label: 1/4 cup (30 g), 110 kcal. Extrapolates to 120 g per US cup. Bob's Red Mill sells graham flour as a distinct SKU from their whole wheat pastry flour.", "density_g_per_ml": 0.5072 }, { "name": "Bob's Red Mill Organic Whole Wheat Graham Flour (USDA Branded, UPC 039978009906)", "ref": "Ingredients: organic whole grain hard red spring wheat. Nutrition label: 1/4 cup (30 g), 110 kcal. Same 120 g per US cup as the conventional SKU. Confirms convergence across two Bob's Red Mill product lines.", "density_g_per_ml": 0.5072 }, { "name": "Hodgson Mill Whole Wheat Graham Flour", "ref": "Stone-ground whole wheat, sold as a distinct product from Hodgson Mill's whole wheat pastry flour. Nutrition data extrapolates to approximately 120 g per US cup, matching Bob's Red Mill. Hodgson Mill's packaging explicitly notes the graham vs pastry flour distinction and directs pastry users to a separate SKU.", "density_g_per_ml": 0.5072 }, { "name": "King Arthur Baking ingredient weight chart", "ref": "Listed as 'Whole Wheat Pastry Flour / Graham Flour' at 1 cup = 3 3/8 oz = 96 g, treating the two products as interchangeable. 20% below the multi-producer convergence at 120 g/cup for graham flour as sold by Bob's Red Mill and Hodgson Mill.", "density_g_per_ml": 0.4057, "rejected": true, "rejection_reason": "King Arthur's chart conflates two distinct products under one line item: 'Whole Wheat Pastry Flour / Graham Flour' at 96 g/cup. The 96 g figure is defensible for a soft-wheat pastry flour (KA's own whole wheat pastry flour is milled from soft wheat), but it does not describe graham flour as sold by Bob's Red Mill (hard red spring wheat, coarser grind) or Hodgson Mill. Multi-producer convergence shows graham flour proper at 120 g/cup, 25% higher than KA's figure. This is a scope error, not a pure density measurement error: KA has treated a distinct product category as if it were their own house product." } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "TL;DR: 1 cup of graham flour weighs 120 grams. High confidence, based on convergence across Bob's Red Mill (two SKUs) and Hodgson Mill. King Arthur lists 96 g/cup by lumping graham flour together with whole wheat pastry flour on their chart; that figure works for a soft-wheat pastry flour but understates true graham flour by 25 percent.\n\nGraham flour is a coarse-ground whole wheat flour named after Sylvester Graham, a 19th-century American reformist minister who championed unrefined whole-grain baking as part of a broader dietary movement. Traditional graham flour is milled with a distinctive technique: the endosperm is ground fine, as in white flour, while the bran and germ are ground coarsely and combined back in, producing a flour with visible bran flecks and a slightly grainy texture. Modern commercial graham flour, including Bob's Red Mill and Hodgson Mill's products, is generally milled from hard red spring wheat and ground more coarsely than standard whole wheat flour. It is the base ingredient in true graham crackers, though most commercial graham crackers today use regular whole wheat flour or even bleached white flour with molasses and honey for the characteristic flavor.\n\nGraham flour is a distinct product from whole wheat pastry flour, though the two are often confused. Whole wheat pastry flour is milled from soft white wheat, which has lower protein content (around 9 percent versus 12 to 13 percent for hard red wheat) and produces tender results in cookies, cakes, and biscuits. Graham flour with its higher-protein hard red wheat is better suited to hearty breads, muffins, pancakes, and graham crackers, where a coarser texture and more assertive wheat flavor are desired. Bob's Red Mill sells both products as separate SKUs, and Hodgson Mill's graham flour packaging explicitly directs pastry-flour users to their separate whole wheat pastry flour product. King Arthur is the notable exception: their ingredient weight chart lumps the two under a single line item, 'Whole Wheat Pastry Flour / Graham Flour,' both at 96 grams per cup. This is idiosyncratic to King Arthur and does not reflect industry consensus.\n\nThe source data for graham flour proper converges cleanly. Bob's Red Mill's regular Whole Wheat Graham Flour (USDA Branded database entry, UPC 039978003096) lists 30 grams per quarter-cup serving on the nutrition panel, extrapolating to 120 grams per US cup. Their organic version (UPC 039978009906) lists the same 30 grams per quarter cup, confirming the figure across two production lines. Hodgson Mill's graham flour extrapolates to the same 120 grams per cup from its serving-size disclosure. Three producers, one figure.\n\nKing Arthur's 96 grams per cup is 25 percent below this convergence. The rejection here is not a pure density measurement error, unlike the sweet rice flour or rice flour corrections where King Arthur applied a fluid-ounce interpretation to a weight measurement. Instead, King Arthur has treated graham flour as if it were their whole wheat pastry flour, effectively erasing the distinction between two different products. Their 96-gram figure is probably accurate for their own whole wheat pastry flour, which is milled from soft wheat and packs less densely, but a baker following that figure and reaching for a bag of Bob's Red Mill graham flour will under-weigh by a full quarter.\n\nFor practical baking, use 120 grams per cup for graham flour from any of the major producers that sell it as a distinct product. There is no FDA identity standard for graham flour in the United States, so there is real product variation between brands, but the 120-gram figure holds for the mainstream retail options. Weighing directly from the bag eliminates any variance from grind coarseness or brand-specific milling." }, { "id": "hazelnut-flour", "schema_version": 3, "name": "Hazelnut Flour", "synonyms": [ "hazelnut meal", "ground hazelnuts", "filbert flour", "hazelnut meal flour", "finely ground hazelnuts" ], "category": "milled", "default_state": "standard", "confidence": "low", "working_figure": { "grams": 112, "basis": "for fine store-bought hazelnut flour; meal ground at home is lighter" }, "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": null, "range_min": 0.317, "range_max": 0.4734, "withheld": true, "withheld_reason": "Sources span 75-112 g per cup, a 49% gap, far over the 10% tolerance. USDA SR Legacy weighs a cup of ground hazelnuts at 75 g, King Arthur gives 89 g for hazelnut flour, and Bob's Red Mill 112 g for its finely ground hazelnut flour. Grind fineness decides where a cup lands; no single figure is published.", "sources": [ { "name": "USDA SR Legacy \"Nuts, hazelnuts or filberts\" (FDC 170581)", "ref": "USDA Standard Release publishes 1 cup ground = 75 g (density 0.317 g/mL), 1 cup chopped = 115 g and 1 cup whole = 135 g. Fat 60.8 g, protein 14.9 g, carbohydrate 16.7 g, water 5.3 g per 100 g.", "fdc_id": 170581, "density_g_per_ml": 0.317 }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "KA lists \"Hazelnut flour\" at 1 cup = 3 1/8 oz = 89 g, density 0.376 g/mL.", "density_g_per_ml": 0.3762 }, { "name": "Bob's Red Mill Flour Weight Chart", "ref": "Bob's Red Mill lists Hazelnut Flour at 1/4 cup = 28 g, 1 cup = 112 g (density 0.473 g/mL), spoon-and-level method. The current label on Bob's Red Mill Finely Ground Hazelnut Flour (Meal), 14-oz bag (Vitacost), prints 2 Tbsp (14 g), the same 112 g per cup; ingredient: hazelnuts.", "density_g_per_ml": 0.4734 } ], "verified": "2026-10-26", "last_reviewed": "2026-10-26" } ], "yields": [], "notes": "A cup of hazelnut flour weighs 75 to 112 g (2.6 to 4 oz). USDA weighs a cup of ground hazelnuts at 75 g, King Arthur gives 89 g, and Bob's Red Mill gives 112 g for its finely ground flour. The gap is far over the 10% tolerance, so this entry publishes the range. For store-bought fine hazelnut flour, spooned and levelled, 112 g is the figure to use; for hazelnuts ground at home, use about 75 to 90 g.\n\nIn the US, hazelnut flour and hazelnut meal are the same product: whole hazelnuts ground fine. Bob's Red Mill grinds whole hazelnuts and some brands use blanched ones; none removes the oil. Hazelnuts are about 61% fat, so the flour is closer to a nut butter in waiting than to a grain flour. It is used in gluten-free and low-carbohydrate baking, in tortes, Linzer dough and macarons, and as a richer stand-in for almond flour.\n\nUSDA SR Legacy \"Nuts, hazelnuts or filberts\" (FDC 170581) gives 1 cup ground at 75 g, 1 cup chopped at 115 g and 1 cup whole at 135 g. King Arthur gives hazelnut flour at 3 1/8 oz, 89 g. Bob's Red Mill's flour weight chart gives 28 g per quarter cup, 112 g per cup, by spooning and levelling, and its current bag labels 2 tablespoons as 14 g, the same figure. Thrive Market's label, as transcribed on a nutrition site, gives 2 tablespoons as 13 g, about 104 g per cup.\n\nWhy it varies: fineness. Nuts ground in a food processor or nut grinder give a coarse, fluffy meal of uneven crumbs that stand apart and hold air, which is USDA's 75 g. Commercial hazelnut flour is ground much finer, and fine, oily particles pack closely and cling together, so the cup holds more nut. King Arthur's 89 g sits between the two. It is inside the range and cannot be shown wrong, so it is accepted.\n\nThe physical check: hazelnut kernels, with their fat, are about as dense as water, a little more. Whole hazelnuts weigh 135 g per cup in USDA's measurement, the nuts filling about half the cup. Coarse meal at 75 g fills under a third, and fine flour at 112 g about 45%, more than coarse meal but still less than whole nuts, which is the expected order.\n\nOne caution on Bob's Red Mill: its chart gives the same 28 g quarter cup for hazelnut, almond and quinoa flour, and 28 g is one ounce, a common rounded label serving. Its newer label's 14 g per 2 tablespoons and Thrive Market's 13 g point to the same density, so the figure stands for fine flour, but it is a label-sized number. Almond flour on this site is withheld for the same reason: King Arthur gives 96 g and Bob's Red Mill 112 g.\n\nPractical guidance: use 112 g per cup for fine store-bought hazelnut flour, 28 g per quarter cup and about 7 g per tablespoon; use 75 to 90 g per cup for meal ground at home. Spoon it in and level without pressing, because the oil lets it compact. When substituting hazelnut flour for almond flour, swap by weight, not by cup, and keep the bag in the freezer, since the fat turns rancid at room temperature." }, { "id": "hazelnuts", "schema_version": 3, "name": "Hazelnuts", "synonyms": [ "whole hazelnuts", "filberts", "hazelnut kernels", "raw hazelnuts" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, whole kernels loose in the cup", "density_g_per_ml": 0.5706, "sources": [ { "name": "USDA FoodData Central", "ref": "Nuts, hazelnuts or filberts (SR Legacy 12120). Published: 1 cup whole = 135 g. Density 0.5706 g/mL.", "density_g_per_ml": 0.5706 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Hazelnuts (whole)', 1 cup = 142 g. Density 0.6003 g/mL.", "density_g_per_ml": 0.6003 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Two sources agree within tolerance. USDA FoodData Central lists Nuts, hazelnuts or filberts (SR Legacy 12120) at 1 cup whole = 135 g, implying a density of 0.5706 g/mL. King Arthur's Ingredient Weight Chart lists 'Hazelnuts (whole)' at 1 cup = 142 g, implying 0.6003 g/mL. The gap between them is 5.19%, comfortably inside the 10% milled tolerance for whole and chopped nuts, so this entry publishes USDA's figure of 135 g per cup and names both sources. Neither source names a specific filling method.\n\nHazelnut kernels are roughly spherical, about 15 to 20 mm in diameter, and pack more efficiently than the crescent shapes of pecan or walnut halves. This is visible in the density figures across this site: pecan halves publish at 99 g per cup (0.4185 g/mL), walnut halves publish as a range of 99 to 128 g per cup because their sources disagree, pistachios publish at 123 g per cup (0.5199 g/mL), and hazelnuts sit higher still at 135 g per cup. Sphere packing has known geometric efficiency, and hazelnut kernels approximate that geometry more closely than the flatter or more irregular kernels of related tree nuts.\n\nChopped hazelnuts are a separate product with a different density and are not yet published on this site. USDA's own portion table for SR Legacy 12120 also lists 1 cup chopped at 115 g, roughly 15 percent lower than the whole-kernel figure. The reduction under chopping is unusual because most nut chopping increases apparent density by filling air gaps, as documented for pecans on this site, but hazelnut chopping produces angular fragments that can bridge and create voids that intact spheres do not. A chopped-hazelnut entry will be added when a second authoritative source (King Arthur does not list chopped or ground hazelnuts) becomes available to clear the two-source rule.\n\nProduct variants: raw versus dry-roasted hazelnuts differ by approximately 4% in moisture, which slightly increases apparent density after roasting but rarely crosses tolerance. Blanched hazelnuts, with the skin removed, show a very small mass reduction from the removed skin, well inside noise. Filbert is a common alternate name; the two words refer to the same genus (Corylus) and are used interchangeably in USDA nomenclature. In-shell hazelnuts roughly double the total weight because shell mass approaches kernel mass, and cup measurements of in-shell nuts are not useful for baking.\n\nHazelnuts are placed in the milled category alongside other whole and chopped nuts, whole seeds and whole grains. The category rule assigns these to milled because they pack by scoop with air gaps rather than filling by fluid displacement. The 10% category tolerance applies here, and the 5.19% observed gap between sources is well inside it.\n\nNo standards body publishes a bulk density for hazelnuts or other tree nuts. Codex Alimentarius has a standard covering hazelnut kernels for moisture content, defect tolerances, shell fragment limits and aflatoxin limits, but not physical density. Two independent authoritative sources agree within tolerance, so this entry is held at medium confidence. A third independent source, such as a professional culinary reference or a producer's laboratory measurement, matching within tolerance would move it to high confidence.", "last_reviewed": "2026-09-21" }, { "id": "hemp-hearts", "schema_version": 3, "name": "Hemp hearts", "synonyms": [ "hemp hearts", "shelled hemp seeds", "hulled hemp seeds", "hemp seed kernels", "raw shelled hemp seeds", "cannabis sativa shelled seeds" ], "category": "milled", "default_state": "standard", "confidence": "high", "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": 0.6763, "range_min": null, "range_max": null, "sources": [ { "name": "USDA FoodData Central", "fdc_id": 170148, "ref": "FDC entry 170148 'Seeds, hemp seed, hulled', Standard Release. Direct portion: 3 tablespoons = 30 g, back-calculating to 160 g/cup (density 0.6763 g/mL) using 16 tbsp per US cup. USDA does not list a direct cup portion but the tablespoon figure is unambiguous. Cross-validated against aqua-calc's USDA-derived density of 169 g/metric cup, which converts to 160 g/US cup precisely.", "density_g_per_ml": 0.6763 }, { "name": "Manitoba Harvest (with multi-brand cross-validation)", "ref": "Manitoba Harvest is the global market leader in commercial hemp hearts (Canadian producer since 1998, category-defining brand). Retail nutrition label on both US Natural Hemp Hearts and Canadian Organic Hemp Hearts: 3 tablespoons = 30 g, back-calculating to 160 g/cup and density 0.6763 g/mL — identical to USDA. Kirkland Signature Organic Hemp Hearts (Costco private label) confirms at the same 3 tbsp = 30 g figure. Every major commercial hemp hearts brand publishes the identical 30 g per 3 tablespoons on retail nutrition labels, matching the USDA Standard Release figure precisely and providing the strongest cross-source convergence on this site.", "density_g_per_ml": 0.6763 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Hemp hearts publish at 160 grams per cup with high confidence because four independent authoritative sources converge precisely on this figure. USDA FoodData Central entry 170148 (Seeds, hemp seed, hulled) publishes 30 grams per 3 tablespoons, which back-calculates to 160 g/cup (density 0.6763 g/mL). Manitoba Harvest, the global market leader in commercial hemp hearts, publishes the identical 30 grams per 3 tablespoons on both its US Natural Hemp Hearts and Canadian Organic Hemp Hearts retail packaging. Kirkland Signature Organic Hemp Hearts (Costco's private label) matches at 30 grams per 3 tablespoons. Aqua-calc's USDA-derived density calculation confirms 160 g/US cup via metric-to-US conversion. This four-source convergence at a single figure is unusual on this site and reflects hemp hearts' remarkable consistency across brands.\n\nHemp hearts (also called shelled hemp seeds or hulled hemp seeds) are the soft inner kernels of the Cannabis sativa seed, revealed after the harder outer hull is removed via mechanical dehulling. Whole hemp seeds (unshelled) have a crunchy nut-like exterior and would be significantly denser per cup because the hull adds mass without proportional volume, similar to the pearled versus whole grain distinction in farro on this site. This entry covers hemp HEARTS specifically — the shelled product marketed by every major North American brand under the hemp hearts trade name. The product is unrelated to psychoactive cannabis: hemp seeds contain no meaningful THC and hemp hearts are legally sold as a food across North America and Europe.\n\nPhysical mechanism for the 160 g/cup density: hemp hearts are small (approximately 2-4 mm), soft, and irregularly shaped with a high fat content (49 percent by weight, mostly polyunsaturated omega-3 and omega-6 oils, plus 32 percent protein). The soft texture allows them to pack fairly densely, but the oil coating prevents tight interlocking and the irregular shape creates persistent air voids between particles. The net result at 160 g/cup (density 0.6763 g/mL) is heavier than most flours (all-purpose 120 g/cup) but lighter than most intact whole grains (farro pearled 180 g/cup, amaranth grain 193 g/cup) — a density profile characteristic of fatty seed kernels rather than starchy grains or airy powders.\n\nCompared to other seeds and small kernels on the site, hemp hearts at 160 g/cup pack lighter than intact whole grains and heavier than most milled flours. The comparison to other seed kernels places hemp hearts in the middle of the seed density spectrum — smaller and softer than pumpkin seed kernels, larger and fatter than chia or flax seeds. USDA does not publish a whole-hemp-seed (unshelled) cup portion; the shelled hemp hearts figure at 160 g/cup is the only cup weight consistently established across sources.\n\nCategory assignment is milled, matching other seeds, whole grains, and fibrous plant particulates on the site under the physical-packing definition.\n\nConfidence is high reflecting the four-source convergence — USDA Standard Release cross-validated by Manitoba Harvest (market leader), Kirkland Signature, and independent density calculation, all agreeing precisely at 30 g per 3 tablespoons. High confidence for a range-publish moat play is rare on this site; hemp hearts earn it because commercial hemp seed processing produces exceptionally consistent product across brands, and USDA's measured figure aligns with every retail label. For baking and cooking accuracy, weigh hemp hearts on a kitchen scale, but the 160 g/cup figure is reliable enough to use for recipe planning without a scale. This entry represents a moat play for the site: hemp hearts is a modern superfood added to the North American market after the King Arthur Ingredient Weight Chart was established, and no other cup-to-gram reference cross-validates the USDA figure against multiple commercial brands with the physical explanation of why fatty seed kernels pack at their characteristic density between flours and whole grains." }, { "id": "hulled-barley", "schema_version": 3, "name": "Hulled Barley", "synonyms": [ "whole grain barley", "whole barley", "unpearled barley", "dehulled barley", "barley groats", "hull-less barley", "hulless barley" ], "category": "milled", "default_state": "standard", "confidence": "high", "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": 0.7777, "sources": [ { "name": "USDA FoodData Central — Barley, hulled", "ref": "USDA SR Legacy entry (NDB 20004, FDC 170283) lists 1 cup = 184 g directly as a standard portion, yielding a density of 0.7777 g/mL. Anchor for the whole-grain barley cluster.", "fdc_id": 170283, "density_g_per_ml": 0.7777 }, { "name": "Bob's Red Mill Whole Hull-Less Barley", "ref": "Bob's Red Mill Whole Hull-Less Barley nutrition label lists 1/4 cup = 46 g, extrapolating to 184 g per US cup — matches USDA exactly. Bob's uses the 'hull-less' variety (naked barley where the hull comes off naturally during threshing) rather than mechanically dehulled traditional barley; both are whole-grain and pack at the same density. Confirmed via Fatsecret and PCC Community Markets bulk-organic label (PLU 3850).", "density_g_per_ml": 0.7777 }, { "name": "Whole Foods Bulk Organic Barley (Hulled)", "ref": "Whole Foods bulk commodity label for Organic Barley (Hulled) lists 1/4 cup = 46 g, extrapolating to 184 g per US cup — third independent convergence on the USDA anchor.", "density_g_per_ml": 0.7777 }, { "name": "King Arthur Baking (KA-blind on hulled)", "ref": "King Arthur does not publish a per-cup weight for hulled barley in their Ingredient Weight Chart. They do list Barley (pearled) at 1 cup = 7 1/2 oz = 213 g, which is 16% denser than hulled barley — the difference reflects removal of the bran layer during pearling (see notes). No KA correction applies to hulled barley." } ], "verified": "2026-09-22", "last_reviewed": "2026-09-22" } ], "yields": [], "notes": "TL;DR: **One US cup of hulled barley weighs 184 g** — USDA FoodData Central, Bob's Red Mill, and Whole Foods bulk all converge on this figure exactly. Density 0.7777 g/mL. Contrary to a common intuition, hulled barley is roughly 10-15% *lighter* per cup than pearl barley (200-216 g/cup), because the bran layer that's retained in hulled barley creates surface irregularities that keep kernels from packing as tightly as polished pearl.\n\nHulled barley is the whole grain of *Hordeum vulgare* with only the inedible outer hull mechanically removed. All three bran layers and the germ are retained, making it a true whole grain with the full fibre, mineral, and B-vitamin profile intact. Commercial barley comes in three progressively polished forms that occupy distinct positions in the ExactCups density ladder: **hulled barley** (this entry, 184 g/cup, whole grain, ~1 hour cook time), **pot barley** or Scotch barley (partially polished, bran mostly intact, an intermediate step less common in US markets), and **pearl barley** (fully polished, bran removed, 200-216 g/cup, 30-45 minute cook time). A fourth variant, **hull-less barley** (also spelled hulless), is a botanically different variety of *Hordeum vulgare* whose hull separates naturally during threshing rather than requiring mechanical dehulling. For all cooking and density purposes hull-less barley is functionally identical to traditional hulled barley — Bob's Red Mill markets their whole-grain barley under both labels, and the per-cup weight is the same 184 g.\n\nThe density convergence across sources is unusually clean. USDA FDC 170283 lists 1 cup = 184 g as a direct standard portion. Bob's Red Mill's Whole Hull-Less Barley nutrition label lists 1/4 cup = 46 g, extrapolating to exactly 184 g/cup — a perfect USDA match. Whole Foods' bulk commodity label for Organic Barley (Hulled) lists the same 46 g per quarter cup. Three independent sources at 184 g/cup with zero spread justify a HIGH confidence single-figure publish, rare for grains where retail variance usually creates a modest range.\n\nThe counter-intuitive part is why hulled barley is lighter than pearl. Bakers who think about whole grains often assume that retaining the bran adds weight per cup — the bran is dense fibre, and it's on the outside of the kernel. But the pack density of a cup of loose grain is dominated by how efficiently kernels tessellate against each other, not by the bran's own density. Hulled barley's rough, uneven bran-coated surface creates air pockets between kernels; pearl barley's polished-smooth exterior lets kernels nest more tightly. The same phenomenon shows up in brown rice (roughly 190 g/cup) vs white long-grain rice (roughly 190-200 g/cup, with the difference varying by variety and grain length), and in wheat berries (about 195 g/cup whole) vs finely-milled bulgur (denser). Pearl barley's higher per-cup weight reflects tighter packing, not more matter per kernel.\n\nKing Arthur does not publish a weight for hulled barley in their Ingredient Weight Chart, though they do list Barley (pearled) at 7 1/2 oz = 213 g/cup — consistent with the pearl cluster at 200-216 g/cup, and 16% denser than hulled. That density gap of 29 g/cup is exactly what a recipe calling for \"1 cup pearled barley\" pays if it silently swaps to hulled: about 4 grams of fibre and 1.5 grams of protein gained per cup, along with a longer cook time and chewier texture.\n\nPractical cook recommendation: weigh hulled barley at 184 g per cup, 46 g per quarter cup. Cooking ratio is 1 part barley to 3 parts water for a firm chewy texture (85-90 minutes on the stove), or 1:4 for a softer risotto-adjacent finish. Rinse before cooking to wash off any grain dust from milling. When substituting hulled for pearl barley in a soup or pilaf recipe, use the same volume but add 30-40 minutes to the cook time and expect a firmer, chewier bite; when substituting by weight, use the same weight and expect the same yield ratio since both are dry grain absorbing similar water proportions." }, { "id": "instant-coffee", "schema_version": 3, "name": "Instant Coffee", "synonyms": [ "instant coffee powder", "soluble coffee", "coffee powder", "instant coffee crystals", "freeze-dried coffee", "spray-dried coffee" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, spooned", "density_g_per_ml": null, "range_min": 0.1817, "range_max": 0.4058, "withheld": true, "withheld_reason": "Cup weight varies from 43 g (level teaspoons at 0.9g each) to 96 g (label and rounded-teaspoon convention at 2g each). Instant coffee is unusually light (0.2 g/mL physical density), so scoop technique dominates variance more than brand or drying method.", "sources": [ { "name": "USDA reference for instant coffee density", "ref": "USDA lists 1 rounded teaspoon of instant coffee as 1.8g, so a rounded-tsp cup measures 86 g/cup (48 tsp x 1.8g). Widely cited in caffeine and nutrition references.", "density_g_per_ml": 0.3636 }, { "name": "Nescafe nutrition label", "ref": "Serving size 1 teaspoon (2g), per Nescafe product labels. Multiplied to 48 tsp/cup = 96 g/cup. Reflects the rounded and heaping-tsp measurement most consumers use.", "density_g_per_ml": 0.4058 }, { "name": "Folgers Instant Coffee nutrition label", "ref": "Serving size 1 teaspoon (2g), consistent with Nescafe. Multiplied to 96 g/cup.", "density_g_per_ml": 0.4058 }, { "name": "ChefSolver density reference", "ref": "Physical density of instant coffee measured at 0.203 g/mL, giving a level cup at approximately 48 g/cup. Notes that compaction can alter measurement by 30-50% due to the porous granule structure.", "density_g_per_ml": 0.203 }, { "name": "Espresso Coffee Guide (industry technical reference)", "ref": "Spray-dried instant coffee particles have a documented particle density of about 0.22 g/mL, essentially identical to freeze-dried products at the level-scoop density. Confirms that drying method does not meaningfully affect cup weight.", "density_g_per_ml": 0.22 } ], "verified": "2026-09-22", "last_reviewed": "2026-09-22" } ], "yields": [], "notes": "TL;DR: Instant coffee density ranges from 43 g/cup (level teaspoons) to 96 g/cup (label and rounded-teaspoon convention), driven more by scoop technique than by brand. It's one of the lightest ingredients in a baking kitchen. Companion to espresso powder, but not a 1:1 substitute.\n\nInstant coffee is dehydrated brewed coffee, either spray-dried into fine porous particles (older Nescafe, Folgers) or freeze-dried into larger crystals (Nescafe Gold, Taster's Choice, most modern premium instants). Bakers use it to add coffee flavor to chocolate cakes and cookies (enhances chocolate intensity even at low concentrations), tiramisu, coffee buttercream, and coffee ice cream. The typical baking dose is 1 to 2 teaspoons dissolved in a warm liquid before mixing into the batter.\n\nCup weight is unusually variable because instant coffee is the lightest dry ingredient most home bakers encounter. Its physical density sits at roughly 0.2 g/mL (less than a quarter of water, less than half of all-purpose flour), which means the difference between a level and heaping teaspoon is proportionally larger than for denser ingredients. A level teaspoon weighs about 0.9g; a rounded teaspoon (USDA convention) weighs about 1.8g; a jar's nutrition label typically states 2g per teaspoon, reflecting the heaping-teaspoon measurement most people use when scooping. Multiplied to a full cup: level teaspoons give 43 g/cup (48 tsp x 0.9g), rounded teaspoons per USDA give 86 g/cup (48 tsp x 1.8g), and label convention per Nescafe and Folgers gives 96 g/cup (48 tsp x 2g).\n\nChefSolver publishes 0.203 g/mL as the true physical density, matching a level scoop of freeze-dried granules. Spray-dried instant coffee particles have a documented density of about 0.22 g/mL per Espresso Coffee Guide, essentially identical. King Arthur's Ingredient Weight Chart does not list instant coffee (only espresso powder at 112 g/cup), leaving the volume-to-weight conversion largely unstandardized across baking recipes.\n\nSubstitution equivalence with espresso powder is well-established: King Arthur publishes 1 and 1/2 teaspoons of instant coffee per 1 teaspoon of espresso powder. The math works out by weight solids per volume: espresso powder is a more concentrated brew dehydrated into denser particles, so a smaller volume delivers the same coffee-solids intensity. A recipe calling for 1 tablespoon espresso powder wants 1 and 1/2 tablespoons instant coffee, roughly 2.7g instant against 7g espresso powder. It's still not a 1:1 gram substitution because instant coffee is genuinely less concentrated in coffee solids per gram, so more volume compensates.\n\nFreeze-dried versus spray-dried does not change cup weight meaningfully at the level-scoop density (both around 0.2 g/mL). What changes is dissolution behavior: freeze-dried crystals dissolve into hot water more cleanly, spray-dried powder can leave sediment in cold liquids. For batter incorporation, dissolve fully in a small volume of hot water or hot liquid from the recipe before mixing into wet ingredients, to avoid speckled crumb.\n\nPractical recommendation: weigh instant coffee for any recipe that names a specific gram amount; a scale reading in 1-gram increments is precise enough. If working from teaspoons, keep scoop technique consistent within a recipe and never mix level and rounded scoops between measurements. For a 1 to 2 teaspoon coffee-flavor dose in cakes or cookies, the level and rounded difference amounts to less than 2g of coffee solids and is unlikely to derail the recipe, but for stronger coffee-forward bakes (mocha frostings, coffee ice cream), weigh to hit the intended intensity." }, { "id": "instant-potato-flakes", "schema_version": 3, "name": "Instant Potato Flakes", "synonyms": [ "instant potato flakes", "dried potato flakes", "dehydrated potato flakes", "instant mashed potatoes", "instant mashed potato flakes", "potato flakes" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": null, "range_min": 0.2283, "range_max": 0.3635, "withheld": true, "withheld_reason": "Retail producer labels cluster tightly at 54-69 g/cup (Bob's Red Mill 54, USDA-branded Great Value/Betty Crocker 57, Shiloh Farms 57, USDA-branded Dehydrated Potato Flakes 69, Idahoan Original 66); King Arthur's Ingredient Weight Chart sits at 86 g/cup, about 25-59% above the retail consensus. The gap reflects real product-form variance — standard consumer flakes are large, loose, and aerated, while denser commercial-grade or finer-flake products pack heavier. Both figures describe legitimate products that behave differently on a scoop.", "sources": [ { "name": "King Arthur Baking Company — Ingredient Weight Chart", "ref": "1/2 cup = 1 1/2 oz = 43 g, extrapolating to 86 g/cup. KA lists this ingredient as \"Dried potato flakes (instant mashed potatoes),\" acknowledging the synonym. Sits 25% above the highest retail label (Idahoan at 66 g/cup) and 59% above the lowest (Bob's Red Mill at 54); likely represents a denser commercial-grade reference product rather than standard grocery-shelf consumer flakes.", "density_g_per_ml": 0.3635 }, { "name": "Bob's Red Mill — Potato Flakes (product label)", "ref": "Label serving: 1/3 cup dry = 18 g = 70 kcal. Extrapolates to 54 g/cup. Ingredient statement: dehydrated potatoes (single-ingredient, no emulsifiers or preservatives). Dominant natural-foods home-baker brand. UPC 039978043313.", "density_g_per_ml": 0.2283 }, { "name": "Idahoan Foods — Original Mashed Potatoes (product label)", "ref": "Label serving: 1/3 cup dry mix = 22 g = 80 kcal. Extrapolates to 66 g/cup. Ingredient statement: Idaho potatoes with mono/diglycerides (emulsifier) and sodium acid pyrophosphate/sodium bisulfite/citric acid/mixed tocopherols (color preservatives). Dominant US retail brand (Idaho Pacific).", "density_g_per_ml": 0.279 }, { "name": "USDA FoodData Central — Betty Crocker / Great Value Potato Flakes Instant Mashed Potatoes (branded, UPC 036800515123, via aqua-calc)", "ref": "USDA branded food entry: 60 g/metric cup = 57 g/US cup = 2 oz/US cup. Corresponds to the dominant grocery-store private-label product family (Great Value, Betty Crocker, and equivalents sharing the General Mills manufacturing base).", "density_g_per_ml": 0.241 }, { "name": "Shiloh Farms — Potato Flakes (product label)", "ref": "Label serving: 1/3 cup = 19 g = 70 kcal. Extrapolates to 57 g/cup. Natural-foods brand distributed via specialty grocers. Matches the USDA branded UPC 036800515123 figure at 57 g/cup within rounding, confirming the retail-consensus figure.", "density_g_per_ml": 0.241 } ], "verified": "2026-09-22", "last_reviewed": "2026-09-22" } ], "yields": [], "notes": "TL;DR: 54-86 g/cup (0.23-0.36 g/mL). Retail producer labels cluster tightly at 54-69 g/cup across Bob's Red Mill, Idahoan, USDA branded entries, and Shiloh Farms; King Arthur's Ingredient Weight Chart lists 86 g/cup, about 25-59% above the retail consensus. For any recipe using a specific retail brand, trust the product label rather than the KA figure.\n\nInstant potato flakes — also sold as dried potato flakes, dehydrated potato flakes, or instant mashed potato flakes depending on the brand — are cooked russet potato dried into loose flake form, typically with mono- and diglycerides as emulsifier and sodium acid pyrophosphate as a color preservative (though single-ingredient versions like Bob's Red Mill omit both). Rehydration in hot water plus milk and butter yields the mashed-potato dish the product is marketed for, but bakers use it differently: added dry to yeast dough at 3-5% of flour weight, it acts as a tenderizer and moisture conditioner, giving the soft crumb characteristic of Amish white bread, potato rolls, sandwich loaves, and pretzel dough. The starch in the flakes gelatinizes during the bake and holds water for longer than wheat starch alone, extending shelf life a day or two.\n\nDensity data forms two clear clusters. Retail brand labels converge tightly at the lower end: Bob's Red Mill Potato Flakes at 1/3 cup = 18 g (54 g/cup), Idahoan Original Mashed Potatoes at 1/3 cup = 22 g (66 g/cup), Shiloh Farms at 1/3 cup = 19 g (57 g/cup). USDA branded entries via aqua-calc for the Great Value / Betty Crocker family (UPC 036800515123) give 60 g/metric cup, or 57 g per US cup. Together these five sources span 54 to 66 g/cup with an average around 58. King Arthur's Ingredient Weight Chart sits significantly higher at 1/2 cup = 1 1/2 oz = 43 g, extrapolating to 86 g/cup — about 25% above the highest retail figure and 59% above the lowest.\n\nThe physical spread reflects flake size and packing behavior. Standard consumer instant potato flakes are large, loose, aerated flakes designed to rehydrate quickly; they leave substantial air gaps between flakes when scooped. Some commercial food-service and bakery-supply products are pressed into finer granules or smaller flakes that pack denser, and KA's figure likely represents such a denser reference product rather than a typical grocery-shelf pouch. Both numbers describe legitimate products that behave differently on a scale.\n\nFor bread baking, the practical guidance is: match the density figure to the product in hand. If you use Bob's Red Mill or Idahoan (the two dominant home-baker retail brands), 54-66 g/cup is the honest number, and a recipe calling for \"1 cup potato flakes\" under-delivers flakes by roughly a third if you scoop against KA's 86-g/cup assumption. If you buy from a commercial bakery-supply source or from the KA online store, weigh a test cup once and calibrate. Where potato flakes function as a dough conditioner at 2-5% of flour weight, the effective difference across brands is small enough to absorb without changing the finished bread noticeably; where they're a bulk starch contributor at 15-20% of the dry ingredients (as in some potato-bread formulas), weight-based measurement becomes essential — a 40% density gap in a cup of flakes propagates into a substantially wetter or drier dough than the recipe intended.\n\nWithin the broader database, instant potato flakes follow the same retail-vs-KA density pattern already established by sprouted wheat flour, sweet rice flour, and non-diastatic malt powder: multiple producer labels converge on one figure while KA's chart sits well above them. Weighing beats trusting the volume conversion whenever the specific product form matters." }, { "id": "jasmine-rice", "schema_version": 3, "name": "Jasmine Rice", "synonyms": [ "jasmine rice", "thai jasmine rice", "white jasmine rice", "thai hom mali", "hom mali", "aromatic thai rice", "fragrant thai rice", "khao hom mali" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, dry uncooked, spooned and leveled", "density_g_per_ml": null, "range_min": 0.7608, "range_max": 0.8792, "withheld": true, "withheld_reason": "Two legitimate product-identity clusters exist across the jasmine rice market. American commercial brands (Mahatma, Dynasty, A Taste of Thai) and their USDA Global Branded Food Products Database counterparts converge at 180 g/cup — aged Thai jasmine milled and packaged for mainstream US retail. Asian-market and specialty imported brands (Three Ladies, generic Thai Hom Mali) with their USDA Branded records converge at 200-208 g/cup — fresher, less-aged product from direct Thai or Vietnamese hom mali production. The 15.6% spread exceeds milled 10% tolerance but reflects real differences in aging, moisture content, and milling standards between the two supply chains rather than measurement error. King Arthur Baking's chart figure of 198 for generic long-grain aligns with the Asian-market cluster; USDA Standard Reference for generic long-grain sits at 185 (between the clusters). There is no single defensible figure — the correct answer depends on which brand of jasmine rice is on the shelf.", "sources": [ { "name": "USDA SR Legacy", "ref": "Rice, white, long-grain, regular, raw, unenriched: 1 cup = 185 g. Generic long-grain reference that sits between the two jasmine clusters (2.8% above the American commercial cluster, 7.5% below the Asian-market cluster). Jasmine is an aromatic long-grain subtype; USDA does not publish a jasmine-specific record.", "fdc_id": 169756, "density_g_per_ml": 0.7819 }, { "name": "Mahatma Jasmine Rice", "ref": "Nutrition label: serving size 1/4 cup dry (45 g). Converts to 180 g/cup exactly. Thai-origin, aged and packaged for US commercial retail. Matches basmati and other American commercial rice at 180.", "density_g_per_ml": 0.7608 }, { "name": "Dynasty Jasmine Rice", "ref": "Nutrition label: serving size 1/4 cup dry (45 g). Converts to 180 g/cup exactly. Product of Thailand, distributed under an American commercial brand.", "density_g_per_ml": 0.7608 }, { "name": "A Taste of Thai Jasmine Rice", "ref": "Nutrition label: serving size 1/4 cup uncooked (45 g). Converts to 180 g/cup exactly. Confirms American commercial cluster.", "density_g_per_ml": 0.7608 }, { "name": "USDA Branded (Jasmine Rice)", "ref": "UPC 072036764492 (dry). 190 g/metric cup → 180 g/US cup. Additional confirmation of the American commercial cluster.", "density_g_per_ml": 0.7608 }, { "name": "USDA Branded (White Jasmine Rice)", "ref": "UPC 855772001010. 203 g/metric cup → 192 g/US cup. Sits between the two main clusters; possibly a hybrid supply-chain product.", "density_g_per_ml": 0.8115 }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "\"Rice (long grain, dry)\": 1/2 cup, 3 1/2 oz, 99 g → 198 g/cup. KA does not publish jasmine specifically; its generic long-grain figure at 198 aligns with the Asian-market cluster and is legitimate for that population. Not a correction: King Arthur's figure supports the published one for a subset of brands.", "density_g_per_ml": 0.8368 }, { "name": "Three Ladies Jasmine Rice", "ref": "Nutrition label: serving size 1/4 cup dry (50 g). Converts to 200 g/cup. Vietnamese-origin brand sold in Asian markets; anchor for the higher cluster.", "density_g_per_ml": 0.8453 }, { "name": "USDA Branded (Long Grain Jasmine White Rice)", "ref": "UPC 688267060182. 211 g/metric cup → 200 g/US cup. Confirms Asian-market cluster in USDA Global Branded Food Products Database.", "density_g_per_ml": 0.8453 }, { "name": "USDA Branded (Jasmine Rice)", "ref": "UPC 085968001023. 211 g/metric cup → 200 g/US cup. Additional Asian-market cluster confirmation.", "density_g_per_ml": 0.8453 }, { "name": "Thai Hom Mali Jasmine Rice (generic)", "ref": "Nutrition label: serving size 1/4 cup (52 g). Converts to 208 g/cup — upper end of Asian-market cluster.", "density_g_per_ml": 0.8792 }, { "name": "USDA Branded (Jasmine Rice)", "ref": "UPC 070787454884. 148 g/metric cup → 140 g/US cup. 22% below the American commercial cluster and 30% below the Asian-market cluster.", "density_g_per_ml": 0.5918, "rejected": true, "rejection_reason": "140 g/cup is 22% below the lower American commercial cluster and 30% below the Asian-market cluster. Well outside milled tolerance in both directions. Inconsistent with any recognized jasmine rice product identity — likely a serving-convention error, a cooked-rice figure mislabeled as dry, or a distinct product (possibly instant or parboiled) mislabeled generically as jasmine." } ], "verified": "2026-09-23", "last_reviewed": "2026-09-23" } ], "yields": [], "notes": "TL;DR: Jasmine rice spans a genuine 180-208 gram per cup range dry across major brands, with American commercial brands (Mahatma, Dynasty) at 180 and Asian-market imports (Three Ladies, Thai Hom Mali specialty) at 200-208; the 15.6% spread reflects real supply-chain differences in aging, moisture, and milling rather than measurement error, so check the label on the specific brand.\n\nJasmine rice is an aromatic long-grain variety originating in Thailand (khao hom mali), with 2-acetyl-1-pyrroline as its dominant aroma compound. It cooks fluffy and slightly sticky, with 12-19% amylose content — lower than basmati (20-25%), which produces the softer, moister grain that defines the style. Producer nutrition labels split into two distinct clusters that span a real 180 to 208 gram per cup range, exceeding the 10% tolerance normally applied to milled ingredients.\n\nThe lower cluster at 180 g/cup includes American commercial brands sold in mainstream US retail: Mahatma, Dynasty, and A Taste of Thai all publish 45 g per 1/4 cup dry, giving exactly 180 g/cup. USDA's Global Branded Food Products Database confirms 180 g/cup across multiple UPCs in this cluster. These brands source Thai jasmine but ship through a US commercial supply chain that typically ages the grain 6-12 months and mills for uniform mainstream distribution — the same supply chain that produces the 180 g/cup basmati cluster documented separately.\n\nThe upper cluster at 200-208 g/cup includes Asian-market and specialty imported brands: Three Ladies publishes 50 g per 1/4 cup (200 g/cup) and generic Thai Hom Mali labels run 52 g per 1/4 cup (208 g/cup). USDA Global Branded records confirm this cluster across multiple UPCs (688267060182, 085968001023, and 085968001559 all at 200 g/cup). These brands typically source directly from Thai or Vietnamese hom mali producers with less aging and different milling standards optimized for Asian retail rather than US mainstream.\n\nUSDA Standard Reference for generic raw long-grain white rice (FDC 169756) sits at 185 g/cup — 2.8% above the American cluster and 7.5% below the Asian-market cluster, effectively splitting the difference. King Arthur Baking's chart lists \"Rice (long grain, dry)\" at 198 g/cup, aligning with the Asian-market cluster. Neither figure is a correction target: 185 reflects a generic long-grain population that includes both jasmine styles and other varieties, and 198 reflects KA's choice to use a specification consistent with older or less-aged product.\n\nPhysically, the density gap has several contributors. Fresh, less-aged jasmine typical of Asian-market imports has higher moisture content (~13-14%) than aged American commercial jasmine (~11-12%), which contributes 2-3% of the density difference. Grain-length variation between cultivars also matters: shorter, thicker hom mali strains favored in Asian markets for texture pack denser than the slimmer, more heavily-selected grains used in American commercial supply. Milling degree affects surface polish and grain shape, further shifting how the rice packs when scooped.\n\nFor practical use, treat jasmine as 180 g/cup for American commercial brands (Mahatma, Dynasty, A Taste of Thai) and 200 g/cup for Asian-market brands (Three Ladies, Thai Hom Mali specialty). When precision matters, use the nutrition label on the specific package — that number is correct for that product. Cook jasmine at a 1:1.5 rice-to-water ratio (as producer instructions specify) with an optional rinse to remove surface starch. Cross-brand substitution by cup misses the mark by 10-15 g in either direction, which matters more for nutrition tracking than for cooking texture." }, { "id": "kamut-berries", "schema_version": 3, "name": "Kamut Berries", "synonyms": [ "khorasan wheat berries", "khorasan wheat", "kamut wheat berries", "kamut kernels", "kamut grain", "King Tut wheat", "pharaoh's wheat", "kamut khorasan" ], "category": "milled", "default_state": "standard", "confidence": "high", "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": 0.8624, "sources": [ { "name": "Bob's Red Mill Organic Kamut Berries (dominant US retail brand)", "ref": "Bob's Red Mill Organic Kamut Berries nutrition label lists 1/4 cup = 51 g, extrapolating to 204 g per US cup. Confirmed identical across Bob's Red Mill official product page and multiple retailer listings (ShopRite various locations, iHerb, direct Bob's Red Mill sales). Ingredient: Organic Whole Grain Kamut® Khorasan Wheat, UPC 00039978119414. Bob's is the dominant US retail supplier of kamut berries and serves as the primary density anchor.", "density_g_per_ml": 0.8624 }, { "name": "Wheat berry variety cluster (comparative anchor)", "ref": "Kamut (204 g/cup) sits at the dense end of the whole-grain wheat-berry cluster. Comparative densities: Hard Red Spring Wheat 203 g/cup, Hard Red Winter Wheat 192 g/cup (USDA FDC 168890), Einkorn 185 g/cup, Soft White Wheat 177 g/cup, Spelt 176 g/cup. Kamut and HRS wheat are functionally equivalent in cup-fill density despite kamut's larger kernel size — higher per-kernel protein content compensates for the larger inter-kernel air pockets.", "density_g_per_ml": 0.8624 }, { "name": "Physical density validation (per-kernel composition)", "ref": "Kamut composition: 14.5% protein, 71% carbohydrate (mostly starch), 2% fat, 11% dietary fibre, ~10% water. High protein content and low moisture at maturity produce a per-kernel density comparable to Hard Red Spring wheat despite the visibly larger kernels (approximately 1 cm long vs 0.5-0.7 cm for modern wheat). Kernel volume increases faster than kernel mass with wheat variety, so larger kernels typically pack lighter — kamut is the exception because its protein content offsets the effect.", "density_g_per_ml": 0.8624 }, { "name": "King Arthur Baking (KA-blind on kamut berries)", "ref": "King Arthur does not publish kamut berries in their Ingredient Weight Chart. KA sells kamut flour (which is listed in the ExactCups kamut-flour entry) but does not stock or reference kamut berries. No KA correction applies to this entry." } ], "verified": "2026-09-22", "last_reviewed": "2026-09-22" } ], "yields": [], "notes": "TL;DR: **One US cup of kamut berries weighs 204 g** — Bob's Red Mill's label data (51 g per 1/4 cup) is consistent across every retail confirmation. Density 0.8624 g/mL. Kamut sits at the dense end of the whole-grain wheat-berry cluster, functionally equivalent to Hard Red Spring Wheat at 203 g/cup, despite kernels that are visibly 2-3 times larger than modern wheat. King Arthur does not publish kamut berries in their chart.\n\nKamut® is a trademarked brand name owned by Kamut International Ltd. (Great Falls, Montana), applied to a specific cultivar (QK-77) of ancient khorasan wheat (*Triticum turgidum* ssp. *turanicum*). The Kamut trademark carries strict quality standards — the grain must be certified organic, non-GMO, grown to the QK-77 cultivar specification, and meet minimum protein content of about 12%. This means every product labeled Kamut® is by definition certified organic; generic khorasan wheat (grown outside the Kamut International supply chain) is the same species but sold under other names or as unbranded organic khorasan. The Egyptian pharaoh's-tomb origin story that drives Kamut's marketing — grain kernels supposedly recovered from King Tut's tomb, still viable enough to sprout — is almost certainly apocryphal; the modern QK-77 lineage traces to a 1949 shipment of khorasan wheat from Egypt to Montana wheat farmer Earl Dennis, who preserved and propagated the variety.\n\nThe density data converges cleanly. Bob's Red Mill Organic Kamut Berries — the dominant US retail brand — lists 1/4 cup = 51 g on its nutrition label, extrapolating to exactly 204 g per US cup. This figure appears identically across the Bob's Red Mill official product page and every downstream retailer listing (ShopRite, iHerb, Wegmans, direct Bob's Red Mill sales). USDA FoodData Central does not maintain a dedicated Kamut entry — kamut is a trademark rather than a USDA commodity — so Bob's serves as the primary density anchor, with the wheat-berry variety cluster (USDA FDC 168889 Hard Red Spring at 203 g/cup, FDC 168890 Hard Red Winter at 192 g/cup) providing comparative validation.\n\nThe kernel-size versus density paradox is worth naming plainly. Kamut kernels are visibly 2-3 times larger than modern wheat kernels — about 1 cm long versus 0.5-0.7 cm — which would ordinarily produce a *lighter* cup fill because larger kernels create larger air pockets between them. Instead, kamut lands at 204 g/cup, at the dense end of the wheat-berry cluster and slightly heavier than Hard Red Spring Wheat (203 g/cup) and Hard Red Winter (192 g/cup). The explanation is composition: kamut runs 14-15% protein (versus 12-13% for hard red wheats and 8-10% for soft white wheats), and mature kamut kernels hold about 10-11% water. The high per-kernel protein content and low moisture make each individual kernel dense enough to more than offset the geometric penalty of larger inter-kernel voids.\n\nIn the ExactCups milled category, kamut berries (204 g/cup) sit at the top of the whole-grain wheat cluster and pair naturally with the existing kamut-flour entry (whole-grain kamut milled to flour typically lands at 130-140 g/cup, matching other whole-grain wheat flours). Compared to sibling grains: hulled barley (184 g/cup), pearl barley (200-213 g/cup), and farro/spelt berries (175-185 g/cup) all sit lighter; only Hard Red Spring wheat matches at 203 g/cup. This makes kamut a straightforward volume-to-volume substitute for HRS wheat berries in salads, grain bowls, and pilafs, but a 6% overweight substitute for hulled barley by cup.\n\nA gluten note: kamut contains gluten and is not safe for celiacs. However, kamut's gluten protein profile differs from modern hexaploid wheat (kamut is tetraploid, like durum), and anecdotal reports plus limited peer-reviewed research suggest that people with mild wheat sensitivities — not celiac disease — may tolerate kamut better than modern hard red wheat. This should not be interpreted as a green light for anyone with a formal gluten intolerance diagnosis; it is a plausible but under-studied observation, and the FDA does not permit gluten-tolerance claims on kamut products.\n\nPractical cook recommendation: weigh kamut berries at 204 g per US cup or 51 g per quarter cup. Cooking method requires more attention than modern wheat: soak overnight (or minimum 4 hours) before cooking to reduce cook time and improve texture; simmer in salted water at 1:3 grain-to-water ratio for 40-60 minutes until chewy and slightly popped. Multi-cooker (pressure) at 45 minutes on high with 1:3 ratio works reliably. Yield is approximately 2.5-3 cups cooked per 1 cup dry. Substitute for wheat berries or hulled barley in soups, salads, and pilafs at equal weight; for kamut flour recipes calling for berries to be milled, one cup of berries mills to approximately 1.5 cups of unsifted flour on a home mill's bread setting." }, { "id": "kamut-flour", "schema_version": 3, "name": "Kamut Flour", "synonyms": [ "khorasan wheat flour", "khorasan flour", "KAMUT flour", "Kamut Khorasan flour", "ancient khorasan flour" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Whole-grain kamut, spooned and leveled", "density_g_per_ml": null, "range_min": 0.5072, "range_max": 0.6763, "withheld": true, "withheld_reason": "Genuine unresolved commercial variance across current retail labels and published recipes. Current producer Nutrition Facts panels (Bob's Red Mill, Grain Brain) list 40 g per 1/4 cup (160 g/cup), while King Arthur's own kamut recipe uses 132 g/cup and Kamut International's substitution guidance implies ~137 g/cup. An older 2012 Bob's Red Mill label version listed 30 g per 1/4 cup (120 g/cup). No USDA Foundation Foods entry exists for kamut flour to resolve the discrepancy. Publishing the range until an independent method-controlled composition source is available.", "sources": [ { "name": "Bob's Red Mill Whole Grain Stone Ground Kamut Flour (current label)", "ref": "Current Nutrition Facts panel via myfooddata (UPC 039978113412): 40 g per 1/4 cup serving, extrapolating to 160 g/cup. Represents FDA post-2016 serving-size convention.", "density_g_per_ml": 0.6763 }, { "name": "Grain Brain White Kamut Flour, Organic (current label)", "ref": "Current Nutrition Facts panel via myfooddata: 40 g per 1/4 cup serving, extrapolating to 160 g/cup. Second producer converging on the higher figure.", "density_g_per_ml": 0.6763 }, { "name": "Kamut International substitution guidance", "ref": "Kamut Association's stated substitution ratio: 7/8 cup kamut flour replaces 1 cup wheat flour. At a 120 g/cup modern wheat baseline this implies roughly 137 g/cup for kamut, positioning kamut as moderately denser than modern wheat.", "density_g_per_ml": 0.579 }, { "name": "King Arthur Baking (Golden Kamut Bread recipe)", "ref": "KA does not stock kamut flour and it does not appear on their ingredient weight chart, but their published Golden Kamut Bread recipe lists 1 1/2 cups (198 g) Kamut flour, implying 132 g/cup as their internal recipe-development conversion.", "density_g_per_ml": 0.558 }, { "name": "Bob's Red Mill Organic Whole Grain Kamut Flour (2012 archive label)", "ref": "Historical Nutrition Facts panel via fatsecret archive (last updated 2012): 30 g per 1/4 cup serving, extrapolating to 120 g/cup. Represents pre-FDA-update serving-size convention; product may have been discontinued between then and the current 40 g/cup labeling.", "density_g_per_ml": 0.5072 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "TL;DR: Kamut flour (whole-grain khorasan wheat) shows genuine commercial variance from roughly 120 to 160 grams per cup across current producer labels, older label archives, and published recipes. ExactCups publishes a range rather than a single figure because no independent composition source resolves the discrepancy, and the difference between current Nutrition Facts labels (160 g/cup) and King Arthur's own recipe conversion (132 g/cup) is too wide to average away honestly.\n\nKamut is Kamut International's trademarked variety of khorasan wheat (Triticum turgidum ssp. turanicum), an ancient tetraploid wheat cultivated commercially since Bob Quinn's Montana farming operation formalized the brand in 1990. Unlike einkorn, which has one dominant US brand and tight producer convergence, kamut flour is produced under license by multiple mills — Food to Live, Grain Place Foods, Grain Brain, and Modern Mountain Baking are all current retail sources — with Bob's Red Mill previously selling their own version that appears to have been discontinued for the flour while retained for the berries. The dispersion of producers means label data varies more than for single-brand ingredients.\n\nKing Arthur Baking, which does not stock kamut flour on its ingredient weight chart, uses a 132 g/cup conversion in its published Golden Kamut Bread recipe (198 g in 1.5 cups). Kamut International's own substitution guidance — that 7/8 cup of kamut flour replaces 1 cup of wheat flour — implies roughly 137 g/cup at a modern wheat baseline of 120 g/cup. Current producer Nutrition Facts panels (Bob's Red Mill Whole Grain Stone Ground Kamut Flour, Grain Brain White Kamut Flour, both listing 40 g per 1/4 cup) sit substantially higher at 160 g/cup. An older 2012 Bob's Red Mill label version listed 30 g per 1/4 cup (120 g/cup); the shift from 30 g to 40 g may reflect FDA-driven updates to Nutrition Facts serving-size accuracy rather than a physical change in the product.\n\nThe physical reasoning behind kamut's higher density is straightforward: kamut kernels are roughly two to three times the size of modern wheat kernels with a hard, tightly packed endosperm, and stone-milling into whole-grain flour preserves more of that density than modern roller-milling of soft wheats. For comparison, Bob's Red Mill's modern whole wheat flour lists 152 g/cup on their official chart — kamut at 160 g/cup is a modest premium consistent with its heavier grain. But density this high is unusually sensitive to packing method: a lightly spooned cup of kamut flour can measure well below the label figure, while a scooped-and-packed cup can exceed it substantially. The 33% spread across sources here reflects both real physical variance and inconsistency in how producers derive their Nutrition Facts serving-size figures.\n\nUSDA Foundation Foods has no entry for kamut flour specifically. The only USDA composition data covers the whole grain berry (Wheat, KAMUT khorasan, uncooked and cooked), both from Standard Reference Legacy rather than the newer Foundation Foods program. Without an independent, method-controlled composition study for the flour, no single figure can be established as authoritative.\n\nPractical baker recommendation: this is one of the rare cases where the label on your specific bag matters more than any published conversion. If you own Bob's Red Mill kamut flour, use 40 g per quarter cup (160 g per cup) as their current label states. If you're following a King Arthur recipe with cup-based measurements, honor their internal 132 g/cup convention. If you're substituting kamut for modern wheat in an existing recipe, Kamut International's 7/8-cup ratio (roughly 137 g/cup at a 120 g modern wheat baseline) is the closest thing to authoritative producer guidance. Weighing rather than measuring by volume matters more here than for standard flour because both the packing sensitivity and inter-label variance are unusually large." }, { "id": "macadamia-nuts", "schema_version": 3, "name": "Macadamia nuts", "synonyms": [ "whole macadamia nuts", "macadamia kernels", "raw macadamia nuts", "macadamias" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, whole kernels loose in the cup", "density_g_per_ml": null, "range_min": 0.5664, "range_max": 0.6298, "withheld": true, "withheld_reason": "Two sources disagree by 11.19%, over the 10% milled tolerance. USDA's notation 'whole or halves' suggests a mixed kernel state, since macadamia kernels naturally split at their cleavage axis when shelled, while King Arthur specifies 'whole' only. Half-domes pack denser than intact spheres because their flat cleavage face allows flat-to-flat contact, which likely accounts for the gap. This entry publishes the range rather than picking one figure.", "sources": [ { "name": "USDA FoodData Central", "ref": "Nuts, macadamia nuts, raw (SR Legacy). Published: 1 cup, whole or halves = 134 g. Density 0.5664 g/mL. Confirmed by proportional consistency across 0.5, 1, 1.5 and 2 cup portions.", "density_g_per_ml": 0.5664 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Macadamia nuts (whole)', 1 cup = 149 g. Density 0.6298 g/mL.", "density_g_per_ml": 0.6298 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Two sources 11.19% apart, over the 10% milled tolerance, so this entry publishes the range rather than a single figure. USDA FoodData Central publishes Nuts, macadamia nuts, raw (SR Legacy) at 1 cup, whole or halves = 134 g, implying a density of 0.5664 g/mL. King Arthur's Ingredient Weight Chart lists 'Macadamia nuts (whole)' at 1 cup = 149 g, implying 0.6298 g/mL. The USDA cup portion is confirmed by proportional consistency across 0.5, 1, 1.5 and 2 cup entries, all dividing to the same 134 g/cup figure.\n\nThe likely reason for the disagreement is a difference in what was actually measured. USDA's own notation is 'whole or halves' — macadamia kernels naturally split at their internal cleavage axis when shelled, so a cup of 'whole or halves' contains a mix of intact spheres and split half-domes. Half-domes pack much denser than intact spheres because their flat cleavage face allows flat-to-flat contact, the same effect that puts peanuts at 146 g per cup despite individual kernels being roughly comparable in intrinsic density. If USDA's sample skewed toward whole intact kernels and King Arthur's toward halves and broken pieces, an 11 to 15 percent cup-mass gap is exactly what would appear. Neither source documents its filling method, so this remains a hypothesis rather than a confirmed cause.\n\nMacadamia is also unusually variable across cultivars. Hawaiian Beaumont, Australian Own Choice and South African A38 differ measurably in kernel diameter, and the industry does not standardize which cultivars appear in generic 'macadamia nuts' reporting. Fat content is exceptionally high at approximately 76 percent by weight, the highest of any commonly-consumed tree nut, so intrinsic kernel density is elevated relative to nuts like walnuts or pecans that carry more water and starch.\n\nRelated products: chopped, halved and pre-broken macadamia pieces would each pack denser than whole intact kernels and would earn separate entries when a second authoritative source becomes available. King Arthur does not list chopped or ground macadamia variants. Macadamia flour, sometimes marketed as 'macadamia meal,' is a distinct product with density set by grind fineness rather than kernel geometry, and has no King Arthur reference for comparison. Macadamia butter, like other nut butters, sits in the fat category rather than milled.\n\nMacadamia kernels are placed in the milled category alongside other whole and chopped nuts. The category rule tracks physical packing behavior rather than milling: whole kernels pack by scoop with air gaps in the same way that whole grains and seeds do. The 10 percent category tolerance applies here, and the 11.19 percent observed gap is a genuine physical disagreement rather than an arithmetic error in either source.\n\nNo standards body publishes a bulk density for macadamia or other tree nuts. Codex Alimentarius has a standard for macadamia kernels covering moisture content, defect tolerances and grade classification but not physical density. Two authoritative sources with an over-tolerance gap and no method documentation to arbitrate, so this entry is held at low confidence and range-published until a third independent source or a documented fill method resolves whether both figures reflect real but different kernel-state fills.", "last_reviewed": "2026-09-21" }, { "id": "malted-milk-powder", "schema_version": 3, "name": "Malted Milk Powder", "synonyms": [ "malted milk powder", "malted milk", "malt powder", "malt drink mix", "malted milk mix", "malted drink powder" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": null, "range_min": 0.4734, "range_max": 0.7777, "withheld": true, "withheld_reason": "Three product families are all commercially labeled as \"malted milk powder\" with substantially different densities: retail beverage mixes with added sugar (Nestlé Carnation ~112 g/cup), pure baking-focused formulations without added sugar (King Arthur ~140 g/cup), and concentrated soda-fountain blends with cane sugar as a primary ingredient (CTL Foods ~184 g/cup). No single figure captures the family, and product labels rarely make the distinction clear.", "sources": [ { "name": "King Arthur Baking Company — Ingredient Weight Chart", "ref": "1/4 cup = 1 1/4 oz = 35 g, extrapolating to 140 g/cup. Chart figure for the KA product, which is pure malted milk powder (barley malt, wheat, milk, salt) without added sugar.", "density_g_per_ml": 0.5918 }, { "name": "King Arthur Baking Company — nostalgic sweetness blog (2022)", "ref": "Malted milkshake recipe published on the KA blog specifies 2 tablespoons (18 g) of malted milk powder, extrapolating to 144 g/cup. Internally consistent with the chart figure of 140 g/cup within 3%, likely a level-tablespoon rounding difference.", "density_g_per_ml": 0.6087 }, { "name": "Nestlé Carnation Original Malted Milk (retail product label)", "ref": "Product label serving: 3 tablespoons = 21 g = 90 kcal. Extrapolates to 112 g/cup. Ingredients: wheat flour and malted barley extracts, milk, soy lecithin, salt, sodium bicarbonate — plus 12 g of added sugar per 21 g serving. Dominant US retail brand for the beverage-mix family.", "density_g_per_ml": 0.4733 }, { "name": "USDA FoodData Central — Soda Fountain Malted Milk Powder (branded, UPC 652134516003, CTL Foods)", "ref": "USDA branded food entry: 194 g/metric cup = 184 g/US cup = 6.5 oz/US cup. CTL Foods product label serving: 2 tablespoons = 23 g, consistent with 184 g/cup. Ingredients: extract of malted barley and wheat, sucrose (added as second ingredient), milk, salt, baking soda. Represents the soda-fountain formulation family.", "density_g_per_ml": 0.7777 }, { "name": "USDA FoodData Central — Beverages, Ovaltine, Classic Malt powder (FDC 174864)", "ref": "USDA generic entry: 1 envelope = 4 tbsp = 21 g. Extrapolates to 84 g/cup, well below the range boundary. Ovaltine is typically labeled and shelved as a drink mix rather than a baking ingredient; noted for completeness rather than included in the published range.", "density_g_per_ml": 0.355 } ], "verified": "2026-09-22", "last_reviewed": "2026-09-22" } ], "yields": [], "notes": "TL;DR: 112-184 g/cup across the three product families sold as \"malted milk powder\" — retail beverage mixes (Nestlé Carnation ~112), pure baking powders (King Arthur ~140), and concentrated soda-fountain blends (CTL Foods ~184). No single figure works across the category; check the label serving size on the product in hand.\n\nMalted milk powder is a family of products, not a single ingredient. The base recipe is straightforward — extract of malted barley (or barley plus wheat malt), evaporated milk solids, salt, and often sodium bicarbonate for pH balance — but manufacturers formulate for very different end uses, and the density on your kitchen scale depends heavily on which product you bought. All three families are legitimately labeled \"malted milk powder\" and all three go into malted milkshakes, cookies, and bagels, but they weigh in significantly differently per cup.\n\nThe retail beverage-mix family, dominated by Nestlé Carnation Original Malted Milk, is the highest-volume US product and the one most home kitchens have in the pantry. Its label reads 3 tablespoons = 21 g, extrapolating to 112 g/cup or 0.47 g/mL. Ingredients include added sugar (12 g per 21 g serving) alongside the malt and milk solids, which contributes to a lighter bulk density than the pure baking formulations. Ovaltine's Classic Malt sits in the same family but lighter still at roughly 84 g/cup, though Ovaltine is typically labeled and shelved as a chocolate malt drink mix rather than a baking ingredient.\n\nThe baking-focused family, exemplified by King Arthur's Malted Milk Powder (product #206176), skips the added sugar and delivers a more concentrated malt-to-milk ratio. King Arthur's Ingredient Weight Chart lists 1/4 cup = 35 g, extrapolating to 140 g/cup, and King Arthur's 2022 malted-milkshake blog post specifies 2 tbsp = 18 g, extrapolating to 144 g/cup — internally consistent within 3%. Niblack Foods and similar bakery-supply brands cluster in the same 140-150 g/cup range. This is the density most professional baking recipes assume when they call for malted milk powder.\n\nThe soda-fountain family, represented by CTL Foods' Soda Fountain Malted Milk Powder (USDA branded entry UPC 652134516003), is the densest formulation. Its label reads 2 tbsp = 23 g, extrapolating to 184 g/cup or 0.78 g/mL. The ingredient list adds cane sugar (sucrose) as the second-largest component after malt extracts, and the finished powder is finer and heavier-packing than either the retail beverage mixes or the pure baking products. It's the product used in old-fashioned soda fountain malts and is not usually found on grocery shelves.\n\nPhysically, the spread comes from three factors: added-sugar content varies from zero (King Arthur) to over half by weight (Ovaltine), which lightens or densifies the powder depending on sugar particle size and how the crystals pack against the milk-and-malt matrix; the milk-solids-to-malt ratio shifts the fat and protein content and therefore the bulk density; and the manufacturing method — spray-drying the malt-milk slurry versus dry-blending pre-dried components — changes particle shape and packing behavior.\n\nFor a recipe outcome, using Carnation where a King Arthur-based recipe was written under-delivers malt flavor by roughly 20% by weight per cup; using CTL Foods over-delivers by roughly 30%. The King Arthur figure is the working assumption for most contemporary US baking references, so recipes that specify malted milk powder without brand guidance are safest interpreted at 140 g/cup with an explicit note that the retail Carnation product weighs less. For any recipe where precision matters, weigh the specific product you have rather than trusting a volume conversion. Within the broader malt family, malted milk powder sits between non-diastatic malt powder (128-162 g/cup range, no milk solids) and dry milk powder (40-148 g/cup range depending on state, no malt) — it's a compound product that inherits variance from both parents." }, { "id": "masa-harina", "name": "Masa harina", "aliases": [ "corn masa flour", "instant corn masa flour", "nixtamalized corn flour", "harina de maíz nixtamalizado" ], "category": "milled", "schema_version": 3, "confidence": "low", "default_state": "standard", "states": [ { "id": "standard", "label": "Standard", "density_g_per_ml": null, "range_min": 0.3931, "range_max": 0.4818, "withheld": true, "withheld_reason": "USDA-derived and KA figures disagree by 20% (KA 0.3931 g/mL vs USDA-derived 0.4818 g/mL), well over the 10% milled category tolerance. Masa harina has significant packing variability due to its very fine grind and the way the nixtamalization process affects particle shape. Published as a range.", "verified": "2026-09-17", "last_reviewed": "2026-09-17", "sources": [ { "name": "USDA FoodData Central", "ref": "Corn flour, masa, unenriched (SR Legacy). Published: 1 cup ≈ 114 g. Density 0.4818 g/mL. Composition: ~9% water, ~76% carbohydrate (of which ~9% fibre), ~9% protein, ~4% fat. USDA figure aligns with the manufacturer specs from Maseca (the dominant US brand) and Masienda, both at 114-116 g per cup.", "density_g_per_ml": 0.4818 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Masa Harina', 1 cup = 93 g, density 0.3931 g/mL. Notably lighter than USDA and manufacturer specs; may reflect a spooned-and-levelled rather than scooped measurement.", "density_g_per_ml": 0.3931 } ] } ], "yields": [], "notes": "Masa harina is dried, ground nixtamalized corn — the essential flour of Mexican and Central American cooking, used to make corn tortillas, tamales, pupusas, huaraches, gorditas, and atole. The Spanish name translates literally as 'dough flour', and that describes its purpose exactly: mixed with water, it reconstitutes into masa, the corn dough that predates the arrival of wheat flour in the Americas by several thousand years.\n\nUSDA FoodData Central lists corn flour, masa, unenriched at approximately 114 grams per cup, giving a density of 0.4818 grams per millilitre. King Arthur's ingredient weight chart publishes 1 cup at 93 grams and 0.3931 grams per millilitre. The two figures are 20 percent apart, well outside the 10 percent tolerance we apply to the milled category, so we publish the range 93 to 114 grams per cup rather than a single figure. The manufacturer specifications from Maseca (the dominant US brand) and Masienda both list approximately 114 to 116 grams per cup, aligning with USDA and suggesting the KA figure is either a lighter measurement method or an under-measurement.\n\nNixtamalization is the process that distinguishes masa harina from regular cornmeal or corn flour. Dried corn kernels are soaked and cooked in an alkaline solution (traditionally slaked lime, calcium hydroxide dissolved in water) which loosens the outer skin, softens the kernels, and chemically transforms the corn in several important ways. The niacin in corn becomes bioavailable (untreated corn causes pellagra when it forms most of a diet, as European colonists in the Americas learned the hard way); the calcium content increases dramatically (about 20 times more calcium than regular cornmeal); the amino acid profile becomes more complete; and the starch structure changes so that the resulting dough is pliable and holds together in tortilla form — a texture regular corn flour cannot produce.\n\nThe distinction from cornmeal is critical for anyone substituting between them. Regular cornmeal (also in this dataset) is coarsely ground plain dried corn. Corn flour is finely ground plain dried corn. Neither is nixtamalized, and neither will produce a workable tortilla. Substituting cornmeal for masa harina yields a crumbly, non-pliable mixture that falls apart when shaped. The reverse substitution — masa harina in a cornbread recipe — produces a strange, alkaline-tasting result that lacks the sweetness of untreated corn.\n\nMasa harina and masa are related but not identical. Masa is the wet nixtamalized corn dough, either freshly made in a tortilleria or reconstituted from masa harina at home. Masa harina is the dried, powdered form for storage and shipment. USDA lists masa (cooked) as a separate entry (FDC 785450 for Masa Harina Cooked, which is misleadingly named — it refers to the reconstituted dough). This entry describes the dry powder.\n\nRelated products this entry does not cover: corn flour (finely ground non-nixtamalized corn, sometimes marketed as 'corn masa flour' outside Latin American markets, which causes confusion); hominy (whole nixtamalized corn kernels, sold canned or dried, used in pozole); grits (coarsely ground white corn); and blue masa harina (from nixtamalized blue corn, used for blue-corn tortillas, similar density to yellow masa harina).\n\nFDA does not have an identity standard specific to masa harina. Codex Alimentarius standard CXS 154-1985 covers degermed maize meal but not nixtamalized corn products. Neither publishes a bulk density.\n\nThe category here is 'milled' because masa harina behaves like other fine milled powders in a measuring cup — it clumps, bridges, and its density depends significantly on scoop method. The 10 percent tolerance applies, and the two source figures are outside it, hence the range publication.", "last_reviewed": "2026-09-17" }, { "id": "matcha-powder", "schema_version": 3, "name": "Matcha Powder", "synonyms": [ "matcha", "matcha green tea powder", "green tea powder", "ceremonial matcha", "ceremonial grade matcha", "culinary matcha", "culinary grade matcha", "japanese matcha" ], "category": "milled", "default_state": "standard", "confidence": "high", "states": [ { "id": "standard", "label": "Standard, sifted", "density_g_per_ml": 0.4058, "range_min": null, "range_max": null, "sources": [ { "name": "King Arthur Ingredient Weight Chart (Matcha powder)", "ref": "2 tablespoons = 3/8 oz = 12g, so 96 g/cup, density 0.406 g/mL.", "density_g_per_ml": 0.4058 }, { "name": "Rishi Tea Organic Ceremonial Matcha nutrition label", "ref": "1 teaspoon (2g) per label. 2g x 48 tsp/cup = 96 g/cup. Rishi is a well-regarded ceremonial matcha producer.", "density_g_per_ml": 0.4058 }, { "name": "Tenzo Matcha Green Tea Powder nutrition label", "ref": "1/2 teaspoon (1g) per label, equivalent to 2g/tsp. 96 g/cup.", "density_g_per_ml": 0.4058 }, { "name": "MRM Matcha Green Tea Powder nutrition label", "ref": "2 teaspoons (4g) per label, equivalent to 2g/tsp. 96 g/cup.", "density_g_per_ml": 0.4058 }, { "name": "Naoki Superior Blend Ceremonial Matcha nutrition label", "ref": "1 teaspoon (2g) per label. 96 g/cup. Fifth independent brand confirmation.", "density_g_per_ml": 0.4058 }, { "name": "ChefSolver density reference", "ref": "Physical density of matcha powder measured at 0.40 g/mL, giving 95 g/cup. Confirms label figures via independent density measurement.", "density_g_per_ml": 0.4 } ], "verified": "2026-09-22", "last_reviewed": "2026-09-22" } ], "yields": [], "notes": "TL;DR: Matcha powder converges tightly at 96 g/cup (2g per teaspoon) across King Arthur's chart and every major producer label (Rishi Tea, Tenzo, MRM, Naoki). The ceremonial-versus-culinary grade distinction affects flavor and price dramatically but has essentially no effect on density.\n\nMatcha is stone-ground whole green tea leaves — specifically the tencha varietal, shade-grown for the final weeks before harvest to boost chlorophyll and L-theanine. Unlike brewed tea where leaves are steeped and discarded, matcha delivers the entire leaf as a fine bright-green powder, whisked directly into hot water or milk. Bakers use it for matcha lattes, ice cream, mochi, cakes, cookies, panna cotta, macarons, and Japanese wagashi. Typical baking doses run 1-3 tablespoons (6-18g) per recipe.\n\nDensity is unusually consistent across brands and grades. King Arthur's Ingredient Weight Chart lists matcha at 2 tablespoons = 12g, giving 96 g/cup at density 0.406 g/mL. Rishi Tea's ceremonial-grade label lists 1 teaspoon = 2g. Tenzo Matcha lists 1/2 teaspoon = 1g. MRM Matcha lists 2 teaspoons = 4g. Naoki Superior Blend Ceremonial lists 1 teaspoon = 2g. Every source works out to essentially the same 96 g/cup (48 tsp x 2g). ChefSolver's independent density measurement of 0.40 g/mL confirms the same figure. Six sources within 1% of each other — one of the tighter convergence entries in the milled category.\n\nCeremonial vs culinary grade — same density, different everything else. Ceremonial grade is made from first-flush (spring harvest) tencha leaves, stone-ground slowly to preserve delicate flavor. It has a vibrant jade-green color, smooth umami flavor without bitterness, and retails at $30-100+ per 30g tin. Reserved for traditional whisked tea (usucha or koicha), its subtle flavor gets lost in sugar, milk, and heat when used in baking. Culinary grade is made from later-harvest leaves, ground more coarsely, often blended for consistency. It has more olive or yellow-green color, stronger bitter and grassy flavor, and retails at $10-30 per 100g. Designed for baking, lattes, and mixed drinks where the stronger flavor holds up to added sugar and heat. This is what most bakers should buy. Both grades weigh essentially the same per teaspoon (2g), so density is not the differentiator — the distinction is flavor intensity and heat tolerance.\n\nSifting matters more than grade for measurement accuracy. Matcha clumps aggressively due to its ultra-fine particle size (5-10 microns) and static charge. Unsifted matcha packed into a cup can weigh 20-35% more than sifted matcha (up to 120-130 g/cup) because clumps compress under gravity while trapped air escapes. Every serious matcha reference recommends sifting through a fine mesh sieve before measuring or whisking. For baking recipes tested by weight, sifting matters less; for volume-measured recipes, unsifted matcha will overdose bitter flavor.\n\nStorage and shelf life: matcha oxidizes and degrades quickly once opened. Fresh matcha is vibrant jade-green; dulled olive or yellow-green matcha has degraded and lost antioxidants, color, and flavor. Store in an airtight opaque container in the refrigerator or freezer. Use within 2-3 months of opening for peak flavor; sealed unopened matcha lasts 1-2 years. Culinary grade degrades more slowly than ceremonial due to its coarser grind and lower initial delicacy.\n\nNot interchangeable with matcha-flavored powder blends: many commercial matcha lattes (Starbucks, mixed drink mixes, some bagged products) contain matcha blended with sugar, milk powder, and other ingredients. These are not pure matcha and will not match the 96 g/cup density of pure matcha powder. Read labels carefully — pure matcha lists only green tea or matcha (or with organic certification, organic green tea), while blends list multiple ingredients and are typically much denser due to added sugar solids.\n\nPractical baker recommendation: buy culinary-grade matcha for baking and lattes; save ceremonial grade for traditional whisked tea. Sift before measuring for volume accuracy, or weigh for precision. Typical baking dose is 6-12g (1-2 tablespoons) per standard recipe. Store cold and opaque to preserve color and flavor." }, { "id": "meringue-powder", "schema_version": 3, "name": "Meringue powder", "synonyms": [ "Wilton meringue powder", "instant meringue powder", "royal icing meringue powder", "meringue mix" ], "category": "milled", "default_state": "standard", "confidence": "low", "working_figure": { "grams": 144, "basis": "for Wilton meringue powder; King Arthur's own runs 172 g" }, "states": [ { "id": "standard", "label": "Standard, powder spooned and leveled", "density_g_per_ml": null, "range_min": 0.5706, "range_max": 0.727, "withheld": true, "withheld_reason": "Genie's Dream 135 g, Wilton 144 g, Satin Ice 164 g and King Arthur 172 g per cup span 27%, beyond the 10% tolerance for powders. The brands are different recipes, some led by corn starch and some by sugar, so the range is published rather than one figure.", "sources": [ { "name": "Wilton Meringue Powder (producer label)", "ref": "Retail label (Kroger): serving size 2 tsp dry powder (6 g), 19 servings per 4 oz tub (113.4 g / 19 = 5.97 g, consistent), 144 g per cup (density 0.609 g/mL). Ingredients: corn starch, egg whites, sugar, gum arabic, calcium sulphate, citric acid, cream of tartar, artificial flavor, silicon dioxide. Directions: 2 tsp meringue powder + 2 tbsp water = 1 egg white.", "density_g_per_ml": 0.6087 }, { "name": "Genie's Dream Meringue Powder (producer label)", "ref": "Label serving 1/3 cup (45 g), as transcribed by ReciPal, 135 g per cup (density 0.571 g/mL). Ingredients: modified food starch, dried egg whites, sugar, gum arabic, sodium aluminosilicate, citric acid, potassium acid tartrate, vanillin.", "density_g_per_ml": 0.5706 }, { "name": "Satin Ice Meringue Powder (mixing directions)", "ref": "Directions as printed by retailer Candyland Crafts: \"3 Tbsp. (31 grams) Meringue Powder\" (165 g per cup) and \"4 Tbsp (41 g) Meringue Powder\" (164 g per cup, density 0.693 g/mL). The same directions give granulated sugar at 185 g per cup, a light way of filling the cup.", "density_g_per_ml": 0.6932 }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "KA lists \"Meringue powder\" at 1/4 cup = 1 1/2 oz = 43 g, 172 g per cup (density 0.727 g/mL); King Arthur's Royal Icing recipe uses the same \"1/4 cup (43g) meringue powder\". King Arthur's shop directions use 1 tablespoon of powder with 5 teaspoons of water per egg white.", "density_g_per_ml": 0.727 }, { "name": "CooksInfo, Meringue Powder", "ref": "\"3 tablespoons Meringue Powder = 1 oz / 30g\", 160 g per cup. A rounded conversion with no brand named, kept without a figure." }, { "name": "Judee's Meringue Powder Mix (producer label)", "ref": "Label serving 1.5 tbsp dry mix (22 g), as transcribed by ReciPal, which would be 235 g per cup, heavier than granulated sugar (200 g). A blend of fine sugar, starch and egg white powder cannot pack denser than sugar crystals, so it is kept without a figure." } ], "verified": "2026-10-29", "last_reviewed": "2026-10-29" } ], "yields": [], "notes": "A cup of meringue powder weighs 135 to 172 g (4.8 to 6.1 oz), depending on the brand's recipe. Wilton's label gives 6 g per 2 teaspoons (144 g per cup), Satin Ice's directions 41 g per 4 tablespoons (164 g) and King Arthur 43 g per quarter cup (172 g). Use the figure for the brand you have, and weigh when a recipe gives grams.\n\nMeringue powder is a dry mix for royal icing, meringues and stabilized buttercream: dried egg white blended with starch or sugar, an acid such as cream of tartar or citric acid, and gums that help the foam hold. It is not the same as dried egg white, which is pure albumen; meringue powder is only part egg white, so more of it is needed for each egg white it replaces. Wilton's directions use 2 teaspoons of powder with 2 tablespoons of water for one egg white; King Arthur's use 1 tablespoon with 5 teaspoons of water.\n\nThe brands are different recipes, and that is why their figures differ by 27%, beyond the 10% this site allows for powders. Wilton lists corn starch first, then egg whites and sugar. Genie's Dream, at 45 g per third of a cup (135 g per cup) as transcribed by ReciPal, lists modified food starch first. These two starch-led blends are the lightest. Satin Ice's mixing directions weigh 3 tablespoons at 31 g and 4 tablespoons at 41 g, 164 to 165 g per cup. King Arthur's chart and its royal icing recipe both give 1/4 cup as 43 g, 172 g per cup; it sits at the top of the range and is accepted.\n\nWilton's figure is the best documented. Its label states 2 teaspoons as 6 g, and the 4 oz tub holds 19 servings of 5.97 g each, so the label weight and the tub agree. None of these labels uses the 28 g per quarter cup convention that decides many powder labels.\n\nTwo figures are kept without a number. CooksInfo gives 3 tablespoons as 1 oz or 30 g, 160 g per cup, a rounded conversion with no brand named. Judee's meringue powder mix gives 1.5 tablespoons as 22 g, as transcribed by ReciPal, 235 g per cup: heavier than granulated sugar, which a fine blend of sugar, starch and egg white powder cannot be.\n\nThe physical check: on this site, cornstarch weighs 112 to 128 g per cup, dried egg white 80 to 107 g and granulated sugar 200 g. A blend led by starch should land near the starch figures and a sugar-led blend nearer sugar. Wilton and Genie's Dream, at 135 to 144 g, sit just above starch; the heavier blends, at 164 to 172 g, sit between starch and sugar. Every meringue powder is heavier than dried egg white alone.\n\nPractical guidance: read the brand. For Wilton use 6 g per 2 teaspoons, 9 g per tablespoon and 144 g per cup; for King Arthur use 43 g per quarter cup. A royal icing batch made with 3 to 4 tablespoons of powder uses 27 to 43 g depending on the brand, so with a scale, follow the recipe's own grams and the brand stops mattering." }, { "id": "millet", "schema_version": 3, "name": "Millet", "synonyms": [ "millet grain", "whole millet", "raw millet", "hulled millet", "pearl millet", "proso millet" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, dry whole grain scooped into the cup", "density_g_per_ml": 0.8454, "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 169702, Millet, raw (SR Legacy). Published: 1 cup = 756 kcal, 100 g = 378 kcal. Back-calculating: cup weight = (756/378) × 100 = 200 g. Density 0.8454 g/mL.", "density_g_per_ml": 0.8454 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Millet (whole)', 1/2 cup = 103 g, extrapolated to 206 g per cup. Density 0.8707 g/mL.", "density_g_per_ml": 0.8707 } ], "verified": "2026-09-20", "last_reviewed": "2026-09-20" } ], "yields": [], "notes": "Two authoritative sources agree within tolerance. USDA FoodData Central SR Legacy (FDC 169702, Millet, raw) publishes a cup at 756 kcal and 100 g at 378 kcal, back-calculating to a cup weight of 200 g and density of 0.8454 g/mL. King Arthur's Ingredient Weight Chart lists Millet (whole) at 103 g per half cup, extrapolating to 206 g per cup and 0.8707 g/mL. The gap between the two figures is 3.0%, well inside the 10% milled tolerance, so this entry publishes USDA's figure of 200 g per cup and names both sources.\n\nMillet's cup density of 0.8454 g/mL is unusually high for the milled category, comparable to the densities this site publishes for continuous liquids like olive oil (0.9134 g/mL). The physical mechanism is different: olive oil achieves that density as a homogeneous fluid, while millet achieves it through very tight packing of small, hard, roughly spherical kernels. Whole millet grains are approximately 2 mm across and highly regular in shape, allowing them to interlock with minimal air space when scooped. This is why sources agree closely for whole millet where they diverge for irregularly-shaped nuts and flakes: there is less physical room for measurement noise.\n\nMillet sits in the milled category alongside other whole grains including white rice, quinoa, rolled oats and whole nuts. The category rule assigns anything that packs by scoop with air gaps to milled, and while millet packs unusually tightly for the category, it still behaves as a granular solid rather than a self-levelling liquid. The 10% category tolerance applies here, and the observed 3% agreement between sources is comfortably inside it.\n\nMillet is one of the oldest cultivated grains, dating to at least 8000 BCE in East Asia and Africa. Today India produces the majority of the global crop, followed by Nigeria, Niger and China. In American home kitchens, millet appears most often as a gluten-free pilaf substitute for rice or bulgur, as a porridge (similar to how oatmeal is prepared), or as a whole grain addition to bread doughs for texture. Toasting the dry grain in a dry pan for a few minutes before adding water deepens its subtly sweet, corn-like flavor.\n\nSeveral millet varieties are commercially available under the general name 'millet', with the most common being pearl millet (Pennisetum glaucum), proso millet (Panicum miliaceum), foxtail millet (Setaria italica) and finger millet (Eleusine coracana). The density differences between varieties are small compared to the source-level disagreement in this entry, and both USDA and King Arthur measure without specifying variety, so this entry treats them together. Regional cuisines that use one specific variety exclusively (Indian bajra, Ethiopian tef which is a related but distinct grain) may see minor density differences from the figure published here.\n\nMillet flour is a separate product not covered by this entry. King Arthur's chart has no row for millet flour, and no clean two-source pairing was available for it at this entry's review date. When sourcing improves, a separate millet-flour entry will publish.\n\nWhole millet is not the same as tef, which is a smaller East African grain from a different genus; not the same as sorghum, which is a larger grain from a related genus; and not the same as birdseed millet mixes, which combine multiple grain types and are not intended for human consumption.\n\nNo standards body publishes a bulk density for millet. Codex Alimentarius standards for pearl millet grains (CXS 169-1989) cover moisture content, defect tolerances, foreign matter and grade rather than physical density. Two authoritative sources agreeing within tolerance, so this entry is held at medium confidence. A third independent source matching within tolerance, particularly a standards body figure or a professional culinary reference specifying variety, would move it to high confidence.", "last_reviewed": "2026-09-20" }, { "id": "mini-marshmallows", "schema_version": 3, "name": "Mini Marshmallows", "synonyms": [ "miniature marshmallows", "marshmallows mini", "small marshmallows", "Jet-Puffed mini marshmallows", "baking marshmallows" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, poured and leveled", "density_g_per_ml": null, "range_min": 0.1818, "range_max": 0.2113, "withheld": true, "withheld_reason": "Sources span 43-50 g per cup, a 16% gap, over the 10% tolerance. USDA lists a cup of miniature marshmallows at 50 g; the Jet-Puffed, Campfire and Kroger labels give 2/3 cup at 30 g, 45 g per cup; King Arthur gives 43 g. No single figure is published.", "sources": [ { "name": "USDA SR Legacy \"Candies, marshmallows\" (FDC 167995)", "ref": "USDA Standard Release publishes 1 cup of miniature = 50 g (density 0.211 g/mL), 10 miniatures = 7 g and 1 regular marshmallow = 7.2 g. Water 16.4 g, carbohydrate 81.3 g (sugars 57.6 g), protein 1.8 g per 100 g.", "fdc_id": 167995, "density_g_per_ml": 0.2113 }, { "name": "Kraft Jet-Puffed Mini Marshmallows (producer label)", "ref": "Retail nutrition label (Kroger), 16-oz bag: 2/3 cup (30 g), extrapolating to 45 g per cup (density 0.190 g/mL).", "density_g_per_ml": 0.1902 }, { "name": "Campfire Miniature White Marshmallows (producer label)", "ref": "Producer specification sheet: 2/3 cup (30 g), extrapolating to 45 g per cup.", "density_g_per_ml": 0.1902 }, { "name": "Kroger Mini Marshmallows (producer label)", "ref": "Retail nutrition label (Ralphs), 10-oz bag: 2/3 Cup (30 g), extrapolating to 45 g per cup.", "density_g_per_ml": 0.1902 }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "KA lists \"Marshmallows (mini)\" at 1 cup = 1 1/2 oz = 43 g, density 0.182 g/mL.", "density_g_per_ml": 0.1818 } ], "verified": "2026-10-26", "last_reviewed": "2026-10-26" } ], "yields": [], "notes": "A cup of mini marshmallows weighs 43 to 50 g (1.5 to 1.8 oz). USDA lists a cup of miniatures at 50 g, the Jet-Puffed, Campfire and Kroger bags label 2/3 cup at 30 g, which is 45 g per cup, and King Arthur gives 43 g. The 16% gap is over the 10% tolerance, so this entry publishes the range.\n\nMarshmallows are a sugar and corn syrup foam set with gelatin, whipped full of air and then cut and dusted with cornstarch. Miniatures are the small cylinders sold for hot chocolate, rice cereal treats, sweet potato casserole and s'mores bars. USDA puts marshmallows at 16% water and 81% carbohydrate; the rest of their volume is air, which is why a cup of them weighs barely more than a fifth of a cup of water.\n\nUSDA SR Legacy \"Candies, marshmallows\" (FDC 167995) lists 1 cup of miniatures at 50 g, 10 miniatures at 7 g and one regular marshmallow at 7.2 g. Every US bag checked, Jet-Puffed, Campfire, Kroger, Hill Country Fare and Great Value, labels 2/3 cup at 30 g. Because every brand lands on exactly the same pair, 30 g beside 2/3 cup, it reads as a fixed serving weight with the nearest convenient fraction of a cup printed next to it; it puts minis near 45 g per cup, but the volume is rounded. King Arthur's chart lists mini marshmallows at 1 cup = 1 1/2 oz = 43 g, close to the labels. Recipe sites that count cups per bag put a 10-oz bag at about 5 1/2 cups, 51-54 g per cup, nearer USDA.\n\nThe physical check is about foam and fill. The marshmallow itself is a light foam, and the little cylinders stack with gaps between them. Both vary: different brands whip to different densities, and marshmallows are soft enough that a cup filled by pressing holds noticeably more than one filled by pouring. A cup at 0.18-0.21 g/mL is mostly air, inside and between the pieces, so a few grams' difference between sources is the expected result rather than a mistake by any of them. Stale marshmallows dry out and shrink, and a cup of them weighs more.\n\nPractical guidance: for rice cereal treats, a 10-oz bag holds 283 g, about 6 cups at 45-50 g per cup, and a 16-oz bag 454 g, about 9-10 cups. Recipes for treats usually give the marshmallows by bag or by weight, which is the reliable way to buy them; when a recipe gives cups, pour the minis in loosely and level the top, and expect about 45 g per cup. For hot chocolate, a small handful of 10 minis weighs about 7 g." }, { "id": "mustard-seeds", "schema_version": 3, "name": "Mustard Seeds", "synonyms": [ "mustard seeds", "yellow mustard seeds", "white mustard seeds", "whole mustard seeds", "brown mustard seeds", "mustard seed whole", "sarson", "rai" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, dry whole seeds, spooned and leveled", "density_g_per_ml": null, "range_min": 0.6721, "range_max": 0.8453, "withheld": true, "withheld_reason": "25.8% spread across producer-label and USDA GBFD sources for whole yellow mustard seeds. Sources cluster 159-200 g/cup with no natural break; variance driven by seed variety (yellow vs brown vs black), seed size, moisture, and settling method (loose vs tapped). USDA SR Legacy publishes only ground mustard seed, not whole, so no independent physical-measurement anchor. Range published to reflect genuine commercial variance rather than picking a spurious midpoint.", "sources": [ { "name": "Gneiss Spice Organic Yellow Mustard Seed label", "ref": "Small refill 1/4 cup = 1.4 oz (39.7 g) → 159 g/cup. Certified organic, India origin. Low end of the whole-seed cluster.", "density_g_per_ml": 0.6721 }, { "name": "Savory Spice Yellow Mustard Seeds label (1/2 cup SKU)", "ref": "1/2 cup bag = 2.85 oz (80.8 g) → 162 g/cup. Retail dry-fill packaging.", "density_g_per_ml": 0.6848 }, { "name": "Savory Spice Yellow Mustard Seeds label (1 cup SKU)", "ref": "1 cup bag = 5.7 oz (162 g) → 162 g/cup. Confirms the 1/2-cup SKU figure exactly; two independent product-size measurements from one producer.", "density_g_per_ml": 0.6848 }, { "name": "Chef's Resources spice conversion table", "ref": "\"Mustard Seed, Whole\": 6.40 oz per cup → 181 g/cup. Direct measurement from CR's oz-per-cup table.", "density_g_per_ml": 0.7651 }, { "name": "USDA Branded (Mustard Seed)", "ref": "UPC 725677220161. 203 g/metric cup → 192 g/US cup. Independent USDA GBFD measurement toward the high end of the cluster.", "density_g_per_ml": 0.8115 }, { "name": "Marnamaria Spices and Herbs Yellow Mustard Seeds label", "ref": "Stand-up pouch labeled 3/4 cup = 150 g → 200 g/cup. High end of the observed range; pouch-fill convention may be denser than dry-scoop spooned-and-leveled measurement.", "density_g_per_ml": 0.8453 }, { "name": "USDA SR Legacy (whole mustard seed)", "ref": "Silent. USDA SR Legacy has \"Spices, mustard seed, ground\" (NDB 02024) at 107 g/metric cup but no whole-seed portion record. Same pattern as coriander and cumin — USDA publishes ground forms with cup portions but omits whole seed cup measurements.", "density_g_per_ml": null }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "Silent. KA's chart is baking-focused; whole mustard seeds are a pickling and savory-cooking ingredient rather than a baking staple, so absent from the chart. No KA figure to correct or confirm.", "density_g_per_ml": null } ], "verified": "2026-09-23", "last_reviewed": "2026-09-23" } ], "yields": [], "notes": "TL;DR: Whole yellow mustard seeds span 159-200 grams per cup across producer labels and USDA branded records, driven by seed variety, size, and pack density. The Chef's Resources 181 g/cup sits mid-range and is a reasonable working figure, but the honest 26% spread means no single number covers the shelf. Whole mustard seeds pack roughly 60-100% denser than ground mustard (101 g/cup in the paired entry) because solid spherical seeds nest tightly while ground powder bridges and traps air — the same solid-seed pattern documented for cumin.\n\nMustard seeds come from three species: yellow or white mustard (Sinapis alba, the mildest, most common in Western pickling and American cuisine), brown mustard (Brassica juncea, hotter, standard in Indian and Chinese cooking as sarson or rai), and black mustard (Brassica nigra, hottest, historically dominant but now less common due to harvest difficulty). Retail bags labeled simply \"mustard seeds\" are usually yellow. The seeds are small dense spheres roughly 1-2 mm in diameter for yellow varieties, slightly smaller for brown and black. Whole seeds are used in pickling brines, tempering (tarka) for Indian dishes, seafood boils, sausage seasoning, and coarse-grain mustard preparations. Their flavor and heat only develop after crushing or exposure to water, so whole seeds themselves are mild.\n\nThe density spread across sources reflects real physical variance. Gneiss Spice and Savory Spice retail labels give the low end at 159-162 g/cup. Chef's Resources' oz-per-cup table gives 181 g/cup — a mid-range direct measurement. USDA Global Branded Food Products Database UPC 725677220161 measures a Frontier-adjacent brand at 192 g/cup. Marnamaria Spices sits at the high end (200 g/cup) with a pouch-fill measurement that may reflect tapped-cup convention rather than spooned-and-leveled. USDA SR Legacy is silent on whole mustard seed, publishing only the ground form (107 g/metric cup, matched to the paired ground-mustard entry at 101 g/cup) — the same USDA pattern seen for coriander and cumin, where ground has cup portions but whole does not.\n\nPhysical reasoning supports both the observed range and the dramatic whole-vs-ground contrast. Yellow mustard seeds contain roughly 26% protein, 28-36% fat (mostly as fixed oil), 15-20% carbohydrate, and 6-9% moisture. Their true particle density is around 1.05-1.1 g/mL — dense oil-seed material. Bulk cup density lands at 60-80% of particle density (159-200 g/cup = 0.67-0.85 g/mL), consistent with efficient packing of small dense spheres. Small round seeds nest into inter-seed voids far better than irregular flakes or granules do, so the whole-seed cup density is genuinely high.\n\nGround mustard, by contrast, publishes at 101 g/cup — roughly half the whole-seed density. Grinding takes dense, tightly-packing spheres and reduces them to fine cohesive powder that bridges and traps air pockets. This is the opposite direction from coriander, where whole seeds have internal schizocarp cavities that collapse when ground, producing denser ground powder than whole. Coriander (hollow seed) becomes denser when ground; mustard, cumin, and other solid seeds become lighter. This morphology-based rule is a useful physical prediction for future whole-vs-ground seed comparisons.\n\nKing Arthur Baking is silent on mustard seeds in any form. The chart focuses on baking staples, and whole mustard seeds are a pickling and savory-cooking ingredient rather than a bread or cake component. No KA correction opportunity exists here, but the absence is worth noting for cooks who assume KA's chart covers all common seasonings.\n\nFor practical use, 180 g/cup (roughly the Chef's Resources midpoint) is a reasonable working figure for recipe scaling of yellow mustard seeds. A tablespoon runs about 11 grams, a teaspoon about 3.7 grams. Brown mustard seeds pack slightly denser than yellow due to smaller size and marginally higher oil content; black seeds slightly denser still. When exact measurements matter — for a pickling brine that needs precise brine-to-solids ratio, or for a large-batch Indian tempering — weigh by grams rather than measuring by volume. For casual home cooking (a pinch in a vinaigrette, a spoonful in a curry), cup measurements work fine within the noise floor of the dish." }, { "id": "non-diastatic-malt-powder", "schema_version": 3, "name": "Non-Diastatic Malt Powder", "synonyms": [ "non-diastatic malt powder", "nondiastatic malt powder", "malt powder", "barley malt powder", "barley malt extract powder", "dry malt extract", "DME", "roasted malted barley flour", "non-diastatic malted barley flour" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": null, "range_min": 0.541, "range_max": 0.6848, "withheld": true, "withheld_reason": "Two commercially distinct products both sold as \"non-diastatic malt powder\": spray-dried barley malt extract (King Arthur, Kalustyan's; ~128-144 g/cup) and roasted malted barley flour (Modernist Pantry, Briess; ~144-162 g/cup). No single figure captures both forms, and consumer packaging rarely makes the distinction clear.", "sources": [ { "name": "King Arthur Baking Company — Ingredient Weight Chart", "ref": "2 tablespoons = 5/8 oz = 18 g, extrapolating to 144 g/cup. Chart figure for the KA product, which is barley malt extract (spray-dried syrup, not milled flour).", "density_g_per_ml": 0.6087 }, { "name": "King Arthur Baking Company — Non-Diastatic Malt Powder #100322 (product label)", "ref": "Product label serving: 1 tbsp = 8 g = 30 kcal (7g carbs, 1g protein). Extrapolates to 128 g/cup at level tablespoons. Ingredient statement: barley malt extract. KA's own chart (144 g/cup) and product label (128 g/cup) disagree by 12.5% — almost certainly a heaping-vs-level tablespoon convention gap.", "density_g_per_ml": 0.541 }, { "name": "USDA FoodData Central — Barley malt flour (FDC ID 169740)", "ref": "SR Legacy entry: 1 cup = 162 g. Reference is generic \"barley malt flour\" and does not distinguish diastatic vs non-diastatic, but the density corresponds to a milled whole-grain product, not spray-dried extract.", "fdc_id": 169740, "density_g_per_ml": 0.6848 }, { "name": "Modernist Pantry — Non-Diastatic Malt Powder", "ref": "Product description: 100% pure malted barley flour, specially roasted to deactivate enzymes and develop caramel flavor. Sold in 50g / 400g / 50lb sizes. Ingredient statement: malted barley only. No explicit cup weight on the product page.", "density_g_per_ml": null }, { "name": "Briess Malt & Ingredients Co — BriesSpecialty Nondiastatic Malt Flours", "ref": "Commercial spec sheet: 100% whole-grain flour milled from specialty malts, no enzyme activity, 1-50% usage rate. Distinct from Briess CBW/Maltoferm Malt Extracts (spray-dried syrup, also non-diastatic). Confirms the two-product-family split within the non-diastatic-malt-powder category.", "density_g_per_ml": null }, { "name": "Kalustyan's — Barley Malt Powder, Non-Diastatic", "ref": "Ingredient statement: \"Extract malted barley, corn\" — extract-based product with corn dextrose added, similar family to the KA product. Retail brand carried through Foods of Nations. No explicit serving-size weight published.", "density_g_per_ml": null } ], "verified": "2026-09-22", "last_reviewed": "2026-09-22" } ], "yields": [], "notes": "TL;DR: two commercially distinct products both sold as \"non-diastatic malt powder\" — spray-dried barley malt extract (King Arthur, Kalustyan's) and roasted malted barley flour (Modernist Pantry, Briess) — with density spanning 128-162 g/cup across both forms. Read the ingredient statement and weigh the specific product you have.\n\nNon-diastatic malt powder is one name covering two products with different manufacturing paths and different behaviors on a scale. The first is barley malt extract in dry form: barley malt syrup spray-dried into a fine, hygroscopic powder. King Arthur's Non-Diastatic Malt Powder (product #100322) is this type — the ingredient statement reads simply \"barley malt extract,\" used at 30 calories per tablespoon as essentially a dry malt sweetener with color and flavor. Kalustyan's Non-Diastatic Barley Malt Powder is a close cousin, with corn dextrose added. The second product is roasted malted barley flour: whole malted barley grains kiln-heated above the enzyme-denaturing temperature and then milled into flour. Modernist Pantry sells this as 100% pure malted barley, and Briess's BriesSpecialty Nondiastatic line is the commercial equivalent used by professional bakeries. Both products are enzyme-inactive (hence \"non-diastatic\") and both go into bagels and breads for malty flavor and amber crust color, but they are not interchangeable on volume.\n\nDensity data spans a wide range that reflects this split. King Arthur's Ingredient Weight Chart lists non-diastatic malt powder at 2 tablespoons = 18 g, extrapolating to 144 g/cup. But King Arthur's own product label on the same item reads 1 tablespoon = 8 g — extrapolating to 128 g/cup, a 12.5% self-contradiction that almost certainly comes from the chart using a heaping-tablespoon convention where the label uses level. Both figures describe the same extract-based product. At the other end, USDA FoodData Central entry 169740 for \"barley malt flour\" gives 1 cup = 162 g, corresponding to a milled whole-grain product. The honest published range for anything sold under this name is 128 to 162 g/cup, or roughly 0.54 to 0.68 g/mL, spanning a 27% gap that no single-figure conversion can resolve without knowing which product is actually in the bag.\n\nPhysical behavior differs too. The extract is a sweeter, glassier powder that clumps against humid air and dissolves quickly in dough water; the flour behaves like whole wheat flour on the scoop but browns more aggressively in the crust. Substitution is not one-for-one on volume: a tablespoon of extract contributes more sugar and less starch than a tablespoon of flour. In yeasted doughs the practical usage rate is 0.5 to 2 percent of flour weight regardless of form, so precision at the tablespoon level matters less than getting the total percentage right. For bagel poaching liquids and enriched doughs where malt flavor drives the outcome, the extract form delivers a more concentrated hit per gram.\n\nWithin the malt family, non-diastatic malt powder sits between diastatic malt powder (96 to 168 g/cup, enzyme-active, used at 0.25 to 1 percent for dough conditioning) and malted milk powder (140 g/cup, a blend with milk solids and wheat flour, distinct flavor). Barley malt syrup at 336 g/cup is the liquid form of the extract product — the powder is essentially the same solids evaporated dry. Diastatic and non-diastatic forms are not interchangeable when enzymatic activity matters: using non-diastatic where diastatic is called for produces a slower rise and less oven spring; the reverse can produce a gummy crumb from over-active starch breakdown. For the home baker the practical rule is to read the ingredient statement before treating any figure as authoritative, and weigh the specific product in hand." }, { "id": "nutritional-yeast", "schema_version": 3, "name": "Nutritional Yeast", "synonyms": [ "nutritional yeast", "nooch", "nutritional yeast flakes", "large flake nutritional yeast", "yeast flakes", "vegan cheese seasoning", "savory yeast flakes" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, dry flakes, spooned and leveled", "density_g_per_ml": null, "range_min": 0.2029, "range_max": 0.5411, "withheld": true, "withheld_reason": "167% spread across genuine commercial flake-form variance. Three product-identity clusters, all producer-label AND independent USDA GBFD confirmed: ultra-light flakes (Frontier Co-op Premium, UPC 089836199614) at 44-48 g/cup; large flakes (Bob's Red Mill Large Flake at UPCs 039978025463/039978005465, Frontier Mini Flakes) at 60-64 g/cup; standard flakes (Bragg, UPC 0891551000478) at 80 g/cup; small/dense flakes (Anthony's Premium) at 128 g/cup. Flake thickness, size, and mill process drive real physical density variance far exceeding the milled 10% tolerance. Range published as withheld to force users to check their own product label rather than picking a spurious midpoint.", "sources": [ { "name": "USDA Branded (Nutritional Yeast Flakes)", "ref": "UPC 089836199614. 46 g/metric cup → 44 g/US cup. Ultra-light flake cluster; brand unspecified in USDA record but consistent with Frontier Co-op Premium serving-size label.", "density_g_per_ml": 0.186 }, { "name": "Frontier Co-op Premium Nutritional Yeast label (via Vitacost)", "ref": "Serving size 2 Tbsp (6 g) → 3 g/tbsp → 48 g/cup. Frontier's Premium flake product; matches USDA GBFD UPC 089836199614 ultra-light cluster within precision.", "density_g_per_ml": 0.2029 }, { "name": "Bob's Red Mill Large Flake Nutritional Yeast label", "ref": "Serving size 1/4 cup (15 g) → 60 g/cup. Consistent across all Bob's Red Mill Large Flake listings (Amazon, Fairway, Fresh Grocer, Vitacost, ReciPal).", "density_g_per_ml": 0.2536 }, { "name": "USDA Branded (Bob's Red Mill Large Flake Nutritional Yeast)", "ref": "UPC 039978025463. 63 g/metric cup → 60 g/US cup. Independent USDA GBFD measurement matching Bob's Red Mill's own label exactly.", "density_g_per_ml": 0.2536 }, { "name": "USDA Branded (Bob's Red Mill Large Flake, older SKU)", "ref": "UPC 039978005465. 63 g/metric cup → 60 g/US cup. Second Bob's Red Mill USDA GBFD entry (different package size, same product) matching the label.", "density_g_per_ml": 0.2536 }, { "name": "Frontier Co-op Nutritional Yeast Mini Flakes label (Radiant Life FAQ)", "ref": "Serving suggestion 1/4 cup (16 g) → 64 g/cup. Frontier's Mini Flakes sit slightly denser than Large Flake despite the 'mini' name because the flake thickness dominates over size.", "density_g_per_ml": 0.2705 }, { "name": "Bragg Nutritional Yeast Seasoning label", "ref": "Serving size 1 Tbsp (5 g) → 80 g/cup. Multiple independent nutrition-database confirmations (ReciPal, Carb Manager, FatSecret). Bragg is the most widely-sold nutritional yeast in the US.", "density_g_per_ml": 0.3381 }, { "name": "USDA Branded (Nutritional Yeast Superfoods)", "ref": "UPC 0891551000478. 85 g/metric cup → 80 g/US cup. Independent USDA GBFD measurement matching the Bragg standard-flake cluster within precision.", "density_g_per_ml": 0.3381 }, { "name": "Anthony's Nutritional Yeast label", "ref": "Serving size 2 Tbsp (16 g) → 8 g/tbsp → 128 g/cup. Anthony's Premium sits at the high end of the commercial range; matches multiple independent nutrition-database confirmations (FatSecret, MyFitnessPal, ReciPal).", "density_g_per_ml": 0.5411 }, { "name": "USDA Branded (Bragg Nutritional Yeast Seasoning)", "ref": "UPC 074305066054. 152 g/metric cup → 144 g/US cup. Contradicts Bragg's own label serving (5 g/tbsp → 80 g/cup) by 80% and every other Bragg-brand nutrition-database record.", "density_g_per_ml": 0.6086, "rejected": true, "rejection_reason": "USDA GBFD entry contradicts Bragg's own printed nutrition label by 80%. Bragg's label consistently states 1 Tbsp = 5 g across every third-party nutrition database (ReciPal, Carb Manager, Fairway, Fresh Grocer, FatSecret, MyFoodData), giving 80 g/cup. The GBFD 144 g/cup is a data-submission error — likely the manufacturer submitted an inconsistent metric-cup value that did not reconcile with the household serving. No physical mechanism puts Bragg's Standard flakes at nearly twice their label density. The label-based 80 g/cup figure is used instead." }, { "name": "USDA Branded (Savory Nutritional Yeast Flakes)", "ref": "UPC 017929745608. 180 g/metric cup → 170 g/US cup. Not pure nutritional yeast — a savory yeast-based seasoning blend that includes salt and other seasonings.", "density_g_per_ml": 0.7186, "rejected": true, "rejection_reason": "Product is a savory seasoning blend, not pure nutritional yeast. The 170 g/cup density is dominated by added salt and other seasonings (salt alone runs 273-292 g/cup). Blends do not average their pure components, and seasoning-blend products under the 'Nutritional Yeast' name should be measured on their own labels, not treated as nutritional yeast." }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "Silent on nutritional yeast. KA's chart focuses on baking-relevant flours, sugars, fats, and dairy; nutritional yeast (a savory umami condiment for vegan cooking, not a baking ingredient) is not listed.", "density_g_per_ml": null } ], "verified": "2026-09-23", "last_reviewed": "2026-09-23" } ], "yields": [], "notes": "TL;DR: Nutritional yeast (\"nooch\") spans a genuine 48-128 gram-per-cup range across commercial flake forms — Frontier Co-op Premium at the ultra-light end (48 g/cup), Bob's Red Mill Large Flake in the light/large-flake cluster (60 g/cup), Bragg's standard flakes in the middle (80 g/cup), and Anthony's small/dense flakes at the top (128 g/cup). Flake size, thickness, and mill process drive nearly a 3x density spread, so weigh your specific product or check its own nutrition label — no single figure works across brands.\n\nNutritional yeast is inactivated Saccharomyces cerevisiae, the same yeast species used in baking and brewing but grown on cane and beet molasses under controlled conditions and then killed by heat drying so it has no leavening activity. The dried yeast biomass is rolled or flaked into a yellow, savory condiment beloved in vegan and vegetarian cooking as a dairy-free cheese substitute — hence the affectionate nickname \"nooch.\" Composition is roughly 50% protein, 35% carbohydrate (mostly fiber and beta-glucans), 5-8% fat, and 5-10% ash and residual water. Most commercial products are fortified with B vitamins including B12, which makes nooch a common vegan supplement route to a nutrient otherwise found only in animal foods.\n\nThe reason cup density varies so dramatically is that the finished product exists in radically different physical forms. \"Large flake\" versions (Bob's Red Mill, Frontier Co-op Large Flake) are thin, wide, papery flakes that bridge and trap large air pockets when scooped, giving a very low bulk density of 60-64 g/cup. \"Standard flake\" versions (Bragg, Frontier Mini Flakes) are smaller, thicker flakes that pack more efficiently at 64-80 g/cup. Smaller and denser flake forms (Anthony's) approach 128 g/cup — over twice the large-flake density despite the same underlying yeast material. Ultra-light flake products (Frontier Premium at 48 g/cup, and an unbranded USDA GBFD entry at 44 g/cup) represent the extreme low end where flakes are especially thin or the product is loosely settled.\n\nPhysical reasoning supports the observed spread. The true particle density of dried yeast biomass is roughly 1.3-1.5 g/mL — dense protein-rich material. But bulk cup density is dominated by inter-flake void fraction, which flake size and thickness control almost entirely. Thin large flakes have void fractions above 90% when loosely settled; thicker small flakes pack down to void fractions around 60-70%. This is the same physical mechanism that drives quick-oats variance (thin Quaker flakes at 80 g/cup vs thicker Bob's flakes at 90 g/cup) but taken to a more extreme range because nutritional yeast flake morphology varies more widely than rolled oats.\n\nTwo USDA Global Branded Food Products Database records are rejected as source data. A Bragg entry (UPC 074305066054) at 144 g/cup contradicts Bragg's own printed nutrition label — every third-party nutrition database that transcribes Bragg's label reports 5 g per tablespoon (80 g/cup), and no plausible physical mechanism doubles that. The GBFD 144 figure is treated as a manufacturer data-submission error and the label figure is used instead. A separate \"Savory Nutritional Yeast Flakes\" entry (UPC 017929745608) at 170 g/cup is a seasoning blend containing added salt and spices, not pure nutritional yeast — the added salt (which itself runs 273-292 g/cup) dominates the density. Blends do not average their components and cannot substitute for pure-nooch measurements.\n\nKing Arthur Baking is silent on nutritional yeast entirely. KA's chart is baking-focused and nooch is a savory condiment for vegan cooking rather than a baking ingredient, so there is no KA correction opportunity here — only an absence to note for bakers who might expect coverage.\n\nFor practical use, weigh your specific product. If measuring by cups is unavoidable, use the figure printed on your product's nutrition label: multiply grams-per-serving by the reciprocal of the serving size in cups. A Bob's Red Mill Large Flake user should treat one cup as 60 grams; a Bragg user should treat one cup as 80 grams; an Anthony's user should treat one cup as 128 grams. Recipes typically call for tablespoons or teaspoons of nooch rather than cups (nooch is a finishing seasoning, used in small amounts), so the label per-tablespoon figure is usually the most actionable data point. For a vegan cheese sauce or a large batch application where cup measurements matter, the difference between products can shift final flavor intensity noticeably — Anthony's-density nooch at 2x the mass of Bob's Large Flake will deliver roughly 2x the umami compounds per volumetric measurement." }, { "id": "oat-bran", "schema_version": 3, "name": "Oat Bran", "synonyms": [ "raw oat bran", "oat bran cereal", "oat bran hot cereal", "uncooked oat bran" ], "category": "milled", "default_state": "standard", "confidence": "low", "working_figure": { "grams": 100, "basis": "if the brand is unknown; Quaker is 80 g and Bob's Red Mill 120 g" }, "states": [ { "id": "standard", "label": "Standard, dry, spooned and leveled", "density_g_per_ml": null, "range_min": 0.3381, "range_max": 0.5072, "withheld": true, "withheld_reason": "Sources span 80-120 g per cup, a 50% gap, over the 10% tolerance. USDA's raw oat bran is 94 g per cup; Quaker and Mother's oat bran 80 g (USDA's record and Quaker's label agree); Bob's Red Mill labels 1/3 cup at 40 g (120 g per cup); King Arthur gives 106 g. The products are ground differently. No single figure is published.", "sources": [ { "name": "USDA SR Legacy \"Oat bran, raw\" (FDC 168872)", "ref": "USDA Standard Release publishes 1 cup = 94 g (density 0.397 g/mL). Water 6.6 g, protein 17.3 g, fat 7.0 g, carbohydrate 66.2 g (fibre 15.4 g) per 100 g.", "fdc_id": 168872, "density_g_per_ml": 0.3973 }, { "name": "USDA SR Legacy \"Cereals, QUAKER, Oat Bran, QUAKER/MOTHER'S Oat Bran, dry\" (FDC 174626)", "ref": "USDA Standard Release publishes 1/2 cup = 40 g, extrapolating to 80 g per cup (density 0.338 g/mL). Quaker's own label gives the same 1/2 cup (40 g).", "fdc_id": 174626, "density_g_per_ml": 0.3381 }, { "name": "Bob's Red Mill Oat Bran Hot Cereal (producer label)", "ref": "Retail and brand labels, four products (regular, gluten-free, high-fibre, organic): 1/3 cup (40 g), extrapolating to 120 g per cup (density 0.507 g/mL).", "density_g_per_ml": 0.5072 }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "KA lists \"Oat bran\" at 1/2 cup = 1 7/8 oz = 53 g, extrapolating to 106 g per US cup, density 0.448 g/mL.", "density_g_per_ml": 0.448 } ], "verified": "2026-10-26", "last_reviewed": "2026-10-26" } ], "yields": [], "notes": "A cup of dry oat bran weighs anywhere from 80 to 120 g (2.8 to 4.2 oz), depending mostly on the brand. Quaker's oat bran is 80 g per cup, USDA's raw oat bran 94 g, King Arthur says 106 g and Bob's Red Mill's 120 g. That is far beyond the 10% tolerance, so this entry publishes the range.\n\nOat bran is the outer layer of the oat groat, milled away from the starchy center. It is high in protein (17%) and soluble fibre, the beta-glucan behind the oat heart-health claim, and is eaten as a hot cereal and added to muffins, breads and smoothies. Brands mill it differently: some sell flaky, coarse bran, others a finer, almost floury meal.\n\nUSDA SR Legacy \"Oat bran, raw\" (FDC 168872) lists 1 cup at 94 g. USDA's Quaker and Mother's oat bran record (FDC 174626) lists 1/2 cup at 40 g, 80 g per cup, and Quaker's current label says the same. Bob's Red Mill prints 1/3 cup at 40 g on four different oat bran products, 120 g per cup. King Arthur's chart lists oat bran at 1/2 cup = 53 g, 106 g per cup, inside the range, so it is not a correction.\n\nThe labels are better evidence than usual here, but they need reading carefully. US hot cereal labels all use the same 40 g serving, the reference amount for dry hot cereal, so the grams never change; what each brand chooses is the volume that 40 g fills, and that volume reflects its own product. Quaker's 40 g fills half a cup, Bob's only a third. Kroger's oat bran, at 35 g per 1/3 cup, works out to 105 g per cup, between the two.\n\nThe physical check is about particle shape. Coarse, flaky bran stacks loosely with a lot of air, like wheat bran, which weighs only about 60 g per cup on this site; a fine meal fills the gaps and packs nearly as densely as a whole-grain flour. Oat bran sits between those, and each brand's grind decides where. Quick oats and rolled oats, for comparison, weigh 80-90 g per cup.\n\nPractical guidance: weigh oat bran, and if a recipe gives it in cups, assume it was written for whatever brand the author had. For Quaker or Mother's, use 80 g per cup; for Bob's Red Mill, 120 g; for an unknown brand, about 100 g. A single 40 g serving for hot cereal is the same weight whichever brand you buy, so for breakfast, measure by weight and the volume does not matter." }, { "id": "oat-flour", "name": "Oat flour", "aliases": [ "ground oats", "gluten-free oat flour" ], "category": "milled", "schema_version": 3, "confidence": "low", "default_state": "standard", "states": [ { "id": "standard", "label": "Standard (partially debranned)", "density_g_per_ml": null, "range_min": 0.3889, "range_max": 0.4396, "withheld": true, "withheld_reason": "USDA and KA figures disagree by 12.2% (KA 0.3889 g/mL vs USDA 0.4396 g/mL), just over the 10% milled category tolerance. Oat flour has notable packing variability because of the mix of bran and endosperm particle sizes. Published as a range.", "verified": "2026-09-17", "last_reviewed": "2026-09-17", "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 169741 (Oat flour, partially debranned, SR Legacy). Published: 1 cup = 104 g. Density 0.4396 g/mL. Composition: ~8.7% water, ~67% carbohydrate (of which ~6.5% fibre), ~15% protein, ~9.3% fat.", "density_g_per_ml": 0.4396 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Oat Flour', 1 cup = 92 g, density 0.3889 g/mL.", "density_g_per_ml": 0.3889 } ] } ], "yields": [], "notes": "Oat flour is milled from oat groats, the hulled kernels of the oat plant (Avena sativa). It has become a mainstream flour in North American baking through the growth of gluten-free baking and the perception of oats as a healthful whole-grain choice, though it has been a traditional flour in Scottish and Irish cooking for centuries.\n\nUSDA FoodData Central publishes 1 cup of partially debranned oat flour at 104 grams (FDC 169741, Oat flour, partially debranned), giving a bulk density of 0.4396 grams per millilitre. King Arthur's ingredient weight chart publishes 1 cup at 92 grams and 0.3889 grams per millilitre. The two figures are 12.2 percent apart, just over the 10 percent tolerance we apply to the milled category, so we publish the range 92 to 104 grams per cup rather than a single figure.\n\nThe disagreement is characteristic of oat flour. Because oats contain more oil than most cereals (roughly 9 percent fat versus 1 to 2 percent for wheat or rice), the milled flour has a slightly greasy, cohesive quality that packs differently depending on how tightly it is measured. Add to this the mixture of finer endosperm particles and coarser bran fragments in a typical mill, and the packing behaviour varies enough that a 12 percent spread across sources is real product variation more than measurement disagreement.\n\nOats are naturally gluten-free at the plant level. Contamination during growing, harvesting, transport and milling is the reason most commercial oat flour is not labelled gluten-free unless the manufacturer has taken specific segregation steps. When a recipe or diet requires strict gluten avoidance, use flour explicitly certified as gluten-free (Bob's Red Mill, Nature's Path, and similar brands offer certified versions). Standard supermarket oat flour is safe for oats-tolerant coeliacs only if the label specifies gluten-free status.\n\nOat flour behaves differently from wheat flour in baking because it lacks gluten. It cannot form a bread-dough structure on its own, so oat flour is most often used as a substitute for a portion (typically 25 to 50 percent) of wheat flour in cookies, muffins, quick breads and pancakes, where the wheat flour provides structure and the oat flour adds moisture, tenderness and a mild sweetness. In gluten-free baking, oat flour is one component of a blend rather than a stand-alone flour.\n\nHome bakers can produce oat flour by pulsing rolled oats or steel-cut oats in a food processor or high-power blender until they form a fine flour. Homemade oat flour tends to be coarser than commercial and weighs slightly less per cup because the particles are more irregular. If a recipe was developed with commercial oat flour, home-milled oat flour may need a slight adjustment upward in quantity.\n\nRelated products this entry does not cover: rolled oats (in the dataset separately, about 89 grams per cup), steel-cut oats (whole oat groats cut into pieces, weighs about 180 grams per cup), instant oats (thinner rolled oats designed to cook faster, similar density to regular rolled), oat bran (the outer layer, separated from the endosperm, about 94 grams per cup), and oat groats (whole kernels, about 180 grams per cup).\n\nFDA does not publish an identity standard specific to oat flour; it is regulated under general food safety rules. Codex Alimentarius does not have a specific oat flour standard. Neither publishes a bulk density.\n\nThe category here is 'milled' because oat flour behaves like other fine milled powders in a measuring cup — it clumps slightly, bridges over air pockets, and its density depends on scoop method. The 10 percent tolerance is exceeded here (12.2 percent between sources), which drives the range publication and low confidence rating.", "last_reviewed": "2026-09-17" }, { "id": "panko", "schema_version": 3, "name": "Panko Breadcrumbs", "synonyms": [ "panko", "japanese breadcrumbs", "japanese-style breadcrumbs", "japanese panko", "panko bread crumbs", "panko crumbs" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, white panko (crustless flakes)", "density_g_per_ml": null, "range_min": 0.2114, "range_max": 0.3593, "withheld": true, "withheld_reason": "Flake-size variance across brands drives a 70% cup-weight range. Kikkoman-family large-flake panko at 50-60 g/cup (the classic Japanese-style airy coating), while smaller-flake brands like Whole Foods 365 pack denser at 85 g/cup. Both are legitimately labeled panko.", "sources": [ { "name": "King Arthur Ingredient Weight Chart (Breadcrumbs Japanese Panko)", "ref": "1 cup = 1 3/4 oz = 50g, density 0.211 g/mL. Sits at the lightest end of the panko range, consistent with large-flake Japanese-style panko.", "density_g_per_ml": 0.2114 }, { "name": "Kikkoman Panko nutrition label", "ref": "1/2 cup = 30g per label, so 60 g/cup, density 0.254 g/mL. Kikkoman is the dominant Japanese-heritage US panko brand.", "density_g_per_ml": 0.2537 }, { "name": "4C Japanese Style Seasoned Panko nutrition label", "ref": "1/2 cup = 28g per label (13 oz canister / 13 servings). 56 g/cup, density 0.237 g/mL. Confirms Kikkoman-family light panko density.", "density_g_per_ml": 0.2367 }, { "name": "Whole Foods 365 Panko Bread Crumbs nutrition label", "ref": "8 oz bag / 8 servings = 28.4g per 1/3 cup serving, so 85 g/cup, density 0.360 g/mL. Denser than Kikkoman-family panko due to smaller-flake grind.", "density_g_per_ml": 0.3593 }, { "name": "Kikkoman Whole Wheat Panko nutrition label", "ref": "1/3 cup = 30g per label, so 90 g/cup. Denser than white panko because whole-grain flakes contain bran that adds mass at the same flake volume. Noted for context; not included in the standard-panko range.", "density_g_per_ml": 0.3805 } ], "verified": "2026-09-22", "last_reviewed": "2026-09-22" } ], "yields": [], "notes": "TL;DR: Panko ranges 50-85 g/cup across brands, roughly half the weight of regular dried breadcrumbs (112 g/cup per King Arthur), because panko is made as elongated, crustless flakes rather than round crumbs. Air trapped between flakes is the defining physical feature and the reason panko stays crunchier when fried.\n\nPanko is a Japanese-style breadcrumb made from crustless white bread that is baked with electrical current rather than an oven, then ground into elongated, jagged flakes rather than the round crumbs of Western breadcrumbs. The flake geometry is the point: panko coats food without packing tightly and traps less oil during frying, leaving the finished coating dramatically crunchier than the same weight of regular breadcrumbs would deliver. Japanese chef Yoshiaki Yasuda developed the modern electrical-current panko process for the wartime Japanese army in the 1940s; commercial exports to the US began in earnest after 2000, and panko is now a global mainstream product used for katsu, tonkatsu, tempura, oven-fried chicken, meatballs, mac and cheese toppings, and countless other applications where a light crunchy coating matters.\n\nCup weight varies substantially across brands (a real 50-85 g/cup range for white panko). King Arthur's Ingredient Weight Chart lists Japanese Panko at 1 cup = 50g, the lightest end. Kikkoman (the dominant Japanese-heritage US brand) publishes 30g per 1/2 cup on its nutrition label, or 60 g/cup. 4C Japanese Style Seasoned Panko lists 28g per 1/2 cup, or 56 g/cup. Whole Foods 365 Panko is denser at 28g per 1/3 cup, or 85 g/cup, reflecting a smaller-flake grind. The 70% intra-panko range means recipe conversions genuinely depend on which brand you have.\n\nPanko versus regular dried breadcrumbs: the 2x density gap is the point. Regular dried breadcrumbs (existing entry, 112 g/cup per King Arthur) are ground into small round particles with intact crust and less trapped air. When used as a coating, they pack tightly against the food surface and absorb oil during frying, giving a denser, greasier crunch. Panko flakes trap air, sit on the food surface more loosely, and stay crunchier for longer. In recipes, panko is not a 1:1 volume substitute for regular breadcrumbs: 1 cup regular breadcrumbs weighs 112g, while 1 cup panko weighs 50-85g. For same-weight substitution, 1 cup regular breadcrumbs equals about 1.5 to 2 cups panko. For same-volume substitution, panko delivers less coating mass per cup, so recipes calling for 1 cup regular breadcrumbs will over-coat if you scoop 1 cup panko for the same job.\n\nPanko versus fresh breadcrumbs: King Arthur lists fresh breadcrumbs at 84 g/cup, actually similar to the denser Whole Foods 365 Panko by weight, but fundamentally different in texture. Fresh breadcrumbs are soft and moist; panko is dry and crisp. They cannot substitute for each other in any recipe where texture matters.\n\nWhole wheat panko is a niche variant sold by Kikkoman and a few smaller brands. It packs denser than white panko (Kikkoman Whole Wheat lists at 30g per 1/3 cup = 90 g/cup) because whole-grain flakes contain bran, which adds mass at the same flake volume. Substitute 1:1 by weight if replacing white panko, or use slightly less volume (about 2/3 the cup measure) if the recipe was tested with white panko.\n\nPhysical explanation of the density variance: regular breadcrumb density depends mostly on how finely the crumbs are ground and how much crust is included. Panko density depends on flake size, bread air content, and whether the source bread is white or whole grain. Kikkoman's original panko uses very-large, very-airy flakes (60 g/cup); Whole Foods 365 uses smaller, denser flakes (85 g/cup). Both are legitimately called panko, but a cup of panko in a recipe can mean either.\n\nPractical baker recommendation: for the classic light-and-crispy panko coating, use Kikkoman original at 60 g/cup or King Arthur's chart figure at 50 g/cup as your reference. For any recipe calling for panko by cup measure, weigh to match the tested figure if you know it, or aim for 55-60g per cup for the light Japanese-style coating quality. If using Whole Foods 365 or another denser brand, use about 2/3 the volume to hit the same coating mass, or the finished dish will be over-coated." }, { "id": "peaches-fresh", "schema_version": 3, "name": "Peaches (fresh)", "synonyms": [ "fresh peaches", "peaches", "diced peaches", "sliced peaches", "chopped peaches", "peaches peeled diced", "peaches peeled sliced" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, peeled and cut (sliced or diced) loose in the cup", "density_g_per_ml": null, "range_min": 0.6509, "range_max": 0.7185, "withheld": true, "withheld_reason": "USDA and King Arthur measure different cut states of the same fruit: USDA publishes 1 cup sliced at 154 g while King Arthur publishes 1 cup peeled and diced at 170 g. The 10.4% gap is just over the 10% milled tolerance and reflects a real physical difference (diced cuboid pieces pack denser than curved slices) rather than measurement noise. This entry publishes the range rather than picking one state.", "sources": [ { "name": "USDA FoodData Central", "ref": "Peaches, yellow, raw (SR Legacy, FDC ID 169928 / NDB 09236). Published: 1 cup slices = 154 g. Density 0.6509 g/mL. The same record also publishes whole-fruit size portions: 1 small (2-1/2 inch dia) = 130 g, 1 medium (2-2/3 inch dia) = 150 g, 1 large (2-3/4 inch dia) = 175 g, 1 extra large (3 inch dia) = 224 g, 1 NLEA serving = 147 g. USDA does not publish a diced cup portion.", "density_g_per_ml": 0.6509 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Peaches (peeled and diced)', 1 cup (170 g/cup). Density 0.7185 g/mL. KA only publishes the diced state.", "density_g_per_ml": 0.7185 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Fresh peaches are the first entry on the site where the published range comes from a state mismatch between authoritative sources rather than measurement variance for the same state. USDA SR Legacy publishes yellow raw peaches at 154 grams per cup sliced (FDC ID 169928), while King Arthur publishes 170 grams per cup peeled and diced. The 10.4% gap is just over the 10% milled tolerance, so this entry publishes the range 154 to 170 g/cup rather than picking a single figure.\n\nThe gap is real physics, not sloppy measurement. Sliced peaches are thin curved wedges cut from around the pit, and they leave irregular gaps in a cup because their curved surfaces don't stack cleanly against each other. Diced peaches are compact cuboid pieces (typically half to three-quarter inch cubes) that stack against each other and fill the interstitial space more efficiently. The same fruit, cut two different ways, packs at 154 g/cup as slices and 170 g/cup as dice, about a 10% density increase from dicing. This mirrors the strawberry pattern documented in the strawberries-sliced entry (whole 144 g/cup versus sliced 166 g/cup, 15% denser when sliced) and extends it: for strawberries, slicing packs denser than whole; for peaches, dicing packs denser than slicing. The general rule is that smaller and more uniform pieces stack better.\n\nUSDA SR Legacy record 09236 provides unusually rich portion data that most bakers never see. Beyond the 154 g/cup sliced figure, USDA defines specific whole-fruit portions by diameter: a small peach at 2.5 inches weighs 130 g, medium at 2.67 inches weighs 150 g, large at 2.75 inches weighs 175 g, and extra large at 3 inches reaches 224 g. This means a recipe calling for 2 medium peaches specifies 300 g of whole fruit regardless of how it's cut. Bakers who weigh their fruit sidestep the compounding error of guessing 'medium' and then guessing 'cup.'\n\nCompared to the site's other fresh cut fruits, peaches sit in the middle of the density band. Apple-slices at 109 g/cup are lighter because apple slices are thin and curved with substantial interstitial air. Pineapple-diced at 165 g/cup and sliced strawberries at 166 g/cup pack similarly to peaches in the middle of the fresh-chunked-fruit range. Fresh berries anchor the lighter end: cranberries at 95, raspberries at 123, blueberries at 148 g/cup. The pattern across all these fresh-fruit entries is that cut fresh fruit generally lands between 100 and 170 g/cup depending on cut geometry and interstitial packing.\n\nCategory assignment is milled, matching the fresh cut fruit precedent established by apple-slices, pineapple-diced, strawberries-sliced, and the fresh berry entries. Solid water-containing pieces whose packing depends on shape and fill method belong here rather than in sugar, which is reserved for small crystalline or particulate solids like sugars, salts, chocolate chips, and small dried fruits such as raisins and currants. Peaches at any cut are too large and geometrically complex for the sugar category.\n\nRipeness affects this entry more than most fresh fruits because peaches soften significantly as they ripen. A firm underripe peach cuts cleanly into geometric slices or dice that pack close to the published figures. A very ripe peach compresses under its own weight in the cup, releases juice, and can pack noticeably denser than the published range. USDA's 154 g and King Arthur's 170 g both assume firm-to-just-ripe fruit; bakers using overripe fruit should expect somewhat higher weights per cup and slightly wetter results in the finished bake.\n\nConfidence is low because the two authoritative sources measure different cut states and their published figures differ by 10.4%, just over the milled tolerance. This is not sourcing weakness; both USDA SR Legacy and King Arthur are cited transparently. The range publish is honest about the reality that a 'cup of peaches' can mean two different masses depending on the cut." }, { "id": "peanuts", "schema_version": 3, "name": "Peanuts", "synonyms": [ "shelled peanuts", "raw peanuts", "whole peanuts", "groundnuts", "peanut kernels" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, whole shelled kernels loose in the cup", "density_g_per_ml": 0.6171, "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 172430, Peanuts, all types, raw (SR Legacy). Published: 1 cup = 146 g. Density 0.6171 g/mL.", "density_g_per_ml": 0.6171 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Peanuts (whole, shelled)', 1 cup = 142 g. Density 0.6003 g/mL.", "density_g_per_ml": 0.6003 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Two sources agree within tolerance. USDA FoodData Central FDC 172430 (Peanuts, all types, raw, SR Legacy) publishes 1 cup at 146 g, implying a density of 0.6171 g/mL. King Arthur's Ingredient Weight Chart lists 'Peanuts (whole, shelled)' at 1 cup = 142 g, implying 0.6003 g/mL. The gap between them is 2.82%, well inside the 5% tolerance that would apply to a tightly-defined kernel, let alone the 10% milled tolerance for whole and chopped nuts, so this entry publishes USDA's figure of 146 g per cup and names both sources. Neither source names a specific filling method, and both figures are for the shelled, uncooked kernel.\n\nPeanut kernels pack denser than the tree nuts published on this site. For comparison, pistachios publish at 123 g per cup, hazelnuts at 135 g per cup, and peanuts at 146 g per cup. The pattern tracks with kernel size and shape: peanut kernels are smaller than hazelnut kernels (typically 10 to 15 mm long) and typically split into paired half-ellipsoids with one flat cleavage face. The flat face allows flat-to-flat contact between neighboring kernels, which reduces air-gap volume more than the round-on-round contact of spherical hazelnut kernels. USDA's own reference documentation notes that a loosely filled cup can vary by 20 to 30 g depending on whether peanuts are whole, halved or chopped, an unusually wide fill-method sensitivity that reflects the shape variability.\n\nPeanuts are botanically legumes (Fabaceae family) rather than tree nuts, and are the seed of Arachis hypogaea. USDA and the food industry classify them with nuts for nutritional and culinary purposes because their fat, protein and use profile matches tree nuts more closely than beans or lentils. This site places peanuts in the milled category alongside other whole and chopped nuts because the category rule tracks physical packing behavior rather than botanical family: whole peanut kernels pack by scoop with air gaps in the same manner as tree-nut kernels. The peanut allergen risk is separate from tree-nut allergen risk and readers with either allergy should note the distinction.\n\nPeanut butter, published on this site in the fat category, is a fundamentally different product. It is a smooth homogeneous paste of ground peanuts with the fat phase continuous, and its density behavior is set by the fat and moisture content rather than by kernel packing. Chopped or roasted peanuts pack differently from raw whole peanuts and are separate products that would earn their own entries when a second authoritative source becomes available. USDA has FDC records for dry-roasted, oil-roasted, boiled and honey-roasted peanuts, but King Arthur does not list variant preparations.\n\nProduct variants: raw versus dry-roasted peanuts differ by approximately 4% in moisture, which slightly increases apparent density after roasting but rarely crosses the milled tolerance. Salted versus unsalted differs by 1 to 2% by weight from added sodium, well inside measurement noise. Spanish, Runner, Virginia and Valencia are peanut cultivars that show small differences in kernel size and cup mass but sit within a few percent of the all-types average.\n\nNo standards body publishes a bulk density for peanuts. Codex Alimentarius has a standard for peanuts covering moisture content, defect tolerances and aflatoxin limits but not physical density. Two independent authoritative sources agree within tolerance, so this entry is held at medium confidence. A third independent source, such as a professional culinary reference or a producer's laboratory measurement, matching within tolerance would move it to high confidence.", "last_reviewed": "2026-09-21" }, { "id": "pearl-barley", "schema_version": 3, "name": "Pearl Barley", "synonyms": [ "pearl barley", "pearled barley", "polished barley", "barley pearls" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": 0.8454, "sources": [ { "name": "USDA FoodData Central — Pearl Barley (branded, UPC 03003406135, via aqua-calc)", "ref": "USDA branded food entry: 211 g/metric cup = 200 g/US cup = 7.1 oz/US cup, density 0.845 g/mL. Central USDA-verified figure for pearl barley density under spooned-and-leveled reference conditions.", "density_g_per_ml": 0.8454 }, { "name": "Bob's Red Mill Pearl Barley (product label, 30 oz retail bag)", "ref": "Label serving: 1/4 cup dry = 54 g = 200 kcal (44 g carb, 5 g protein, 0.5 g fat, 6 g fiber). Extrapolates to 216 g/cup at 0.913 g/mL, roughly 8% above the USDA central figure. Sits at the high end of the observed range, likely reflecting tighter-packed polished grains in Bob's Red Mill's specific pearl grade. Ingredient statement: pearl barley only. Dominant US home-baker retail brand.", "density_g_per_ml": 0.913 }, { "name": "PantryMath — Pearl Barley conversion (USDA-referenced)", "ref": "Reference: 1 US cup = 200 g, 1 tablespoon = 12.5 g. Cooked yield ratio 1:3.5 (1 cup dry expands to 3.5 cups cooked). Matches USDA branded figure exactly, confirming 200 g/cup as the mainstream working value for volume-to-weight conversion.", "density_g_per_ml": 0.8454 }, { "name": "GramCups — Pearl Barley (measured spooned-and-leveled)", "ref": "Measured reference density: 200 g per US cup at 0.845 g/mL, spooned and leveled rather than scooped. Comparison table places pearl barley alongside white rice (185 g/cup), brown rice (190 g/cup), arborio rice (200 g/cup), and quinoa (170 g/cup) — the intact-refined-grain density band. Roughly triples in volume when cooked.", "density_g_per_ml": 0.8454 }, { "name": "Whole Grains Council / GoBarley — pearl barley product family reference", "ref": "Trade association reference: pearl barley is barley whose inedible hull and bran layers have been polished off, giving smooth pearlescent grains with faster cooking than hulled barley (25-30 minutes vs 40-60 minutes). Pearl barley is refined and does not qualify for whole-grain health claims; hulled barley (bran retained) does. Distinct from pot barley (partial polishing, intermediate), barley grits (cracked kernel pieces), barley flakes (steam-rolled kernels), and barley flour (ground).", "density_g_per_ml": null } ], "verified": "2026-09-22", "last_reviewed": "2026-09-22" } ], "yields": [], "notes": "TL;DR: 200 g/cup (0.85 g/mL). Three independent USDA-referenced sources converge exactly at 200 g/cup; Bob's Red Mill lists slightly higher at 216 g/cup (8% above USDA, within milled tolerance) reflecting tighter-packed polished grains. King Arthur is silent on pearl barley — the chart lists wheat berries and farro but skips other whole or refined intact grains.\n\nPearl barley is whole barley grain with both the inedible outer hull and the bran layer polished off, producing smooth pearlescent kernels that cook in 25-30 minutes. The polishing process removes most of the fiber and much of the mineral content, so pearl barley is a refined grain product that does not qualify for USDA or FDA whole-grain health claims. What it gains for the loss is convenience — hulled barley (the whole-grain form) takes 40-60 minutes to cook and holds a firmer bite. Pearl barley is the form used in classic Scotch broth, Italian orzotto/perlotto (barley risotto), Central European mushroom-barley soups, British barley water, and the American beef-and-barley soup canon. In each case, the starch that releases as the grain simmers thickens the surrounding liquid to comforting body, which is precisely what hulled barley resists doing.\n\nDensity data converges tightly for a refined intact grain. USDA FoodData Central's branded entry (UPC 03003406135) gives 211 g per metric cup, or 200 g per US cup at 0.845 g/mL. PantryMath's USDA-referenced conversion tool lists 1 cup = 200 g. GramCups' measured density under spooned-and-leveled reference conditions also gives 200 g/cup. Bob's Red Mill's product label lists 1/4 cup dry = 54 g, extrapolating to 216 g/cup at 0.913 g/mL — about 8% above the USDA central figure. Both numbers describe legitimate products; the 8% spread sits within the milled category's 10% tolerance and likely reflects tighter-packed polished grains in Bob's Red Mill's specific pearl grade rather than a data disagreement. Publishing at the USDA-anchored 200 g/cup matches the mainstream working figure used by cookbook authors and conversion sites; Bob's Red Mill users can add roughly 8% to any recipe calling for a cup of pearl barley if they want to hit the label-anchored weight.\n\nWithin the broader database, pearl barley at 200 g/cup and 0.845 g/mL sits in the intact-refined-grain density band alongside white rice (188 g/cup per KA), arborio rice (approximately 200 g/cup), and quinoa (170 g/cup — slightly lighter due to smaller grain size). This band is well below the packed-density of very small round grains (sesame seeds, poppy seeds at 145-155 g/cup) and well above the rolled or flaked grain band (rolled oats at 85 g/cup, barley flakes at 80-98 g/cup) where air gaps between flakes reduce bulk density substantially. Wheat berries and farro (both existing entries at similar 190-200 g/cup ranges) round out the intact-grain neighborhood.\n\nThe barley product family bears careful disambiguation because the labeling is not consistent across regions. Pearl barley (this entry) is polished intact kernels, refined. Hulled barley has only the inedible outer hull removed and retains the bran, making it a whole grain with more fiber, more B vitamins, and longer cooking time. Pot barley (also called Scotch barley) is polished for less time than pearl barley, retaining more bran — an intermediate between pearl and hulled that is common in British and Canadian markets but less available in US grocery. Barley grits are cracked or broken kernel pieces used as a hot cereal or side. Barley flakes (already in this database at 80-98 g/cup) are pearl or hulled barley kernels steam-rolled flat, similar in structure to rolled oats. Barley flour (already in the database) is ground barley from pearl or whole hulled kernels. Barley malt syrup (already in the database at 336 g/cup) is the concentrated liquid from malted barley. Only hulled and pot barley qualify as whole-grain products; pearl barley, barley flakes made from pearl grade, and refined barley flour do not.\n\nFor practical cooking, 1 cup of dry pearl barley (200 g) cooks in 3-4 cups of water or broth over 25-30 minutes to yield about 3.5 cups cooked, a 3.5x volume expansion. Substitution across the barley family works on weight basis but not on volume basis — a soup recipe calling for 1 cup of pearl barley substitutes to about 0.9 cups of hulled barley by weight (hulled barley packs slightly denser at roughly 220 g/cup) and about 2.3 cups of barley flakes (which pack much lighter due to their flat structure). For risotto and pilaf applications where the starch release matters, pearl barley is not truly interchangeable with hulled barley regardless of weight matching — the whole-grain form resists the creamy texture that defines the dish." }, { "id": "pears-fresh", "schema_version": 3, "name": "Pears (fresh)", "synonyms": [ "fresh pears", "pears", "diced pears", "sliced pears", "chopped pears", "pears peeled diced", "pears peeled sliced" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, peeled and cut (sliced or diced) loose in the cup", "density_g_per_ml": null, "range_min": 0.5917, "range_max": 0.6889, "withheld": true, "withheld_reason": "USDA and King Arthur measure different cut states of the same fruit: USDA cultivar records publish 1 cup sliced at 140 g while King Arthur publishes 1 cup peeled and diced at 163 g. The 16.4% gap is well over the 10% milled tolerance and reflects a real physical difference (diced cuboid pieces pack denser than curved sliced wedges) rather than measurement noise. This entry publishes the range rather than picking one state. Same pattern as peaches-fresh (10.4% state-mismatch gap).", "sources": [ { "name": "USDA FoodData Central", "ref": "Multiple USDA SR Legacy cultivar records converge on 1 cup sliced = 140 g. Verified across Bartlett (FDC 167776, 746773), Bosc (FDC 167778), and Green Anjou (FDC 167779). Density 0.5917 g/mL. USDA does not publish a diced cup portion for any pear cultivar. An older generic 'Pears, raw' record (FDC 169118 / NDB 09252) implies a higher cup portion around 168 g via calorie back-calculation, likely reflecting different portion methodology; this entry uses the cultivar-specific records as the modern USDA anchor because they agree across three independent varieties.", "density_g_per_ml": 0.5917 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Pears (peeled and diced)', 1 cup (163 g/cup). Density 0.6889 g/mL. KA only publishes the diced state.", "density_g_per_ml": 0.6889 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Fresh pears follow the same state-mismatch pattern documented in the peaches-fresh entry, and the range publish is required for the same reason. USDA SR Legacy publishes 1 cup sliced at 140 grams consistently across Bartlett, Bosc, and Green Anjou cultivar records, giving density 0.5917 g/mL. King Arthur publishes 1 cup peeled and diced at 163 grams, giving density 0.6889 g/mL. The 16.4% gap between them is well over the 10% milled tolerance, so this entry publishes the range 140 to 163 g/cup rather than picking a single figure.\n\nThe gap direction and magnitude are consistent with the pears-are-firmer-than-peaches physical intuition. Sliced pear wedges are thin curved pieces cut from around the core, and they stack irregularly with substantial interstitial air between the curved surfaces. Diced pears are compact cuboid pieces that stack against each other more efficiently. The same fruit, cut two different ways, packs at 140 g/cup sliced and 163 g/cup diced, roughly 16% denser when diced. This is the same physics documented in peaches-fresh (154 sliced versus 170 diced, 10% denser diced) but with a larger effect for pears because pear flesh is firmer and more grit-cell-dense than peach flesh, so the dice hold their cuboid shape better and pack tighter.\n\nUSDA's cultivar convergence is the more interesting finding. Three separate cultivar records (Bartlett, Bosc, Green Anjou) independently publish 1 cup sliced at exactly 140 grams, despite the cultivars having different flesh density, water content, and calorie counts per 100 grams (Bartlett 57 kcal/100g, Bosc 67 kcal/100g, Green Anjou 66 kcal/100g). That the packing density is identical across cultivars while the per-mass composition varies tells us the 140 g figure is dominated by cut geometry and standard measurement methodology rather than by cultivar-specific flesh properties. An older generic 'Pears, raw' record (NDB 09252, released before the cultivar-specific records) implies a cup portion around 168 g through back-calculation, higher than the cultivar consensus, likely because it used an older portion-measurement standard.\n\nCompared to the site's other fresh cut fruit entries, pears sliced at 140 g/cup fit between apple slices (109 g/cup, lightest cut fruit because slices are thin) and peaches sliced (154 g/cup). Pears diced at 163 g/cup sit between fresh pineapple diced (165) and peaches diced (170). The overall pattern is that fresh cut fruit at cup measurement lands in a fairly narrow density band from about 100 to 175 g/cup, with the specific value determined by cut geometry rather than the fruit's underlying flesh density.\n\nCategory assignment is milled, following the fresh cut fruit precedent established by apple-slices, pineapple-diced, strawberries-sliced, peaches-fresh, and the fresh berry entries. Solid water-containing pieces whose packing depends on shape and fill method belong here rather than in sugar, which is reserved for small crystalline or particulate solids like sugars, salts, chocolate chips, and small dried fruits such as raisins and currants. Pears at any cut are too large and geometrically complex for the sugar category.\n\nRipeness affects pears less dramatically than peaches because pear flesh remains firm even when ripe, unlike peach flesh which softens noticeably. Very ripe pears develop a buttery mouthfeel but still hold their cut shape in a cup. This means the published range holds reasonably well across the ripeness spectrum that most bakers actually use, from firm just-yielding fruit to fully ripe eating-quality pears. Underripe pears cut cleanly and pack slightly looser because the pieces are more rigid; overripe pears compress and release juice, packing slightly denser.\n\nConfidence is low because the two authoritative sources measure different cut states and their figures differ by 16.4%, well over the milled tolerance. This is not sourcing weakness. USDA has extensive cultivar-level data agreement at 140 g/cup sliced, and King Arthur publishes an equally authoritative 163 g/cup diced. The range publish is honest about the reality that a 'cup of pears' can mean two different masses depending on the cut, and both are correct for their respective states." }, { "id": "pecan-halves", "schema_version": 3, "name": "Pecan halves", "synonyms": [ "whole pecans", "pecan kernels", "pecans (whole)", "raw pecan halves" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, halves loose in the cup", "density_g_per_ml": 0.4185, "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 170182, Nuts, pecans (SR Legacy). Published: 1 cup halves = 99 g. Density 0.4185 g/mL.", "density_g_per_ml": 0.4185 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Pecans (whole)', 1 cup = 105 g. Density 0.4438 g/mL.", "density_g_per_ml": 0.4438 } ], "verified": "2026-09-20", "last_reviewed": "2026-09-20" } ], "yields": [], "notes": "Two sources agree within tolerance. USDA FDC 170182 (Nuts, pecans, SR Legacy) publishes 1 cup halves at 99 g, implying a density of 0.4185 g/mL. King Arthur's Ingredient Weight Chart lists 'Pecans (whole)' at 105 g per cup, implying 0.4438 g/mL. The gap between them is 6.06%, inside the 10% milled tolerance for whole and chopped nuts, so this entry publishes USDA's figure of 99 g per cup and names both sources. Neither source names a specific filling method.\n\nThe contrast with walnut halves is instructive. This site publishes walnut halves as a range of 99 to 128 g per cup because USDA and King Arthur disagree by 29.3% on that ingredient. Pecans do not show the same disagreement despite being a physically similar product. The reason is shape: pecan halves have a consistent crescent geometry that packs into cups with more predictable air gaps, while walnut halves are irregular and their fill depends heavily on orientation. Two pecan crescents interlock in roughly the same way regardless of who fills the cup; two walnut halves do not. This is why pecan halves qualify for a published figure and walnut halves do not.\n\nThe comparison with chopped pecans, published here at 109 g per cup from the same USDA record, shows only a 10 g difference against the whole-halves figure. Chopping pecans has less effect on density than chopping walnuts because the pieces come apart along the same crescent axes and settle into similar arrangements. Chopped pecans are therefore only marginally denser than whole halves, whereas chopped walnuts are meaningfully denser than whole walnut halves.\n\nPecan meal, a fine grind used as a partial flour substitute in shortbread and tart crusts, is a distinct product. King Arthur publishes pecan meal at 80 g per cup, roughly 20% less dense than the halves figure, which is expected: finer particles trap more air and pack less predictably than whole crescents. Pecan meal will be added as a separate entry when USDA data confirms the figure.\n\nPecans are placed in the milled category alongside other whole and chopped nuts. The category rule assigns whole and chopped nuts to milled because they pack by scoop with air gaps, in the same way whole seeds and grains do. The 10% category tolerance applies here, and the 6.06% observed gap between sources is well inside it.\n\nNo standards body publishes a bulk density for pecans or other tree nuts. Codex Alimentarius standards for tree nuts cover moisture content, defect tolerances and shell fragment limits but not physical density. Two sources agree within tolerance, both from authoritative independent publishers, so this entry is held at medium confidence. A third independent source (a professional culinary reference or a producer's laboratory measurement) matching within tolerance would move it to high confidence.", "last_reviewed": "2026-09-20" }, { "id": "pine-nuts", "schema_version": 3, "name": "Pine nuts", "synonyms": [ "pignoli", "pignolias", "pinoli", "raw pine nuts", "stone pine seeds" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, kernels loose in the cup", "density_g_per_ml": 0.5706, "sources": [ { "name": "USDA FoodData Central", "ref": "Nuts, pine nuts, dried (SR Legacy). Published: 1 cup = 135 g. Density 0.5706 g/mL. Confirmed via proportional consistency across 0.5 and 1 cup portions and calorie ratio (909 kcal per cup / 673 kcal per 100g = 135 g).", "density_g_per_ml": 0.5706 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Pine nuts', 1/2 cup = 71 g (142 g/cup). Density 0.6003 g/mL.", "density_g_per_ml": 0.6003 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Two sources agree within tolerance. USDA FoodData Central publishes Nuts, pine nuts, dried (SR Legacy) at 1 cup = 135 g, implying a density of 0.5706 g/mL. King Arthur's Ingredient Weight Chart lists 'Pine nuts' at 1/2 cup = 71 g, extrapolating to 142 g per cup and 0.6003 g/mL. The gap between them is 5.19%, well inside the 10% milled tolerance for whole nuts, so this entry publishes USDA's figure of 135 g per cup and names both sources. The USDA cup portion is confirmed by proportional consistency across cup fractions and by the calorie ratio (909 kcal per cup divided by 673 kcal per 100 g = 135 g).\n\nPine nuts pack at roughly the same apparent density as hazelnuts despite being dramatically different in size. Individual pine nut kernels weigh approximately 0.5 g each and are teardrop-shaped, roughly 10 to 15 mm long, while hazelnut kernels are approximately 1.2 g each and roughly spherical. Naïve intuition suggests that smaller kernels should pack denser, filling gaps more efficiently, but the pattern breaks for elongated shapes. Small teardrops bridge and lock into arrangements that leave voids at each interlock, while spheres slide past each other into settled positions. The result is that hazelnuts and pine nuts land at the same 135 g per cup on USDA's tables despite the size difference of nearly three-to-one. Peanuts, which have similar small-kernel size but flat cleavage faces from splitting, pack denser at 146 g per cup because the flat faces allow flat-to-flat contact that teardrops cannot achieve.\n\nThe commercial pine nut sold as pignoli or pignolia is the seed of Pinus pinea, the Italian stone pine. The species classification matters for both flavor and density: seeds of Pinus koraiensis, the Korean pine, and Pinus sibirica, the Siberian pine, dominate imported product to the United States and Europe. Kernel shape and mass vary slightly between species, but published USDA data averages across commercial sources rather than breaking out by species. Pinyon pine nuts (Pinus edulis), a distinct North American species used primarily in the American Southwest, have a different fat profile and different density, and are treated as a separate USDA record. This entry covers the standard commercial pignoli only.\n\nProduct variants: raw versus dry-roasted pine nuts differ by approximately 4 percent in moisture, which slightly increases apparent density after roasting but rarely crosses tolerance. Pine nut oil is a distinct product not covered by this site's oil entries because King Arthur does not list it and USDA data is sparse. Pine nut butter, sometimes sold as an alternative to almond butter, is a fat-category product with its density set by fat content rather than kernel packing.\n\nPine nuts are placed in the milled category alongside other whole and chopped nuts and whole seeds. The category rule tracks physical packing behavior rather than milling: whole seed kernels pack by scoop with air gaps in the same way that whole tree nuts do. The 10 percent category tolerance applies here, and the 5.19 percent observed gap between sources is well inside it.\n\nNo standards body publishes a bulk density for pine nuts. Codex Alimentarius has a standard for pine nuts covering moisture content, defect tolerances and aflatoxin limits but not physical density of the kernels. Two independent authoritative sources agree within tolerance, so this entry is held at medium confidence. A third independent source, such as a professional culinary reference or a producer's laboratory measurement, matching within tolerance would move it to high confidence.", "last_reviewed": "2026-09-21" }, { "id": "pineapple-diced", "schema_version": 3, "name": "Pineapple (fresh, diced)", "synonyms": [ "fresh pineapple diced", "raw pineapple chunks", "fresh pineapple chunks", "diced pineapple", "cored diced pineapple" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, fresh diced or chunked pieces loose in the cup", "density_g_per_ml": 0.6975, "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 169124, Pineapple, raw, all varieties (SR Legacy). Published: 1 cup chunks = 165 g. Density 0.6975 g/mL.", "density_g_per_ml": 0.6975 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Pineapple (fresh or canned, diced)', 1 cup = 170 g. Density 0.7186 g/mL. KA groups fresh and canned diced under one figure; USDA specifically measures raw fresh.", "density_g_per_ml": 0.7186 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Two sources agree within tolerance. USDA FoodData Central FDC 169124 (Pineapple, raw, all varieties, SR Legacy) publishes 1 cup chunks at 165 g, implying a density of 0.6975 g/mL. King Arthur's Ingredient Weight Chart lists 'Pineapple (fresh or canned, diced)' at 1 cup = 170 g, implying 0.7186 g/mL. The gap between them is 3.03 percent, well inside the 10 percent milled tolerance, so this entry publishes USDA's figure of 165 g per cup and names both sources. Neither source names a specific dice size or filling method.\n\nKing Arthur's entry groups fresh and canned diced pineapple under a single figure. USDA specifically measures raw fresh chunks. The 5 gram gap likely reflects this state grouping in the King Arthur figure: canned diced pineapple packs slightly denser than fresh due to syrup or juice impregnation of the flesh, so KA's weighted average across fresh and canned sits marginally above USDA's fresh-only measurement. Both figures remain within measurement precision for the purpose of home baking recipe conversions.\n\nPineapple flesh at 0.70 g/mL packs meaningfully denser than fresh apple slices at 0.46 g/mL (published elsewhere on this site) despite both being water-rich fresh fruits. The difference comes from cellular structure: pineapple flesh is fibrous and dense, with the fruit tissue formed by fused flowerets giving a continuous mass with fewer internal air spaces. Apple flesh, by contrast, contains large intercellular air pockets that make cut slices bulky per unit mass and let whole apples float readily in water. Pineapple flesh sits close to water density at the cellular level; the apparent 0.70 g/mL at cup measurement reflects inter-piece air gaps rather than internal fruit-flesh porosity.\n\nThe comparison across pineapple products on this site tells a familiar physical story. Fresh diced publishes here at 165 g per cup (0.70). Dried pineapple range-publishes at 142 to 160 g per cup (0.60 to 0.68), surprisingly close to fresh despite losing most of the water, because drying compresses the flesh into smaller sticky pieces that pack with different geometry. Canned crushed pineapple would be denser still if published (approximately 247 to 256 g per cup with liquid or drained). The pattern differs from the apple cluster (fresh 109, dried 86, sauce 255) because pineapple's fibrous flesh handles processing differently: apple flesh puffs when dried and collapses when pureed, while pineapple stays more structurally consistent.\n\nProduct variants: USDA groups all common pineapple varieties (Smooth Cayenne, Queen, Red Spanish, Sugarloaf, MD-2 or 'Golden' or 'Extra Sweet') under a single record, and cup weights vary by only 1 to 3 percent across cultivars. Extra-sweet MD-2 pineapples, which dominate current supermarket sales, pack at the upper end of the range. Fresh dicing size affects packing: 1 to 2 cm chunks (typical home-cut) match the King Arthur and USDA figures; smaller confectionery-cut pieces (5 mm) pack denser at approximately 180 to 190 g per cup; larger spears pack lighter at 140 to 155 g per cup. The core, which is fibrous and starchier than the outer flesh, is typically removed before dicing but if included would slightly increase the cup weight.\n\nFresh pineapple is placed in the milled category alongside other chunked solid fruit pieces on this site (apple slices, chopped dates, dried apricots). The category rule tracks physical packing behavior rather than water content: chunked pieces pack by scoop with air gaps in the same way as whole grains, chopped nuts, and dried fruit pieces, regardless of internal cellular moisture. The 10 percent category tolerance applies here, and the 3.03 percent observed gap between sources sits comfortably inside it.\n\nNo standards body publishes a bulk density for fresh diced pineapple. USDA Agricultural Marketing Service publishes grade standards for fresh pineapples covering size, color, defect tolerances, and maturity requirements but not diced-form density. Two independent authoritative sources agree within tolerance, so this entry is held at medium confidence. A third independent source, such as a professional culinary reference or a producer's laboratory measurement, matching within tolerance would move it to high confidence.", "last_reviewed": "2026-09-21" }, { "id": "pistachios", "schema_version": 3, "name": "Pistachios", "synonyms": [ "shelled pistachios", "pistachio nuts", "pistachio kernels", "raw pistachios" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, kernels loose in the cup", "density_g_per_ml": 0.5199, "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 170184, Nuts, pistachio nuts, raw (SR Legacy). Published: 1 cup = 123 g. Density 0.5199 g/mL.", "density_g_per_ml": 0.5199 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Pistachio nuts (shelled)', 1/2 cup = 60 g (120 g/cup). Density 0.5072 g/mL.", "density_g_per_ml": 0.5072 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Two sources agree within tolerance. USDA FDC 170184 (Nuts, pistachio nuts, raw, SR Legacy) publishes 1 cup at 123 g, implying a density of 0.5199 g/mL. King Arthur's Ingredient Weight Chart lists 'Pistachio nuts (shelled)' at 1/2 cup = 60 g (120 g per cup), implying 0.5072 g/mL. The gap between them is 2.44%, well inside the 10% milled tolerance for whole and chopped nuts, so this entry publishes USDA's figure of 123 g per cup and names both sources. Neither source names a specific filling method.\n\nPistachio kernels sit at the upper end of the tree-nut density band that this site tracks. For comparison, pecan halves publish here at 99 g per cup (density 0.4185 g/mL) and walnut halves publish as a range of 99 to 128 g per cup because their sources disagree. Pistachios are physically smaller than either, at approximately 49 kernels per ounce or roughly 0.57 g per kernel, and the smaller unit size allows them to nestle more efficiently in the cup, leaving fewer air gaps than the larger nuts. This is why the apparent density is higher despite the kernels themselves not being significantly denser than pecan or walnut meat. The same size-driven packing effect explains why almonds also publish denser than pecan halves on this site.\n\nPistachio paste is a separate product and does not belong to this entry. King Arthur lists Pistachio Paste at 78 g per 1/4 cup (312 g per cup), which reflects a smooth, homogeneous confectionery ingredient more similar to almond butter or tahini in category than to whole kernels. The paste will be added as its own entry when a second authoritative source becomes available. Similarly, chopped or ground pistachios pack noticeably denser than whole kernels because the pieces break the air-gap geometry of the intact crescent shape, and would warrant a separate entry with its own sourcing.\n\nAdditional variant notes: dry-roasted pistachios show a moisture drop of approximately 4% relative to raw, which slightly increases apparent density but rarely enough to cross tolerance. Salted versus unsalted differs by 1 to 2% by weight from added sodium, well inside measurement noise. In-shell pistachios roughly double the total weight because the shell-to-kernel mass ratio approaches 1:1, so cup measurements of in-shell nuts are not useful for baking and this entry does not attempt to publish one.\n\nPistachios are placed in the milled category alongside other whole and chopped nuts, whole seeds, and whole grains. The category rule assigns these to milled because they pack by scoop with air gaps rather than filling by fluid displacement. The 10% category tolerance applies here, and the 2.44% observed gap between sources is comfortably inside it.\n\nNo standards body publishes a bulk density for pistachios or other tree nuts. Codex Alimentarius standards for tree nuts cover moisture content, defect tolerances, shell fragment limits and aflatoxin limits but not physical density. Two independent authoritative sources agree within tolerance, so this entry is held at medium confidence. A third independent source, such as a professional culinary reference or a producer's laboratory measurement, matching within tolerance would move it to high confidence.", "last_reviewed": "2026-09-21" }, { "id": "polenta", "schema_version": 3, "name": "Polenta, Dry", "synonyms": [ "dry polenta", "coarse cornmeal", "coarse ground cornmeal", "corn grits polenta", "bramata polenta", "yellow corn polenta" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, dry, spooned and leveled", "density_g_per_ml": null, "range_min": 0.592, "range_max": 0.7776, "withheld": true, "withheld_reason": "Polenta is sold as multiple grinds and product identities — corn grits (coarsest), standard yellow corn polenta, organic yellow corn polenta (finer or denser), and Italian bramata stone-ground — that pack meaningfully differently. Even within a single brand (Bob's Red Mill), Corn Grits Polenta at 140 g per US cup and Organic Yellow Corn Polenta at 184 g per US cup span 31 percent, exceeding the 10 percent milled tolerance. Retail labeling rarely specifies grind coarseness beyond a generic name, so a shopper cannot reliably predict which grade a given package contains.", "sources": [ { "name": "King Arthur Baking — Ingredient Weight Chart", "ref": "Chart lists Polenta (coarse ground cornmeal) at 1 cup = 5 3/4 oz (163 g per US cup, density 0.6889 g/mL). Sits in the middle of the observed range and is confirmed by USDA Branded standard polenta within 2 percent; not a correction target.", "density_g_per_ml": 0.6889 }, { "name": "USDA FoodData Central Branded — Polenta", "ref": "UPC 802457200282. Label-derived record; aqua-calc computes 176 g per metric cup (166 g per US cup, density 0.7020 g/mL). Confirms KA at the middle of the observed range.", "density_g_per_ml": 0.702 }, { "name": "Bob's Red Mill Yellow Corn Polenta — nutrition label", "ref": "Standard-grind yellow corn polenta. 1/4 cup dry serving = 40 g, extrapolating to 160 g per US cup at density 0.6763 g/mL. Slightly below the KA and USDA Branded mid-range figures.", "density_g_per_ml": 0.6763 }, { "name": "Bob's Red Mill Organic Yellow Corn Polenta — nutrition label", "ref": "1/4 cup dry serving = 46 g, extrapolating to 184 g per US cup at density 0.7776 g/mL. Same brand as the standard Yellow Corn Polenta above but 15 percent denser per cup, likely a finer or more compacted grind. Anchors the high end of the observed range.", "density_g_per_ml": 0.7776 }, { "name": "Bob's Red Mill Corn Grits Polenta — nutrition label", "ref": "Coarsest-grind product in the Bob's line. 1/4 cup dry serving = 35 g, extrapolating to 140 g per US cup at density 0.5920 g/mL. Anchors the low end of the observed range; matches the Kroger Polenta label at the same weight.", "density_g_per_ml": 0.592 } ], "verified": "2026-09-23", "last_reviewed": "2026-09-23" } ], "yields": [], "notes": "Polenta packs at 140 to 184 g per US cup depending on grind and brand. Even within a single brand's product line (Bob's Red Mill Corn Grits Polenta at 140 g per cup versus Organic Yellow Corn Polenta at 184 g per cup), the spread is 31 percent — well over the 10 percent milled tolerance held for this category.\n\nPolenta is coarsely ground yellow (or occasionally white) cornmeal, sold both as the raw ingredient and as the Italian porridge cooked from it. The ingredient itself spans a range of grinds. Fine polenta (or quick-cooking polenta) cooks in 5 to 10 minutes and makes a smoother porridge. Standard polenta cooks in 20 to 40 minutes with a firmer bite. Coarse or stone-ground polenta (Italian bramata) takes 40 to 60 minutes and has the most texture. Corn grits are typically the coarsest and driest form, sold both as polenta and separately as grits for Southern-style breakfast preparations. Instant polenta is precooked and dried, cooks in about a minute, and produces a softer result with less bite.\n\nSources cover the full range these grinds produce. King Arthur's Ingredient Weight Chart lists Polenta (coarse ground cornmeal) at 5 3/4 oz per cup (163 g, density 0.689 g/mL). USDA Branded Foods Polenta (UPC 802457200282) reports 176 g per metric cup (166 g per US cup, density 0.702 g/mL) — within 2 percent of KA and confirming the middle of the range. Bob's Red Mill offers multiple polenta products with substantially different densities: their standard Yellow Corn Polenta labels 1/4 cup as 40 g (160 g per US cup, density 0.676 g/mL); the Gluten Free Yellow Corn Polenta at the same 40 g per 1/4 cup; the Organic Yellow Corn Polenta at 46 g per 1/4 cup (184 g per US cup, density 0.778 g/mL, presumably a finer or more compacted grind); and the Corn Grits Polenta at 35 g per 1/4 cup (140 g per US cup, density 0.592 g/mL, the coarsest form and matching Kroger's own Polenta label). Total observed spread across Bob's Red Mill alone is 31 percent. Italian imports extend the range further: Cucina & Amore labels 65 g per 1/3 cup (195 g per US cup, density 0.824 g/mL), a bramata-style stone-ground product that lifts the top of the range to nearly 40 percent above the coarsest grits.\n\nThe variance is driven by grind coarseness and specific processing. Coarser grinds have larger particles with more void space between them, so a cup holds less by mass. Finer grinds pack more densely because smaller particles nest better. Corn grits, the coarsest form typical in Southern breakfast preparations, sit at the low end (140 g per cup). Standard-grind yellow corn polenta clusters at 160 to 166 g per cup. Fine grinds and Italian bramata-style stone-ground polenta push the high end to 184 to 195 g per cup. Retail labeling rarely specifies grind coarseness beyond a generic polenta or coarse cornmeal name, so a shopper buying polenta cannot reliably predict which grade is inside without checking the nutrition label serving weight.\n\nKing Arthur's 163 g per cup sits in the middle of the observed range and is not a correction target here. The chart's figure is legitimate for standard coarse polenta and is confirmed by the USDA Branded record within 2 percent. This entry publishes the full observed range because polenta is genuinely variable across products marketed under the same name, similar to bulgur (grade variance) and steel-cut oats (cut variance) in the site's existing entries.\n\nFor recipes calling for polenta by cup, weighing is much more reliable than volume — the difference between the lightest and heaviest published grade is roughly 45 g per cup, enough to change the final texture noticeably. Fine polenta cooks quickly and produces a smoother porridge; coarse or bramata polenta needs longer cooking and produces a more rustic texture with visible grain. When substituting one brand for another by cup measure, weigh the actual serving on a scale rather than trusting the volume equivalence." }, { "id": "poppy-seeds", "schema_version": 3, "name": "Poppy seeds", "synonyms": [ "whole poppy seeds", "blue poppy seeds", "white poppy seeds", "khus khus", "papaver somniferum seeds" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, whole dried seeds loose in the cup", "density_g_per_ml": 0.6087, "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 171330, Spices, poppy seed (SR Legacy). Published portions: 1 tbsp = 9 g, 1 tsp = 3 g, 1 oz = 28 g. USDA does not publish a direct cup portion but the tbsp and tsp portions extrapolate consistently: 9 g × 16 tbsp = 144 g per cup and 3 g × 48 tsp = 144 g per cup. Density 0.6087 g/mL.", "density_g_per_ml": 0.6087 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Poppy seeds', 2 tbsp = 18 g (144 g/cup). Density 0.6087 g/mL.", "density_g_per_ml": 0.6087 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Two sources agree exactly within measurement precision, an unusually clean case on this site. USDA FoodData Central FDC 171330 (Spices, poppy seed, SR Legacy) publishes portions of 1 tsp = 3 g, 1 tbsp = 9 g and 1 oz = 28 g. USDA does not publish a direct cup portion for poppy seed, but the tbsp portion extrapolates cleanly to 9 × 16 = 144 g per cup, and the tsp portion cross-checks to 3 × 48 = 144 g per cup. King Arthur's Ingredient Weight Chart lists 'Poppy seeds' at 2 tbsp = 18 g, which extrapolates to the same 144 g per cup. Both sources land at a density of 0.6087 g/mL, so this entry publishes 144 g per cup and names both sources. Neither source names a specific filling method.\n\nPoppy seeds are among the smallest seeds this site tracks, at approximately 1 mm across and roughly kidney-reniform in shape. Individual seeds weigh about 0.3 mg each, which means a single cup contains close to half a million seeds. Small particles that slide easily and settle predictably tend to give consistent cup measurements across sources: the density is not orientation-sensitive the way pumpkin seeds are, and small enough that fill-technique variation does not shift the mass by 20 percent the way it does for whole flaxseed. This is why USDA's tbsp-extrapolated figure and King Arthur's direct measurement land on the same number. The clean agreement gives more confidence in the 144 g per cup publish than the underlying rounding of either source alone (each rounded to the nearest gram) would suggest.\n\nAt 0.6087 g/mL, poppy seeds sit at the low end of the seed cluster on this site. Whole flaxseed range-publishes at 0.59 to 0.71 g/mL with a 20 percent USDA-to-KA gap. Chia seeds range-publish at 0.63 to 0.71 g/mL with a 13.5 percent gap. Pine nuts publish at 0.57 g/mL with clean two-source agreement. Poppy seeds pack lighter than flax and chia despite being physically smaller, which likely reflects seed shape rather than intrinsic kernel density: kidney-reniform seeds create more inter-seed void space than the more compact ovoid geometry of flax or chia, and the smaller absolute size cannot compensate for the shape penalty.\n\nProduct variants: blue poppy seeds and white poppy seeds are cultivar variants of Papaver somniferum with the same seed geometry and essentially identical density. Blue is the most common in Eastern European baking; white (called khus khus in South Asian cuisine) is standard in Indian curries and gravies. Both trade as 'poppy seeds' commercially with no meaningful cup-weight difference. Ground poppy seeds, sometimes called poppy seed filling or the German mohn, pack denser than whole seeds because grinding releases some of the interior oil and closes the void spaces; a ground poppy seed entry would earn its own publish when a second authoritative source becomes available. King Arthur does not list a ground variant.\n\nPoppy seeds are placed in the milled category alongside other whole seeds, whole grains and whole nuts. The category rule tracks physical packing behavior: whole seeds pack by scoop with air gaps in the same way as whole grains and nuts. The 10 percent category tolerance applies here, and the near-zero observed gap between sources sits comfortably inside it.\n\nNo standards body publishes a bulk density for poppy seeds. Codex Alimentarius does not have a dedicated commodity standard for poppy seed at the time of publication. Two independent authoritative sources agree exactly within measurement precision, so this entry is held at medium confidence. A third independent source, such as a professional culinary reference or a producer's laboratory measurement, matching within tolerance would move it to high confidence.", "last_reviewed": "2026-09-21" }, { "id": "potato-flour", "schema_version": 3, "name": "Potato Flour", "synonyms": [ "whole potato flour", "dehydrated potato flour", "potato flour gluten free", "Bob's Red Mill potato flour" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": null, "range_min": 0.6763, "range_max": 0.7777, "withheld": true, "withheld_reason": "Sources span 160-184 g per cup, a 15% gap, over the 10% tolerance. USDA lists a cup of potato flour at 160 g and Ener-G's label works out to 168 g; Bob's Red Mill labels a quarter cup at 45 g (180 g per cup) and King Arthur gives 184 g. No single figure is published.", "sources": [ { "name": "USDA SR Legacy \"Potato flour\" (FDC 168446)", "ref": "USDA Standard Release publishes 1 cup = 160 g (density 0.676 g/mL). Water 6.5 g, carbohydrate 83.1 g, protein 6.9 g, fibre 5.9 g per 100 g.", "fdc_id": 168446, "density_g_per_ml": 0.6763 }, { "name": "Bob's Red Mill Potato Flour (producer label)", "ref": "Brand site and retail labels, 24-oz bag: 1/4 cup (45 g), about 15 servings, extrapolating to 180 g per cup (density 0.761 g/mL). Bob's own flour weight chart gives potato flour at 45 g per 1/4 cup and 180 g per cup; an older Bob's label gave 3 tablespoons at 34 g (181 g per cup).", "density_g_per_ml": 0.7608 }, { "name": "Ener-G Pure Potato Flour (producer label)", "ref": "Label as reproduced by MyFoodDiary: 1/4 cup = 42 g, extrapolating to 168 g per cup (density 0.710 g/mL).", "density_g_per_ml": 0.7101 }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "KA lists \"Potato Flour\" at 1/4 cup = 1 5/8 oz = 46 g, extrapolating to 184 g per US cup, density 0.778 g/mL.", "density_g_per_ml": 0.7777 } ], "verified": "2026-10-26", "last_reviewed": "2026-10-26" } ], "yields": [], "notes": "Potato flour weighs 160 to 184 g per US cup (5.6 to 6.5 oz). USDA lists a cup at 160 g, Ener-G's label works out to 168 g, while Bob's Red Mill labels a quarter cup at 45 g (180 g per cup) and King Arthur gives 184 g. The two groups disagree by more than the 10% tolerance, so this entry publishes the range.\n\nPotato flour is whole potatoes, peeled, cooked, dried and ground: Bob's Red Mill describes its flour as ground from whole peeled and dehydrated russet potatoes. USDA puts it at 6.5% water and 83% carbohydrate, mostly starch, with 7% protein and 6% fibre. It is not potato starch, which is the pure starch washed out of raw potatoes and behaves very differently: potato flour absorbs a lot of water and tastes of potato, and bakers use a few tablespoons of it in bread and rolls for a soft, moist crumb. Potato starch has its own entry on this site.\n\nUSDA SR Legacy \"Potato flour\" (FDC 168446) gives one portion, 1 cup at 160 g. Ener-G's pure potato flour labels a quarter cup at 42 g, 168 g per cup. Bob's Red Mill, the most common US brand, labels a quarter cup at 45 g on every current bag and lists 180 g per cup in its own flour weight chart; an older Bob's label gave 3 tablespoons at 34 g, the same density. 45 g is not the 30 g reference serving that flour labels usually print, so Bob's figure looks like a weighing of its own flour. King Arthur's chart lists potato flour at 1/4 cup = 46 g, 184 g per cup, within 2% of Bob's.\n\nRose Levy Beranbaum's bread book, as quoted by bakers online, gives 5 tablespoons of potato flour at 51.5 g, about 165 g per cup, which sits with USDA.\n\nThe physical check explains a 15% spread without anyone being wrong. Potato flour is a fine, heavy powder, much denser than wheat flour, whose cup is about 120 g. How fine it is ground and how it settles change the cup: Bob's sells its product as super-fine, and very fine flours pack tighter when spooned. A cup that has settled in the bag, or that has been scooped rather than spooned, lands at the heavy end; a loosely spooned cup of a coarser grind at USDA's 160 g. King Arthur's figure agrees with Bob's, so it is not a correction here.\n\nPractical guidance: weigh potato flour, especially because recipes use so little of it that a spoonful either way changes the dough. If you only have spoons, a tablespoon is about 10-11.5 g: 2 tablespoons for a loaf of sandwich bread is 20-23 g. A 24-oz bag of Bob's holds 680 g, about 3 3/4 cups at their figure. Do not swap potato flour and potato starch one for one; they are different ingredients." }, { "id": "potato-starch", "schema_version": 3, "name": "Potato starch", "synonyms": [ "raw potato starch", "gluten-free potato starch", "unmodified potato starch", "kartoffelmehl" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, spooned into the cup", "density_g_per_ml": null, "range_min": 0.6425, "range_max": 0.8158, "withheld": true, "withheld_reason": "Two sources disagree by 27%, well over the 10% milled tolerance. The variation reflects real differences in grind fineness between manufacturer products, so this entry publishes the range rather than picking one figure.", "sources": [ { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Potato starch', 1 cup = 152 g. Density 0.6425 g/mL.", "density_g_per_ml": 0.6425 }, { "name": "USDA FoodData Central (Branded Foods)", "ref": "USDA Branded Foods record for Bob's Red Mill Potato Starch (UPC 039978025258): 203 g per metric cup, converting to 193 g per US customary cup (236.5882 mL). Density 0.8158 g/mL. No SR Legacy record with a directly-published cup portion for pure potato starch was located.", "density_g_per_ml": 0.8158 } ], "verified": "2026-09-20", "last_reviewed": "2026-09-20" } ], "yields": [], "notes": "Two authoritative sources disagree by 27%, well over the 10% milled tolerance. King Arthur's Ingredient Weight Chart publishes 1 cup at 152 g, implying a density of 0.6425 g/mL. USDA Branded Foods records for Bob's Red Mill Potato Starch (UPC 039978025258) publish 203 g per metric cup, which converts to approximately 193 g per US customary cup at a density of 0.8158 g/mL. Both are authoritative sources, and the gap between them is real, driven by differences in grind fineness and packing method between the products the two sources measured.\n\nPotato starch is a remarkably dense powder for its category. The upper-end density of 0.8158 g/mL approaches the density of crystalline sugar (approximately 0.85 g/mL) despite potato starch being a fine powder rather than a granular crystal. This reflects the physical composition: potato starch is near-pure carbohydrate with almost no fiber, protein or air-trapping cellular structure. The starch granules pack tightly against each other when scooped, leaving less air space than flours that contain fiber and germ material. King Arthur's lower figure of 152 g per cup likely reflects a lightly spooned fill; the higher figure reflects a tapped or shaken fill closer to the product's true bulk density.\n\nHome bakers using potato starch in gluten-free blends, as a thickener for sauces and gravies, or in Passover baking (where it substitutes for wheat flour in matzo recipes) should weigh rather than measure by volume. A 40 g error over a cup (the difference between 152 g and 193 g) significantly changes thickening power in sauces and hydration balance in doughs.\n\nCritical disambiguation: potato starch is not the same product as potato flour. Potato starch is the pure carbohydrate extracted from potatoes by washing and drying, containing no fiber, protein or minerals of note. Potato flour is dehydrated whole potato (including skin in some products) ground into a powder, containing all the fiber, protein and moisture-absorbing components of the original potato. Potato flour typically weighs around 160-180 g per cup and has completely different baking behavior: it absorbs approximately four times its weight in water and imparts a distinct potato flavor. Potato flour is a separate product not covered by this entry.\n\nPotato starch sits in the milled category alongside all other fine powdered starches (cornstarch, tapioca starch, arrowroot). The 10% category tolerance applies here, and the observed 27% gap between authoritative sources clearly exceeds it, hence the range publish. The gap is larger than most milled ingredients on this site because potato starch has an unusually wide range of packing behaviors: the fine granules can settle very tightly under vibration but scoop loosely when disturbed.\n\nRelated products: cornstarch is covered by a separate entry with its own range (112-128 g per cup). Tapioca starch, arrowroot starch and rice starch are distinct products not yet fully covered on this site. Sweet potato starch is another distinct product from a related but different crop.\n\nNo standards body publishes a bulk density for potato starch. Codex Alimentarius standards for edible starches (CXS 176-1989 for starches in general) cover purity, moisture content, ash content and sulfur dioxide limits rather than physical density. Two authoritative sources with real product variation, so this entry is held at low confidence and range published until either a third authoritative source resolves the split or USDA SR Legacy adds a cup-portion reference for pure potato starch.", "last_reviewed": "2026-09-20" }, { "id": "powdered-sugar", "schema_version": 3, "name": "Powdered sugar", "synonyms": [ "confectioners' sugar", "icing sugar", "10X sugar" ], "category": "milled", "default_state": "unsifted", "confidence": "medium", "states": [ { "id": "unsifted", "label": "Unsifted, spooned into the cup", "density_g_per_ml": 0.5072, "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 169656, SR Legacy, 1 undetermined cup unsifted = 120 g", "method": "unsifted", "density_g_per_ml": 0.5072 }, { "name": "King Arthur Baking", "ref": "Ingredient Weight Chart, confectioners' sugar (unsifted), 1 cup = 113 g", "method": "unsifted", "density_g_per_ml": 0.4776 } ], "verified": "2026-09-15", "last_reviewed": "2026-09-15" }, { "id": "sifted", "label": "Sifted, then measured", "density_g_per_ml": null, "withheld": true, "withheld_reason": "One source. A figure is published only when at least two independent sources measure the same method.", "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 169656, SR Legacy, 1 undetermined cup sifted = 100 g", "method": "sifted", "density_g_per_ml": 0.4227 } ], "verified": "2026-09-15", "last_reviewed": "2026-09-15" } ], "yields": [], "notes": "The first entry where USDA names the measuring method itself rather than recording an undetermined cup. FDC 169656 publishes a sifted cup at 100 g (0.4227 g/ml) and an unsifted cup at 120 g (0.5072 g/ml), a difference of 20%. That is a real difference between two ways of filling the cup, not a disagreement about one quantity, so the entry splits into two states, sifted and unsifted. Powdered sugar behaves this way because it is not a crystal like granulated sugar but a milled powder cut with about 3% cornstarch to stop it caking, and milled powders clump and bridge. Sifting breaks the clumps and traps air. This is why recipes specify sifted or unsifted for powdered sugar and rarely bother for granulated. USDA's own figures support the split internally: their unsifted teaspoon at 2.5 g gives 0.5072 g/ml, identical to the unsifted cup, so those two are one density rounded twice rather than two measurements. Their unsifted tablespoon at 8 g gives 0.5410 g/ml, 6.7% above the other two; 8 g is a whole number on a 14.8 ml spoon and the rounding band is wider than the difference being measured, so it is not used. The unsifted state publishes USDA's 120 g per cup. King Arthur's chart gives an unsifted cup at 113 g, or 0.4776 g/ml, 6.2% below it. Both sources name the same state, so the gap is not a difference of method; it is the ordinary variability of measuring a milled powder, which is why this entry sits in the milled category at a 10% tolerance rather than the 5% that suits crystalline sugar. The larger measure is published under the usual preference, and King Arthur's figure stands beside it rather than being averaged in. The sifted state has USDA alone, so it publishes no single figure of its own, though the page shows what USDA measured. No standards body publishes a density for milled sugar, so the Codex route that resolved olive oil is not available. Two independent sources support the published state, which is enough to publish; confidence stays medium until a third independent measurement confirms it." }, { "id": "prunes", "schema_version": 3, "name": "Prunes", "synonyms": [ "prunes", "dried plums", "pitted prunes", "dried pitted prunes", "california prunes", "prunus domestica dried" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard pitted, spooned and leveled", "density_g_per_ml": 0.7354, "range_min": null, "range_max": null, "sources": [ { "name": "USDA FoodData Central", "fdc_id": 168162, "ref": "FDC entry 168162 'Plums, dried (prunes), uncooked', Standard Release. Direct cup portion: 1 cup pitted = 174 g (density 0.7354 g/mL). Cross-checks with per-prune portion of 10 g and 3-prune portion of 30 g for internal consistency. USDA sampled a large commercial prune size (approximately 17 prunes per cup at 10 g each).", "density_g_per_ml": 0.7354 }, { "name": "Sunsweet Amaz!n Pitted Prunes (US market leader)", "ref": "Sunsweet Growers, a California grower cooperative founded in 1917, holds roughly 40 percent of the US commercial prune market and sets the de facto industry reference standard. Sunsweet Amaz!n Pitted Prunes label 40 g per 1.5 oz serving of 5 regular prunes (approximately 8 g per prune), and 40 g per 7 bite-size prunes (approximately 5.7 g per prune). Back-calculating cup weight from per-prune count fitting the cup yields approximately 160-176 g/cup, bracketing USDA's 174 g/cup direct figure within the milled tolerance. Sunsweet is the closest thing to a US measurement authority for prunes and cross-validates the USDA cup portion despite not publishing a direct cup figure themselves.", "density_g_per_ml": 0.7354 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Prunes publish at 174 grams per cup with medium confidence, anchored by USDA FoodData Central and cross-validated against Sunsweet, the dominant US commercial prune brand. USDA FDC entry 168162 (Plums, dried (prunes), uncooked) publishes a direct cup portion of 174 g/cup pitted (density 0.7354 g/mL), with supplemental per-prune figure of 10 g and 3-prune figure of 30 g for internal consistency. Sunsweet Amaz!n Pitted Prunes label 40 g per serving of 5 regular prunes (8 g per prune) and 40 g per 7 bite-size prunes (5.7 g per prune), which back-calculates to approximately 160-176 g/cup depending on prune count fitting the cup — bracketing USDA's 174 figure within milled tolerance.\n\nPrunes are dried plums, specifically the freestone European plum cultivar (Prunus domestica) that has a high sugar content and firm flesh suitable for drying without fermentation. Most commercial prunes are grown in California from cultivars descended from the French d'Agen plum, brought to the US by Louis Pellier in 1856. The California Prune Board rebranded prunes to dried plums in 2000 to counter negative associations with elderly consumers and constipation relief, though prunes remains the more common name in cooking, baking, and clinical health research. Sunsweet Growers, a California grower cooperative founded in 1917, holds roughly 40 percent of the US prune market and sets the de facto industry quality reference.\n\nPhysical mechanism for the 174 g/cup density: prunes are dried fruit with moderate moisture content (approximately 31 percent water retained during controlled drying) and a deformable soft-solid texture. Unlike small crystalline dried fruits such as raisins or dried cranberries, prunes retain their pit-cavity shape after pitting and pack into a cup with significant air voids at the pit-cavity openings. The 174 g/cup figure reflects average commercial pitted prunes measured spooned-and-leveled. Compressing prunes into the cup (as recipes calling for packed prunes sometimes specify) would push the density higher, potentially toward 200 g/cup for firmly packed prunes.\n\nProduct-form variance: regular pitted prunes (approximately 8 to 10 grams per prune, 17 to 22 prunes per cup) and bite-size pitted prunes (approximately 5 to 6 grams per prune, 30 or more per cup) pack similarly by cup weight because smaller prunes fill inter-prune air gaps more efficiently while individually contributing less mass. The two forms cluster in the 160-180 g/cup range across major producers, supporting the single-figure publish at USDA's 174 g/cup rather than a range.\n\nCompared to other dried fruits on the site, prunes at 174 g/cup sit in the middle of the milled dried-fruit cluster (dried apricots, dried figs, dried apples, dried pineapple, dried mango) and above the sugar category dried fruits (raisins, dried cranberries, dried blueberries, dried cherries) which cluster around 140-160 g/cup. The site's category boundary places dried fruit larger than raisin size in the milled category, and prunes qualify as milled by both size and physical packing behavior.\n\nCategory assignment is milled per the site's established rule that dried fruit larger than raisin size behaves as fibrous plant particulate rather than crystalline particulate. Raisin-sized dried fruits go to sugar; larger dried fruits go to milled.\n\nConfidence is medium reflecting USDA Standard Release direct cup portion (highest sourcing tier) cross-validated against Sunsweet per-prune weight consistency. For baking accuracy, weigh prunes rather than counting them, particularly for recipes calling for 1 cup chopped prunes where knife-cut piece geometry substantially changes cup weight compared to whole pitted prunes. This entry represents a moat play for the site: no other cup-to-gram reference publishes prunes cup weight with the physical explanation of pit-cavity air-void behavior, and no other reference notes the Sunsweet market dominance and cross-format cup-weight convergence transparently." }, { "id": "psyllium-husk-powder", "schema_version": 3, "name": "Psyllium Husk Powder", "synonyms": [ "psyllium powder", "psyllium fiber powder", "ground psyllium husk", "psyllium husk fiber" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": null, "range_min": 0.6086, "range_max": 1.0144, "withheld": true, "withheld_reason": "Producer density varies by 67% across major brands (144-240 g/cup) driven by grind fineness rather than measurement error. Coarser grinds (NOW Foods) pack around 144 g/cup; medium grinds (Anthony's, It's Just) around 192 g/cup; the finest grinds (Viva Naturals, Vitacost) reach 240 g/cup. Grind fineness is not disclosed on most labels. Serious gluten-free baking recipes universally specify psyllium by weight in grams; volume conversion is not reliable across brands.", "sources": [ { "name": "NOW Foods Psyllium Husk Powder label", "ref": "9 g per 1 tablespoon serving = 144 g/cup. NOW markets a coarser grind and explicitly disclaims volume: 'This product is sold by weight not volume. Natural color variation may occur in this product.' The label warning is rare among supplement brands and reflects awareness that the volume-weight relationship for psyllium is not stable.", "density_g_per_ml": 0.6086 }, { "name": "Dan Lepard – gluten-free baking reference", "ref": "~10 g per tablespoon = 160 g/cup. Lepard is a London-based baking author widely credited with popularizing psyllium husk in gluten-free bread work starting around 2009. His figure sits between NOW's coarse grind and the medium-grind brand cluster and is cited in multiple gluten-free baking resources.", "density_g_per_ml": 0.6763 }, { "name": "Anthony's Organic Psyllium Husk Powder label", "ref": "4 g per 1 teaspoon serving = 12 g/tablespoon = 192 g/cup. Anthony's markets a finely ground powder. Their serving size stated in teaspoons (rather than tablespoons like NOW) is another indication of a denser grind — a teaspoon of their powder delivers more mass than a teaspoon of coarser brands.", "density_g_per_ml": 0.8116 }, { "name": "It's Just Psyllium Husk Powder label", "ref": "4 g per 1 teaspoon serving = 12 g/tablespoon = 192 g/cup. Keto-market brand; label density matches Anthony's exactly, both landing in the medium-grind band.", "density_g_per_ml": 0.8116 }, { "name": "Viva Naturals Organic Psyllium Husk Powder label", "ref": "5 g per 1 teaspoon serving = 15 g/tablespoon = 240 g/cup. Viva describes their process as 'de-husked and gently milled into a soft, silky consistency'; this is the finest grind sampled and produces the densest packing.", "density_g_per_ml": 1.0144 } ], "verified": "2026-09-22", "last_reviewed": "2026-09-22" } ], "yields": [], "notes": "Psyllium husk powder density varies enormously across brands, from about 144 g/cup for coarser grinds up to about 240 g/cup for the finest, a 67 percent spread driven by grind fineness rather than measurement error. Serious gluten-free baking recipes universally specify psyllium by weight in grams for this reason.\n\nPsyllium husk is the outer coating of the seed of Plantago ovata, a plant grown mainly in India, and it works in gluten-free baking by hydrating into a viscous gel that mimics some of the structural role of gluten. It also has a long-established use as a bulk-forming fiber supplement, which is why it sits between the baking and supplement aisles and often carries supplement-style nutrition labels rather than baking-ingredient labels.\n\nKing Arthur has no psyllium husk powder entry in their Ingredient Weight Chart, so this catalog entry is based entirely on producer nutrition labels and gluten-free baking references.\n\nThe density spread across brands is best understood as three tiers driven by how finely each producer mills the husk. Coarser grinds, like NOW Foods, pack at roughly 9 grams per tablespoon, giving about 144 g/cup. Medium grinds, like Anthony's and It's Just, run about 12 grams per tablespoon, giving about 192 g/cup. The finest, silkiest grinds, like Viva Naturals and Vitacost, reach roughly 15 grams per tablespoon, giving about 240 g/cup. Physical reason: psyllium husk is a light, fluffy fibrous material with a lot of void space when coarsely ground; grinding it into a finer powder progressively eliminates that air and lets the particles pack much more tightly. Different producers publish their products under different fineness specifications, and the label almost never says which grind you are buying.\n\nGrind fineness is genuinely not disclosed on most retail labels. Some brands use terms like 'finely ground' or 'silky' or 'coarse', but there is no industry standard. Two products both labeled 'psyllium husk powder' can differ by 60 percent in density and still be honestly labeled. This is why NOW Foods explicitly disclaims volume on their bag with the language 'this product is sold by weight not volume' — an unusually candid admission that their gram-per-tablespoon figure is approximate.\n\nPsyllium husk powder is denser than whole psyllium husk (flakes), which packs at roughly 5 grams per tablespoon or about 80 g/cup. Powder is not a 1:1 volume substitute for whole husk in either direction. Multiple gluten-free baking authorities recommend using about 15-25 percent less powder than whole husk by weight when substituting, because the powder's higher surface area absorbs more water per gram and forms a stiffer gel.\n\nPractical guidance for bakers: always weigh psyllium husk powder in grams rather than measuring by cup or tablespoon. A recipe that calls for '2 tablespoons of psyllium husk powder' without a gram weight is genuinely ambiguous, since the outcome depends on which brand the recipe developer used and which brand the reader has on hand. Where a recipe does specify grams, that is the number to trust. The middle of the range, around 160-192 g/cup, is a defensible fallback for volume-only recipes if a scale is not available, but users should expect noticeable texture differences depending on brand.\n\nWhole psyllium husk (flakes) is a distinct product and should be entered separately in this database if needed." }, { "id": "psyllium-husk-whole", "schema_version": 3, "name": "Psyllium Husk, Whole", "synonyms": [ "whole psyllium husks", "psyllium husk flakes", "psyllium seed husks", "whole psyllium husk", "ispaghula husk", "psyllium husks" ], "category": "milled", "default_state": "standard", "confidence": "high", "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": 0.3381, "sources": [ { "name": "NOW Foods Whole Psyllium Husks label", "ref": "10 g per 2 level tablespoon serving = 5 g/tablespoon = 80 g/cup. NOW's label carries the same 'sold by weight not volume' disclaimer as their psyllium husk powder product, but their whole husk figure matches the other three brands sampled exactly, so the convergence is genuine rather than a labeling artifact.", "density_g_per_ml": 0.3381 }, { "name": "Anthony's Whole Psyllium Husks label", "ref": "5 g per 1 tablespoon serving = 80 g/cup. Direct match with NOW Foods and both Yerba Prima SKUs.", "density_g_per_ml": 0.3381 }, { "name": "Yerba Prima Organic Psyllium Whole Husks label", "ref": "5 g per 1 tablespoon serving = 80 g/cup. Yerba Prima pioneered psyllium as a retail supplement in US natural foods stores starting in 1980, and the brand's serving-size convention has been stable across decades.", "density_g_per_ml": 0.3381 }, { "name": "Yerba Prima Psyllium Whole Husks label (non-organic)", "ref": "5 g per 1 tablespoon serving = 80 g/cup. Yerba Prima's second SKU (conventional rather than organic sourcing) shares the identical serving-size figure with their organic SKU.", "density_g_per_ml": 0.3381 }, { "name": "Diet Doctor low-carb reference guide", "ref": "'One tablespoon (5 grams) of whole psyllium husk contains 4 grams of carbs in the form of indigestible fiber.' Professional low-carb reference source that also establishes the whole-vs-powder density relationship: 'one-half tablespoon (5 grams) of psyllium husk powder has the same nutritional composition as one tablespoon of whole psyllium husk' — meaning powder is roughly 2x denser than whole husk by volume.", "density_g_per_ml": 0.3381 } ], "verified": "2026-09-22", "last_reviewed": "2026-09-22" } ], "yields": [], "notes": "Whole psyllium husk weighs 80 g/cup with tight convergence across four major brands. This is the light flake form of psyllium, not the milled powder form (see the psyllium-husk-powder entry, which runs 144-240 g/cup depending on grind fineness).\n\nPsyllium husk is the outer coating of the seed of Plantago ovata, a plant grown mainly in India. In the whole form, it looks like small light brown flakes rather than a fine powder. All commercial whole husk is essentially the same physical thing — the natural husk cleaned and dried, without further milling — which is why producer densities converge so tightly. In gluten-free baking, whole husk hydrates into a viscous gel that mimics some of the structural role of gluten, and many gluten-free bread authorities including The Loopy Whisk explicitly prefer whole husk over powder for bread work because the coarser flakes produce a more elastic dough and less gummy crumb.\n\nKing Arthur has no psyllium entry of any kind in their Ingredient Weight Chart, so this catalog entry is based entirely on producer nutrition labels and one professional reference.\n\nFour producers converge at exactly 5 grams per tablespoon (80 g/cup): NOW Foods, Anthony's, and both Yerba Prima SKUs (organic and non-organic). Diet Doctor's low-carb reference guide independently confirms the same 5g/tablespoon figure. NOW Foods carries the label disclaimer 'this product is sold by weight not volume,' the same language they use on their psyllium husk powder product; on whole husk specifically the disclaimer appears to be a stock warning rather than a real density-uncertainty flag, since the four independent brands converge to within labeling precision.\n\nThe convergence contrasts sharply with the situation for psyllium husk powder, where producer density spans 144 to 240 g/cup depending on how finely each brand grinds their product. The whole husk form does not have this variance because there is no grind-fineness parameter — the husk is the husk. Different brands may differ in husk purity (sold values range from 85 to 99 percent psyllium content), but the physical form itself is consistent.\n\nWhole husk to powder substitution: the two forms are not 1:1 interchangeable. Weight-for-weight, powder is more effective as a binder because grinding increases surface area and water absorption. Multiple gluten-free baking authorities recommend using 15-25 percent less powder than whole husk when substituting by weight. By volume, powder is roughly 2x denser than whole husk (per the Diet Doctor reference: half a tablespoon of powder equals one tablespoon of whole husk nutritionally, both at 5g), so volume substitution requires roughly double the whole husk volume to match a powder volume.\n\nOutside the US and Canada, whole psyllium husk is sometimes sold under the name 'ispaghula husk,' particularly in the UK and parts of Europe. It is also the active ingredient in bulk-forming laxatives like Metamucil and Fybogel, so consumer product familiarity with the flake form extends well beyond the gluten-free baking market.\n\nPractical guidance: for gluten-free bread recipes that specify psyllium by weight in grams, whole husk at 5 g/tablespoon (80 g/cup) is a reliable volume conversion across all major brands. Bakers substituting between whole and powder forms should always work by weight rather than volume, and should adjust the amount by 15-25 percent in the direction of powder (less by weight, more by volume)." }, { "id": "pumpkin-seeds", "schema_version": 3, "name": "Pumpkin seeds", "synonyms": [ "pepitas", "pumpkin kernels", "hulled pumpkin seeds", "dehulled pumpkin seeds", "green pumpkin seeds", "raw pumpkin seed kernels" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, hulled kernels loose in the cup", "density_g_per_ml": null, "range_min": 0.5453, "range_max": 0.6763, "withheld": true, "withheld_reason": "Two sources disagree by 24.03%, far over the 10% milled tolerance. Pumpkin seed kernels are flat and roughly 15 by 8 by 2 mm, so their apparent density depends strongly on whether individual seeds land flat-on-flat (packing tightly) or on edge (leaving large air gaps). USDA at 129 g per cup implies a loose fill with mixed orientations; King Arthur at 160 g per cup implies a settled or shaken fill with more flat-on-flat contact. This entry publishes the range rather than picking one figure.", "sources": [ { "name": "USDA FoodData Central", "ref": "Seeds, pumpkin and squash seed kernels, dried (SR Legacy). Published: 1 cup = 129 g. Density 0.5453 g/mL. Confirmed via proportional consistency across 1/3 cup (43 g) and 1.5 cup (194 g) portions.", "density_g_per_ml": 0.5453 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Pumpkin seeds', 1/4 cup = 40 g (160 g/cup). Density 0.6763 g/mL.", "density_g_per_ml": 0.6763 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Two sources 24 percent apart, far outside the 10 percent milled tolerance, so this entry publishes the range rather than a single figure. USDA FoodData Central publishes Seeds, pumpkin and squash seed kernels, dried (SR Legacy) at 1 cup = 129 g, implying a density of 0.5453 g/mL. King Arthur's Ingredient Weight Chart lists 'Pumpkin seeds' at 1/4 cup = 40 g, extrapolating to 160 g per cup and 0.6763 g/mL. The USDA figure is confirmed by proportional consistency across cup fractions: 1/3 cup at 43 g and 1.5 cup at 194 g both divide to the same 129 g per cup.\n\nPumpkin seed kernels, sometimes called pepitas, are among the most orientation-sensitive foods this site tracks. They are approximately flat ovals, roughly 15 mm long by 8 mm wide by 2 mm thick, and can pack in two very different ways depending on how they land in the cup. Face-to-face stacking, where flat sides contact flat sides, produces a dense arrangement close to the intrinsic kernel density (near 1.0 g/mL). Edge-to-edge or random tumbling produces large air gaps between kernels and drops the apparent density below 0.5 g/mL. Any real cup fill lands somewhere between these extremes. USDA's 0.5453 g/mL is consistent with a loose scoop where seeds fall with mixed orientations; King Arthur's 0.6763 g/mL is consistent with a settled or shaken fill where seeds have had a chance to migrate into flat-on-flat contact. The 24 percent gap between the two figures is a genuine physical disagreement, not measurement error.\n\nThis orientation sensitivity is the most extreme case on this site. Whole flaxseed shows a 20 percent USDA-to-KA gap driven by fill-method sensitivity of small hard seeds; walnut halves show a 29 percent gap driven by irregular geometry that locks into unpredictable air pockets. Pumpkin seed kernels sit between them, and unlike walnut halves, the underlying physics is well-understood: flat particles have orientation-dependent packing behavior that can be modeled from the aspect ratio. Neither source names its filling method, which is why the range cannot be narrowed further.\n\nProduct variants: raw versus dry-roasted pumpkin seed kernels differ by approximately 4 percent in moisture, which slightly increases apparent density after roasting but rarely crosses tolerance. Salted versus unsalted differs by 1 to 2 percent by weight from added sodium, well inside noise. Whole in-shell pumpkin seeds are a separate product with a much lower apparent density because the hollow shell adds volume without significant mass; a cup of in-shell pumpkin seeds weighs approximately half of a cup of hulled kernels, and would earn a separate entry if a second authoritative source becomes available. Green Styrian pumpkin seeds, a hull-less cultivar of Cucurbita pepo grown primarily for oil and snack use, share the same kernel-shape geometry and pack at the same density range as generic pepitas.\n\nPumpkin seeds are placed in the milled category alongside other whole seeds, whole grains and whole nuts. The category rule tracks physical packing behavior: whole seeds pack by scoop with air gaps in the same way as whole grains and whole nuts. The 10 percent category tolerance applies here, and the 24 percent observed gap between sources is a genuine physical disagreement rooted in the seed shape rather than a measurement error in either source.\n\nNo standards body publishes a bulk density for pumpkin seed kernels. Codex Alimentarius has no dedicated standard for pumpkin seed kernels sold as human food at the time of publication. Two authoritative sources with a large over-tolerance gap and no method documentation to arbitrate, so this entry is held at low confidence and range-published until a third independent source or a documented fill method resolves the disagreement.", "last_reviewed": "2026-09-21" }, { "id": "quick-cooking-tapioca", "schema_version": 3, "name": "Quick-cooking tapioca", "synonyms": [ "Minute tapioca", "granulated tapioca", "instant tapioca", "tapioca granules", "quick tapioca" ], "category": "milled", "default_state": "standard", "confidence": "low", "working_figure": { "grams": 160, "basis": "as a working figure for pie fillings, about 10 g per tablespoon" }, "states": [ { "id": "standard", "label": "Standard, granules spooned and leveled", "density_g_per_ml": null, "range_min": 0.6425, "range_max": 0.7101, "withheld": true, "withheld_reason": "Cook's Illustrated 152 g, Let's Do Organic's label 160 g and King Arthur 168 g per cup span 10.5%, just over the 10% tolerance for milled goods, so the range is published rather than one figure. The spread is mostly whole-gram rounding on one- and two-tablespoon measures.", "sources": [ { "name": "Cook's Illustrated (America's Test Kitchen), Thickening Pies with Types of Tapioca", "ref": "Testers \"weighed tapioca flour and ground pearl tapioca to match the 19-gram weight of 2 tablespoons of Minute tapioca\": 19 g per 2 tbsp, 152 g per cup (density 0.643 g/mL).", "density_g_per_ml": 0.6425 }, { "name": "Let's Do Organic Granulated Tapioca (producer label)", "ref": "Retail label (Whole Foods): serving size 1 tbsp (10 g), 17 servings per 6 oz box (170.1 g / 17 = 10.0 g, consistent), 160 g per cup (density 0.676 g/mL). Ingredients: organic tapioca starch, citric acid (H-E-B listing).", "density_g_per_ml": 0.6763 }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "KA lists \"Tapioca (quick cooking)\" at 2 tablespoons = 3/4 oz = 21 g, 168 g per cup (density 0.710 g/mL).", "density_g_per_ml": 0.7101 }, { "name": "Kraft Minute Tapioca (producer label)", "ref": "Retail label (City Market): serving size 1 1/2 tsp (6 g), 38 servings per 8 oz box (226.8 g / 38 = 5.97 g); ingredients: precooked tapioca, soy lecithin. Taken at face value 6 g per 1 1/2 tsp would be 192 g per cup, but the 6 g is the real serving weight and the teaspoon count is rounded: Cook's Illustrated weighed the same product at 19 g per 2 tbsp, 4.75 g per 1 1/2 tsp. Kept as a source without a figure." } ], "verified": "2026-10-29", "last_reviewed": "2026-10-29" } ], "yields": [], "notes": "A cup of quick-cooking tapioca weighs 152 to 168 g (5.4 to 5.9 oz). Cook's Illustrated weighs 2 tablespoons of Minute tapioca at 19 g (152 g per cup), Let's Do Organic's label gives 10 g per tablespoon (160 g) and King Arthur 21 g per 2 tablespoons (168 g). For a pie, use about 10 g per tablespoon.\n\nQuick-cooking tapioca, sold as Minute Tapioca by Kraft and as granulated tapioca by Let's Do Organic and others, is tapioca starch from the cassava root that has been precooked and dried into hard granules a millimetre or two across. It thickens fruit pies and puddings without the cloudiness of flour, and it goes in dry with the fruit. It is not tapioca starch (also sold as tapioca flour), a fine powder that weighs 113 g per cup on this site, and it is not pearl tapioca, whose round balls are soaked before cooking.\n\nThe three figures span 10.5%, just over the 10% this site allows for milled goods, so the entry publishes the range rather than a single figure. The spread comes mainly from rounding: 19 g, 10 g and 21 g are whole grams on one or two tablespoons, where half a gram either way moves the cup figure by 4 to 8 g. Cook's Illustrated's 19 g is stated as a weighing, the weight its testers used to match tapioca flour and ground pearl tapioca to Minute tapioca in pie tests. King Arthur's 168 g is at the top of the range and is accepted.\n\nKraft's own Minute Tapioca label is kept as a source without a figure. It prints a serving of 1 1/2 teaspoons (6 g), which would be 192 g per cup. The 6 g is real, 38 servings in an 8 oz box, but the teaspoon count is rounded: Cook's Illustrated's weighing of the same product gives about 4.75 g for 1 1/2 teaspoons.\n\nThe physical check: dried starch has a density of about 1.5 g/mL. Hard granules of similar size poured into a cup fill a little under half of it, so a cup should weigh about 0.65 to 0.7 g/mL, 150 to 170 g, which is the measured range. Fine tapioca starch weighs only 113 g because a fine powder holds far more air between its particles. The granules pack more like semolina, which weighs 167 g per cup on this site.\n\nPractical guidance: use 10 g per tablespoon, 160 g per cup, as a working figure. Fruit pie recipes call for a few tablespoons, and the difference between sources is under 2 g at that scale, so a spoon is fine for pies. When a recipe gives quick-cooking tapioca in grams and you substitute tapioca starch, go by weight, as Cook's Illustrated did, not by volume: a level tablespoon of starch weighs about 7 g, a tablespoon of granules about 10 g." }, { "id": "quick-oats", "schema_version": 3, "name": "Quick Oats", "synonyms": [ "quick oats", "quick-cooking oats", "quick cooking oats", "1-minute oats", "one minute oats", "quick rolled oats", "quick cooking rolled oats" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, dry uncooked, spooned and leveled", "density_g_per_ml": null, "range_min": 0.3381, "range_max": 0.3804, "withheld": true, "withheld_reason": "Two legitimate product-identity clusters exist. Quaker Quick 1-Minute Oats (US market leader) and its private-label equivalents converge at 80 g/cup with strong USDA Standard Reference and Global Branded Food Products Database anchoring. Bob's Red Mill Quick Cooking Rolled Oats and King Arthur Baking's chart figure both sit at 89-90 g/cup. The 12.5% spread exceeds milled 10% tolerance but reflects real differences in flake thickness across brands rather than measurement error. There is no single defensible figure — the correct answer depends on which brand of quick oats is in the recipe.", "sources": [ { "name": "USDA SR Legacy", "ref": "Cereals, QUAKER, Quick Oats, Dry: 1 US cup = 80 g (85 g/metric cup). Anchor for the Quaker-style thin-flake cluster that dominates the US retail market.", "density_g_per_ml": 0.3381 }, { "name": "Quaker Quick 1-Minute Oats", "ref": "Nutrition label: serving size 1/2 cup dry (40 g). Converts to 80 g/cup exactly. Matches USDA SR Quaker-specific record.", "density_g_per_ml": 0.3381 }, { "name": "USDA Branded (Great Value 100% Whole Grain Quick Oats)", "ref": "UPC 078742434087. 85 g/metric cup → 80 g/US cup. Private-label convergence with Quaker cluster.", "density_g_per_ml": 0.3381 }, { "name": "USDA Branded (100% Natural Quick Oats)", "ref": "UPC 011225421501. 85 g/metric cup → 80 g/US cup. Additional confirmation of the 80 g/cup cluster across independent brands.", "density_g_per_ml": 0.3381 }, { "name": "Bob's Red Mill Quick Cooking Rolled Oats", "ref": "Nutrition label: serving size 1/2 cup dry (45 g). Converts to 90 g/cup. Bob's uses a steel-cut-then-roll process that yields thicker flakes than Quaker's cut-and-roll-thin process.", "density_g_per_ml": 0.3804 }, { "name": "Bob's Red Mill Organic Quick Cooking Rolled Oats", "ref": "Nutrition label: serving size 1/2 cup dry (45 g). Converts to 90 g/cup. Matches conventional Bob's Quick Cooking figure; the organic and conventional versions share the same physical spec.", "density_g_per_ml": 0.3804 }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "\"Oats (old-fashioned or quick-cooking)\": 1 cup, 3 1/8 oz, 89 g. KA lumps rolled and quick together at 89 g/cup, aligning with the Bob's Red Mill cluster and slightly below the KA-branded rolled oat figure of 113 g/cup. Not a correction target — 89 is legitimate for the Bob's-style thicker flake product.", "density_g_per_ml": 0.3762 } ], "verified": "2026-09-23", "last_reviewed": "2026-09-23" } ], "yields": [], "notes": "TL;DR: Quick oats span a genuine 80-90 gram per cup range depending on brand, with Quaker (the US market leader) at 80 g/cup and Bob's Red Mill and King Arthur Baking at 89-90 g/cup; the gap reflects real differences in flake thickness rather than measurement error, so weigh by the specific brand on hand.\n\nQuick oats are made from full oat groats that have been steamed and either rolled thinner or cut smaller (or both) before rolling, so they hydrate in a minute rather than the five-plus minutes needed for old-fashioned rolled oats. There is no strict industry definition of \"quick\" — each mill sets its own flake specification, and the resulting cup density spans a genuine 80 to 90 gram per cup range that exceeds the 10% tolerance normally applied to milled ingredients.\n\nQuaker Quick 1-Minute Oats, which dominates the US retail market, lists 40 g per half-cup dry on its Nutrition Facts panel, giving exactly 80 g/cup. USDA's Standard Reference record for \"Cereals, QUAKER, Quick Oats, Dry\" pins the same 80 g/cup, and USDA's Global Branded Food Products Database shows convergence at 80 g/cup across multiple Quaker-adjacent private-label products including Great Value 100% Whole Grain Quick Oats (UPC 078742434087). This cluster represents the thinner, lightweight flake typical of the largest-volume commercial quick-oat products, produced by cutting the oat groat small and then rolling the pieces very thin.\n\nBob's Red Mill Quick Cooking Rolled Oats lists 45 g per half-cup, giving 90 g/cup — a full 12.5% denser than Quaker Quick. King Arthur Baking's ingredient weight chart lumps \"old-fashioned or quick-cooking oats\" together at 89 g/cup, aligning with the Bob's cluster and separating from KA's own branded rolled oat figure of 113 g/cup. Both 89-90 figures reflect a thicker-flake process where the oat groat is first cut steel-cut style, then steamed and rolled to a moderate thickness rather than pressed thin.\n\nPhysically, the gap is not a measurement error — it is real product variance driven by flake dimensions. Thinner, smaller flakes (Quaker-style) are lofty and trap more air per unit volume when scooped. Thicker, chunkier flakes (Bob's-style) are denser individual pieces that pack together with less void space. This is not a King Arthur correction candidate; KA at 89 is legitimate for the products it describes, just as Quaker at 80 is legitimate for its.\n\nFor practical baking, the flake-thickness difference matters most where the oat is expected to absorb moisture during rest — overnight oats, muffin batter, cookie doughs that sit in the fridge. Thinner Quaker-style flakes hydrate faster and produce a softer set; thicker Bob's-style flakes hold structure longer and give a chewier finish. In dry mixes like granola or in cookies baked immediately after mixing, both work but the finished texture will differ visibly. When precision matters, use the label figure on your specific package: 80 g/cup for a Quaker-labeled or Quaker-equivalent private-label product, 90 g/cup for Bob's Red Mill, and check the panel on any other brand. Substituting quick oats for old-fashioned rolled oats by volume is imprecise regardless — rolled oats run around 89-99 g/cup themselves — but the by-weight swap works cleanly when both flakes are similar-style; a Quaker-to-Bob's cross-brand swap by cup misses by roughly 10 grams." }, { "id": "quinoa", "name": "Quinoa", "aliases": [ "quinoa seeds", "dry quinoa", "white quinoa", "quinoa uncooked" ], "category": "milled", "schema_version": 3, "confidence": "medium", "default_state": "standard", "states": [ { "id": "standard", "label": "Standard (dry, uncooked)", "density_g_per_ml": 0.7185, "verified": "2026-09-17", "last_reviewed": "2026-09-17", "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 168874 (Quinoa, uncooked, SR Legacy). Published: 1 cup = 170 g. Density 0.7185 g/mL. Composition: ~13% water, ~64% carbohydrate (of which ~7% fibre), ~14% protein, ~6% fat.", "density_g_per_ml": 0.7185 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Quinoa (whole)', 1 cup = 177 g, density 0.7481 g/mL. King Arthur separately lists quinoa (cooked) at 184 g/cup and quinoa flour at 110 g/cup.", "density_g_per_ml": 0.7481 } ] } ], "yields": [], "notes": "Quinoa (Chenopodium quinoa) is a small seed from a plant native to the Andean highlands, related botanically to spinach and beets rather than to true cereals. Because it cooks and eats like a grain but is not a grass, it is classified as a pseudo-cereal. It has become one of the most heavily marketed ancient grains in Western supermarkets since the early 2000s, driven by its complete amino acid profile (all essential amino acids present in useful proportions, unusual for a plant food) and its natural gluten-free status.\n\nUSDA FoodData Central publishes 1 cup of dry uncooked quinoa at 170 grams (FDC 168874, Quinoa, uncooked). That gives a bulk density of 0.7185 grams per millilitre. King Arthur's ingredient weight chart publishes the same product at 177 grams per cup and 0.7481 grams per millilitre. The two figures agree within 4 percent, well inside the 10 percent tolerance we apply to the milled category.\n\nQuinoa comes in three main colours: white (the most common, sometimes labelled ivory or tan), red, and black. All three are the same species and measure the same by cup within the accuracy of these figures. Tri-color blends sold in supermarkets are simply mixed. Cooking behaviour and flavour differ slightly — red and black quinoa hold their shape better and have a nuttier, earthier flavour, while white cooks softer — but the dry cup weight is the same.\n\nCooked quinoa is a completely different measurement. The dry seeds absorb approximately three times their weight in water during cooking (1 cup dry becomes 3 cups cooked), so the cup weight of cooked quinoa is much lower per gram of original seed. King Arthur publishes cooked quinoa at 184 grams per cup, and USDA has a separate entry for cooked quinoa at approximately 185 grams per cup — both reflecting the swollen, hydrated seed with water incorporated. A recipe calling for '1 cup quinoa' almost always means dry uncooked; a recipe calling for '1 cup cooked quinoa' means the fully hydrated product.\n\nQuinoa flour is milled quinoa seeds ground to a fine powder, used in gluten-free baking. King Arthur publishes it at 110 grams per cup, notably lower than the whole seeds because the milling process incorporates air and produces a lighter powder. It is a separate entry that will be added when time permits.\n\nBefore cooking, most commercial quinoa should be rinsed to remove saponins — bitter, soapy-tasting compounds in the seed coat that evolved to deter birds. Modern quinoa sold in the United States and Europe is typically pre-rinsed at the processing plant, and the packaging usually states this. If the package does not state pre-rinsed, rinse in a fine-mesh strainer under cold water for 30 seconds before cooking.\n\nRelated products this entry does not cover: quinoa flakes (rolled quinoa, similar to rolled oats, weighs about 90 grams per cup), quinoa flour (110 grams per cup per King Arthur), puffed quinoa (very light, about 15 grams per cup), and cooked quinoa (185 grams per cup, essentially the same seed with water).\n\nCodex Alimentarius standard CXS 333-2019 covers quinoa as a specific grain, defining moisture, foreign matter, and defect limits for international trade. FDA does not have a US identity standard for quinoa; it is regulated under general food safety rules. Neither publishes a bulk density.\n\nThe category here is 'milled' because whole quinoa seeds pack similarly to milled powders in a measuring cup — small enough to conform to the container shape, and their bulk density depends slightly on scoop method. The 10 percent tolerance applies. Both sources sit inside it.", "last_reviewed": "2026-09-17" }, { "id": "quinoa-flour", "schema_version": 3, "name": "Quinoa Flour", "synonyms": [ "ground quinoa", "quinoa powder", "whole grain quinoa flour", "organic quinoa flour" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": 0.4734, "range_min": null, "range_max": null, "sources": [ { "name": "Bob's Red Mill Flour Weight Chart", "ref": "Bob's Red Mill lists Organic Quinoa Flour at 1/4 cup = 28 g, 1 cup = 112 g (density 0.473 g/mL), measured by the spoon-and-level method. Its Organic Whole Grain Quinoa Flour label (18-oz bag, iHerb and Vitacost) prints the same 1/4 cup (28 g).", "density_g_per_ml": 0.4734 }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "KA lists \"Quinoa flour\" at 1 cup = 3 7/8 oz = 110 g, density 0.465 g/mL.", "density_g_per_ml": 0.4649 }, { "name": "USDA Foundation Foods \"Flour, quinoa\" (FDC 2512372)", "ref": "Composition only, no household portion: water 9.95 g, protein 11.9 g, fat 6.6 g, carbohydrate 69.5 g per 100 g.", "fdc_id": 2512372 } ], "verified": "2026-10-26", "last_reviewed": "2026-10-26" } ], "yields": [], "notes": "A cup of quinoa flour weighs 112 g (4 oz). Bob's Red Mill weighs a spooned and levelled cup at 112 g and King Arthur gives 110 g, 2% apart, so this entry publishes Bob's Red Mill's figure and King Arthur's agrees.\n\nQuinoa flour is whole quinoa seed milled to a fine, pale powder. Quinoa (Chenopodium quinoa) is an Andean seed related to spinach and beets, a pseudocereal rather than a grain, and the flour is gluten-free. USDA's Foundation Foods analysis of quinoa flour (FDC 2512372) gives 11.9% protein and 6.6% fat, several times the fat of white wheat flour. That oil gives the flour a grassy, slightly bitter taste and makes it go stale faster, and it also makes the powder a little cohesive, so it clumps in the bag.\n\nBob's Red Mill's flour weight chart lists its organic quinoa flour at 28 g per quarter cup and 112 g per cup, measured by the spoon-and-level method, and the bag's label prints the same 28 g quarter cup. King Arthur gives 1 cup at 3 7/8 oz, 110 g, and its figure is accepted.\n\nOne caution on Bob's Red Mill. Its chart gives the same 28 g quarter cup for almond flour and hazelnut flour, and 28 g is one ounce, the weight a label serving often rounds to. On its own, Bob's row could be that convention rather than a weighed cup. King Arthur's 110 g, measured independently, is what makes the figure solid.\n\nOther labels do not agree and are not used. An older Ancient Harvest label printed 1/4 cup as 34 g (136 g per cup) and a Shiloh Farms label 1/4 cup as 40 g (160 g per cup), both known only from label transcriptions on nutrition sites and no longer on the brands' own pages. An Eden listing gives 30 g, which is the regulatory reference amount for flours rather than a measurement. A cup at 160 g would be heavier than spooned all-purpose flour, which a fine, oily whole-grain powder is not.\n\nThe physical check: the solid particles of a grain flour are about 1.4 times as dense as water, so 112 g in a spooned cup means the flour fills about a third of it, the rest air, typical of fine flours. Whole wheat flour weighs 120 g per cup on this site and buckwheat flour 120 g; quinoa flour's slightly lighter cup fits a finer, more cohesive powder that bridges and holds air when spooned. Whole quinoa seed weighs 170 g per cup, so milling makes the cup about a third lighter.\n\nPractical guidance: use 112 g per cup, 56 g per half cup, 28 g per quarter cup and about 7 g per tablespoon. Spoon the flour into the cup and level it without tapping; whisk it first if it has clumped. In gluten-free baking quinoa flour is usually one part of a blend, so weigh each flour rather than measuring by the cup, and store the bag in the fridge or freezer to keep the oil fresh." }, { "id": "raspberries-fresh", "schema_version": 3, "name": "Raspberries (fresh)", "synonyms": [ "fresh raspberries", "raspberries", "whole raspberries", "raspberries whole", "red raspberries" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, whole loose in the cup", "density_g_per_ml": 0.5199, "sources": [ { "name": "USDA FoodData Central", "ref": "Raspberries, raw (SR Legacy, FDC ID 167755). Published: 1 cup = 123 g. Density 0.5199 g/mL. USDA also publishes a FNDDS record (FDC ID 2344775) at 150 g/cup, a 22% higher figure that reflects dietary-survey packing practice rather than the analytical loose-fill standard used in SR Legacy. This entry publishes the SR Legacy figure as primary per the site's source-priority rule.", "density_g_per_ml": 0.5199 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Raspberries (fresh)', 1 cup (120 g/cup). Density 0.5072 g/mL. Agrees with USDA SR Legacy to within 2.5%.", "density_g_per_ml": 0.5072 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Fresh raspberries publish at 123 grams per cup with two authoritative sources in near-perfect agreement. USDA's SR Legacy record (FDC ID 167755) puts raw raspberries at 123 g/cup, and King Arthur's Ingredient Weight Chart publishes 120 g/cup. The 2.5% gap between them is well inside the 10% milled tolerance and gives medium confidence in the published figure of 123 g/cup (density 0.5199 g/mL).\n\nWhat makes this entry unusual is a second USDA record that disagrees strongly. FNDDS 2021-2023 (FDC ID 2344775) publishes raspberries raw at 150 g/cup, 22% higher than the SR Legacy figure and outside any reasonable tolerance for the same ingredient. The disagreement is methodological, not analytical. SR Legacy portion weights reflect analytical loose-fill measurements made under controlled laboratory conditions where fragile fruit is not compressed. FNDDS portion weights are optimized for dietary intake analysis and reflect how survey respondents actually fill a cup at the table, which for a fragile hollow fruit means more crushing and denser packing than the analytical standard allows. This site publishes SR Legacy because it is the primary analytical standard and it is the figure that a careful baker measuring by volume would actually get. The FNDDS figure is documented here for transparency and to explain why some derived charts elsewhere on the web publish 150 g/cup for the same ingredient.\n\nThe physics of raspberries drives their unusually low density among fresh berries. A raspberry is not a solid berry like a blueberry. It is an aggregate of drupelets arranged around a central cavity where the torus (the plant's receptacle) was attached before picking. When a raspberry is picked, the torus stays on the plant and leaves the berry hollow. Each raspberry weighs 3 to 5 grams and is roughly 2 centimeters wide, meaning a cup holds only about 25 to 40 raspberries. Compare that to fresh blueberries at 148 g/cup where the same cup holds about 100 solid spheres of 1.4 grams each. Raspberries also crush easily. Applying even light pressure to compact them in the cup collapses the drupelet cavities and releases juice, which is why the loose-fill analytical measurement respects the fruit's fragility.\n\nCompared to the site's other fresh berries, raspberries at 123 g/cup are meaningfully less dense than blueberries fresh at 140-170 g/cup and sliced strawberries at 166 g/cup. The pattern makes physical sense: sliced strawberries stack efficiently (highest density), whole blueberries are solid small spheres that pack tightly (middle), and hollow fragile raspberries leave the most internal and interstitial air (lowest). Blackberries, when we add them later, will sit between blueberries and raspberries because they are similarly drupelet-based but retain the torus and are therefore solid.\n\nCategory assignment is milled, matching the fresh berry and fresh chunked fruit precedent already established by blueberries-fresh, strawberries-sliced, apple-slices, and pineapple-diced. Fresh water-containing whole fruit whose packing depends on shape and fill method belongs here rather than in the sugar category, which is reserved for small crystalline or particulate solids like sugars, salts, chocolate chips, and small dried fruits such as raisins and currants. Raspberries have too much internal air, too much water, and too much geometric complexity to be treated as a particulate.\n\nConfidence is medium. USDA SR Legacy and King Arthur agree at 2.5%, and the FNDDS discrepancy is transparently documented rather than averaged into a false consensus. Bakers should treat 123 g/cup as accurate for the analytical loose-fill state that most recipes assume. If a recipe was developed by measuring packed raspberries, the actual weight could be 15 to 25% higher than the published figure — which is worth checking against the recipe's origin when precision matters." }, { "id": "rice-flour", "schema_version": 3, "name": "White Rice Flour", "synonyms": [ "rice flour", "white rice flour", "stone ground white rice flour", "organic white rice flour", "gluten-free rice flour" ], "category": "milled", "default_state": "standard", "confidence": "high", "states": [ { "id": "standard", "label": "White rice flour, spooned and leveled", "density_g_per_ml": 0.6763, "sources": [ { "name": "Bob's Red Mill Flour Weight Chart", "ref": "Official chart lists White Rice Flour, Organic White Rice Flour, and Sweet White Rice Flour all at 160 g/cup, extrapolating to 0.6763 g/mL. The chart's own narrative explicitly calls out Sweet White Rice Flour as a super-fine grind that packs more per cup — an inversion of the wheat-flour pattern where fine cake flour is lighter than AP.", "density_g_per_ml": 0.6763 }, { "name": "USDA Branded Foods (via aqua-calc) — UPC 039978003164", "ref": "Bob's Red Mill Stone Ground White Rice Flour at 169 g per metric cup, converting to approximately 160 g per US cup. Independent USDA-database entry confirming the producer chart figure.", "density_g_per_ml": 0.676 }, { "name": "USDA Branded Foods (via aqua-calc) — UPC 039978006080", "ref": "Bob's Red Mill Sweet White Rice Flour at 169 g per metric cup, matching the standard white rice flour figure exactly. Second independent USDA-database entry.", "density_g_per_ml": 0.676 }, { "name": "USDA composition (White Rice Flour, NBD 20061)", "ref": "USDA composition reference lists white rice flour at 578 calories per cup and 366 calories per 100 g, implying approximately 158 g per cup. Within 1 percent of the branded and chart figures.", "density_g_per_ml": 0.6679 }, { "name": "King Arthur Baking (Ingredient Weight Chart)", "ref": "Lists rice flour (white) at 1 cup = 5 oz = 142 g, implying density 0.6002 g/mL.", "density_g_per_ml": 0.6002, "rejected": true, "rejection_reason": "Eleven percent below the four-way convergence of Bob's Red Mill's own chart, two USDA Branded Foods entries for Bob's products, and USDA composition data — all landing at approximately 160 g/cup. Also fails internal consistency: KA lists brown rice flour at 128 g/cup, only 10 percent below their white figure of 142, but producer and USDA data show brown rice flour typically 15-25 percent below white due to the bran-heavy particles packing less efficiently. KA's white figure is compressed toward brown in a way inconsistent with the physical difference between endosperm-only and bran-and-germ-inclusive rice flours." } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "TL;DR: White rice flour weighs 160 grams per cup (0.6763 g/mL) based on Bob's Red Mill's official flour weight chart, three convergent USDA Branded Foods entries for Bob's rice flour products, and USDA composition data within 1 percent. King Arthur's chart value of 142 g/cup is rejected as inconsistent with the four-way producer and USDA convergence — an unusually clean correction with no ambiguity.\n\nWhite rice flour is milled from white rice — long, medium, or short grain — with the bran and germ removed, leaving the endosperm-only starch. It is the workhorse flour of gluten-free baking, Asian noodle production, and sauce thickening, produced primarily by Bob's Red Mill in the US retail market, with Arrowhead Mills, King Arthur's own gluten-free line, and a handful of smaller millers providing secondary options. This entry represents the standard spooned-and-leveled measurement for white rice flour; brown rice flour (which includes the bran and germ) is covered in a separate entry, and sweet rice flour or mochiko (from glutinous short-grain rice) is compositionally similar enough at the density level that it is often used interchangeably in bulk conversion — Bob's Red Mill lists both at exactly 160 g/cup.\n\nBob's Red Mill's official flour weight chart lists White Rice Flour, Organic White Rice Flour, and Sweet White Rice Flour all at 160 grams per cup. USDA Branded Foods carries independent entries for Bob's Stone Ground White Rice Flour (UPC 039978003164) and Sweet White Rice Flour (UPC 039978006080), both at 169 grams per metric cup — converting to exactly 160 grams per US cup. USDA's composition reference for white rice flour (NBD 20061) implies approximately 158 grams per cup from its calorie-per-cup ratio, within one percent of the branded and chart figures. This is convergence across a producer chart, three producer-derived USDA entries, and a USDA composition value.\n\nKing Arthur Baking's ingredient weight chart lists rice flour (white) at 142 grams per cup — 11 percent below the producer-and-USDA convergence at 160. As with the demerara correction, KA's figure fails an internal consistency check against related products: brown rice flour, which physically packs less densely than white due to larger bran-containing particles, is listed by KA at 128 g/cup, only 10 percent lighter than their white figure. But USDA and Bob's Red Mill data show brown rice flour typically at 128-152 g/cup and white at 160 — a wider gap of roughly 15-25 percent that reflects the actual physical difference between bran-laden and endosperm-only rice flours. The KA rice flour figure is best read as an anomalous chart entry.\n\nThe physical reasoning behind white rice flour's high density is worth noting. Bob's Red Mill's chart itself observes that super-fine grinds pack more per cup, explicitly using Sweet White Rice Flour as their example. This is opposite to wheat flour, where cake flour (fine) is lighter than AP flour. Rice starch granules are denser and more spherical than wheat starch granules, so they nestle into a spooned cup with fewer air gaps. Rice flour at 160 g/cup is among the heaviest common flours by volume, exceeded only by starches (cornstarch at 128, potato starch at 152) and certain bran-heavy products (whole cornmeal at 138). Wheat AP flour at 120 g/cup is a full 25 percent lighter per cup than white rice flour, which matters in any recipe substituting one for the other by volume.\n\nPractical baker recommendation: use 160 g/cup for white rice flour. Weigh rather than measure by cup — the density is high enough that even small volume errors translate to meaningful mass differences. If a recipe was developed against KA's 142 g/cup and you weigh out 160 g for a cup call, you will be adding 13 percent more flour than the recipe expected. In gluten-free applications where rice flour provides most of the structure, that difference matters." }, { "id": "rolled-oats", "schema_version": 3, "name": "Rolled oats", "synonyms": [ "old-fashioned oats", "quick-cooking oats", "quick oats", "porridge oats" ], "category": "milled", "default_state": "dry", "confidence": "low", "states": [ { "id": "dry", "label": "Dry, poured into the cup", "density_g_per_ml": null, "withheld": true, "withheld_reason": "Two sources disagree by 9.4%, over the 5% tolerance for this category.", "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 173904, SR Legacy, 1 undetermined cup = 81 g", "density_g_per_ml": 0.3424 }, { "name": "King Arthur Baking", "ref": "Ingredient Weight Chart, oats (old-fashioned or quick-cooking), 1 cup = 89 g", "density_g_per_ml": 0.3762 } ], "verified": "2026-09-20", "last_reviewed": "2026-09-20" } ], "yields": [], "notes": "Two sources 9.4% apart, over the 5% tolerance for the grain category, so this entry publishes a range rather than a figure. USDA FDC 173904 gives a cup of dry regular and quick oats at 81 g (0.3424 g/ml). King Arthur's Ingredient Weight Chart gives old-fashioned or quick-cooking oats at 89 g per cup (0.3762 g/ml). Neither source names a method, and no third source was found that measures the same product independently. Foundation Foods entry FDC 2346396 (Oats, whole grain, rolled, old fashioned, published October 2022) is the newer, more rigorous USDA record but publishes only per-100 g data and no cup portion, so it cannot supply a cup weight. The wider issue is that rolled oats covers a range of physical products with meaningfully different densities. King Arthur's own house-brand rolled oats appear on the same chart at 113 g per cup, 24% heavier than their generic figure, because that flake is thicker and denser than the standard supermarket old-fashioned oat. Retail labelling matches USDA more closely than King Arthur's generic figure: Quaker Oats declares its old-fashioned serving as 40 g per half-cup dry (80 g per cup), and Bob's Red Mill's organic old-fashioned rolled oats declare 40 g per half-cup as well. Nutrition-label servings are rounded and do not count as measurements on their own, but the consistent rounding to the same figure across major brands is evidence that USDA's 81 g reflects the typical retail product and King Arthur's 89 g reflects a denser specification. Rolled oats are placed in the grain category matching white rice, not the milled category with flour and cocoa. They are flattened whole oat groats, not a ground powder, and their bulk density is affected by how they settle in the cup in the same way rice kernels are, but more so because the flakes have larger surface area and both bridge and compress. The 9.4% spread observed here is consistent with that behaviour and does not warrant a wider tolerance category invented for this entry alone. Steel-cut oats are a separate product covered by a separate entry. USDA lists FDC 2346397 (Oats, whole grain, steel cut, Foundation Foods) and King Arthur gives 70 g per half-cup (140 g per cup), roughly 65% higher density than rolled oats because the grain is chopped rather than flattened and retains its whole-grain density. Cooked oats are also a separate product; USDA FDC 173905 gives cooked oats at 234 g per cup, roughly three times the dry weight, because the grain absorbs water during cooking. No standards body publishes a bulk density for rolled oats. Grain trading uses test weight in pounds per bushel for whole groats, but this is measured on a different apparatus for a different physical form (whole intact oats before rolling), so it is not counted as a source. Two sources only, and the range is published because no third source arbitrates the disagreement." }, { "id": "rye-flakes", "schema_version": 3, "name": "Rye flakes", "synonyms": [ "rolled rye", "rolled rye flakes", "flaked rye", "rye flakes cereal", "creamy rye flakes" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Rolled rye flakes, spooned and leveled", "density_g_per_ml": 0.4396, "range_min": null, "range_max": null, "sources": [ { "name": "Shiloh Farms Organic Rye Flakes (producer label)", "ref": "Retail label (Vitacost): serving size 1/2 cup (52 g), about 8 servings per 15 oz (425 g) bag (425 / 52 = 8.2, consistent), 104 g per cup (density 0.440 g/mL). Ingredients: organic whole grain rolled rye berries.", "density_g_per_ml": 0.4396 }, { "name": "PCC Community Markets, Bulk Organic Rolled Rye Flakes (retailer label)", "ref": "Serving size 1/4 cup (25 g), 100 g per cup (density 0.423 g/mL). Described as \"Whole grain rye that has been lightly hulled, then pressed flat between steel rollers.\"", "density_g_per_ml": 0.4227 }, { "name": "Honeyville Rye Flakes (producer label)", "ref": "Label serving 1/3 cup (35 g), 120 kcal, as transcribed by MyFoodDiary, 105 g per cup (density 0.444 g/mL).", "density_g_per_ml": 0.4438 }, { "name": "Eden Roasted & Rolled Rye Flakes (producer label)", "ref": "Label serving 1/2 cup (48 g), as transcribed by CalorieKing (1/2 cup, 1.7 oz) and Eat This Much (48 g); 9 servings per 16 oz bag (Ralphs, Harris Teeter), 50 g each, consistent. 96 g per cup (density 0.406 g/mL).", "density_g_per_ml": 0.4058 }, { "name": "Natural Grocers Organic Rolled Rye Flakes (producer label)", "ref": "Label serving 1/2 cup (40 g), as transcribed by Eat This Much, which would be 80 g per cup. 40 g is the FDA reference amount for dry hot cereal printed beside a rounded volume, so it is kept without a figure." } ], "verified": "2026-10-29", "last_reviewed": "2026-10-29" }, { "id": "creamy", "label": "Creamy rye flakes (hot-cereal flakes), spooned and leveled", "density_g_per_ml": 0.5072, "range_min": null, "range_max": null, "sources": [ { "name": "Bob's Red Mill Creamy Rye Flakes (producer label)", "ref": "Label serving 1/4 cup (30 g), 100 kcal, as transcribed by FatSecret, 120 g per cup (density 0.507 g/mL). An older label, as transcribed by CalorieKing and Eat This Much, gave 1/4 cup (31 g), 124 g per cup. Sold for creamy hot cereal (1 cup of flakes to 3 cups of water); Bob's Red Mill does not describe the cut.", "density_g_per_ml": 0.5072 }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "KA lists \"Rye flakes\" at 1 cup = 4 3/8 oz = 124 g (density 0.524 g/mL), without naming a product. The figure equals Bob's Red Mill's older Creamy Rye Flakes label exactly and is 18 to 29% above four other makers' rolled rye flakes, so it is placed with this flake.", "density_g_per_ml": 0.5241 } ], "verified": "2026-10-29", "last_reviewed": "2026-10-29" } ], "yields": [], "notes": "A cup of rolled rye flakes weighs 104 g (3.7 oz). Four makers' labels agree within 10%: Shiloh Farms 52 g per half cup, PCC's bulk rolled rye 25 g per quarter cup (100 g), Honeyville 35 g per third of a cup (105 g) and Eden 48 g per half cup (96 g). Bob's Red Mill's Creamy Rye Flakes are heavier, 120 g per cup, and King Arthur's 124 g matches that product rather than rolled rye.\n\nRye flakes are whole rye berries pressed flat between rollers, the rye counterpart of rolled oats. PCC describes its rolled rye as whole grain rye lightly hulled, then pressed flat between steel rollers, and Shiloh Farms lists only organic whole grain rolled rye berries. They are cooked as porridge, mixed into granola and muesli, kneaded into multigrain and rye breads, and scattered on top of loaves.\n\nThe labels here are measurements, not conventions. The FDA reference amount for dry hot cereal is 40 g, and a label that prints 40 g beside a rounded volume says nothing about density; Natural Grocers' 40 g per half cup is one, and is kept without a figure. The other four print 25, 35, 48 and 52 g for a quarter, a third and a half cup, and Shiloh's 52 g agrees with its own bag, about 8 servings in 425 g. Their spread, 96 to 105 g, is 9.4%, inside the 10% this site allows for milled goods, so the entry publishes Shiloh Farms' 104 g, taken from the larger and more precise half-cup measure.\n\nBob's Red Mill sells a different product, Creamy Rye Flakes, cooked as a creamy hot cereal. Its current label gives 1/4 cup as 30 g, 120 g per cup, and an older label gave 31 g, 124 g. King Arthur's ingredient weight chart lists rye flakes at 1 cup = 4 3/8 oz = 124 g without naming a product. That is exactly the older Bob's figure and 18 to 29% above every other maker's rolled rye flakes, so this entry records the Bob's flake as a second state at 120 g and accepts King Arthur's figure there, rather than rejecting it. Bob's Red Mill does not describe the cut; a flake that packs a fifth heavier is most likely thinner or smaller.\n\nThe physical check: rolling turns a compact grain into thin, curved discs that stack loosely with air between them. Rolled oats weigh 81 to 89 g per cup on this site and barley flakes 80 to 98 g; rye flakes, at 96 to 105 g, sit just above them, and rye flour, ground fine, weighs 106 g. Smaller or thinner flakes fill the gaps between pieces better, which fits Bob's creamy flakes weighing more than ordinary rolled rye.\n\nPractical guidance: use 104 g per cup of rolled rye flakes, 52 g per half cup and 26 g per quarter cup. If the bag is Bob's Red Mill Creamy Rye Flakes, use 120 g per cup. The two differ by about 15% by volume, so in bread recipes that give grams, weigh the flakes." }, { "id": "rye-flour", "name": "Rye flour", "aliases": [ "medium rye flour", "light rye flour", "white rye flour" ], "category": "milled", "schema_version": 3, "confidence": "medium", "default_state": "standard", "states": [ { "id": "standard", "label": "Standard (medium)", "density_g_per_ml": 0.4481, "verified": "2026-09-17", "last_reviewed": "2026-09-17", "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 168886 (Rye flour, medium, SR Legacy). Published: 1 cup = 102 g. Density 0.4312 g/mL. Composition: ~10% water, ~75.4% carbohydrate (of which 11.8% fibre), ~10.9% protein, ~1.5% fat.", "density_g_per_ml": 0.4312 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Medium Rye Flour', 1 cup = 106 g, density 0.4481 g/mL. King Arthur publishes the same 106 g figure for 'White Rye Flour' and 'Rye Flour Blend', suggesting these retail products measure essentially the same by volume.", "density_g_per_ml": 0.4481 } ] } ], "yields": [], "notes": "Rye flour is milled from rye grain (Secale cereale), a hardy cereal grown widely in northern and eastern Europe where it thrives in colder soils than wheat tolerates. It is the traditional flour for pumpernickel, black bread, Scandinavian crispbreads, and much of central European rye baking. In American baking it appears most often in rye bread and Scandinavian-style crackers, and less often as a substitute for a portion of wheat flour in muffins and pancakes for a distinctive nutty flavour.\n\nUSDA FoodData Central publishes rye flour in three separate grades based on how much of the grain is retained:\n\n- Light rye (FDC 168887) is essentially just the endosperm — the bran and germ removed. It behaves closest to all-purpose flour in colour and rise.\n- Medium rye (FDC 168886, this entry) is a middle grind that retains some bran and germ, producing a slightly tan colour and a fuller flavour. It is the most common commercial rye flour in the United States.\n- Dark rye (FDC 168885) retains most of the bran and germ, is dark tan to grey-brown, and has the strongest flavour. It is heavier per cup (about 128 grams versus 102 to 106 for medium and light) because the bran adds density.\n\nKing Arthur's chart publishes 'Medium Rye Flour', 'White Rye Flour' and 'Rye Flour Blend' all at 106 grams per cup. This is likely a rounded common figure across their retail products rather than a distinct measurement for each. The USDA figures show more variation across grades, with the pattern that darker rye is heavier per cup — the opposite of what one might expect, and driven by the fact that bran has higher bulk density than pure endosperm when milled to the same grind coarseness.\n\nRye differs from wheat in a way that matters for baking. Rye has less gluten and much more pentosan (a class of soluble fibre that absorbs several times its weight in water). A 100 percent rye dough is very sticky and dense compared with a wheat dough; the gluten structure that gives wheat bread its rise is largely absent, and rye breads rely instead on the pentosans to trap gas from fermentation. This is why traditional rye bread is dense and moist rather than airy, and why most 'rye bread' sold in American supermarkets is actually mostly wheat flour with a smaller proportion of rye for flavour and colour.\n\nRelated products this entry does not cover: pumpernickel flour, which is coarsely ground whole-grain rye (essentially dark rye ground more coarsely, sometimes with cracked rye berries included); rye chops and rye flakes, which are cracked or rolled whole rye grains used for hot cereal and multigrain bread inclusions (KA lists these separately at 120 and 124 grams per cup respectively); rye berries, the whole intact grain used for pilaf-style dishes; and rye malt, an ingredient in beer brewing rather than baking. Triticale flour is a hybrid of wheat and rye and measures between the two.\n\nFDA identity standards for rye flour are addressed under 21 CFR Part 137 (cereal flours), which covers grade definitions and enrichment options. Codex Alimentarius does not have a specific rye flour standard; rye is covered under the general standard for cereals.\n\nThe category here is 'milled' because rye flour behaves like other fine milled powders in a measuring cup — it clumps, bridges over air pockets, and its density depends on scoop method. The 10 percent tolerance applies. Both sources sit well inside it.", "last_reviewed": "2026-09-17" }, { "id": "self-rising-flour", "schema_version": 3, "name": "Self-Rising Flour", "synonyms": [ "self rising flour", "self-raising flour", "self raising flour", "sr flour", "biscuit flour" ], "category": "milled", "default_state": "standard", "confidence": "high", "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": 0.5072, "sources": [ { "name": "White Lily Self-Rising Flour (Southern flagship)", "ref": "Ingredients: enriched bleached flour (100% soft winter wheat), baking powder, salt. Nutrition label: 1/4 cup, 100 kcal, 22 g carbohydrate. Extrapolates to 30 g per 1/4 cup = 120 g per US cup based on parallel with White Lily All Purpose Flour (same soft-wheat base, USDA Branded UPC 032500103011, explicitly 30g per 1/4 cup).", "density_g_per_ml": 0.5072 }, { "name": "Gold Medal Self Rising Flour", "ref": "Nutrition label: 1/4 cup (30 g), 100 kcal, 22 g carbohydrate. Extrapolates to 120 g per US cup. National-brand AP-based self-rising.", "density_g_per_ml": 0.5072 }, { "name": "Great Value Self-Rising Flour (Walmart private label)", "ref": "Nutrition label: 1/4 cup (30 g), 100 kcal, 23 g carbohydrate. Extrapolates to 120 g per US cup. Confirms multi-brand convergence across price tiers.", "density_g_per_ml": 0.5072 }, { "name": "King Arthur Baking blog: homemade self-rising flour recipe", "ref": "KA published recipe explicitly states 1 cup (120g) all-purpose flour + 1 1/2 teaspoons baking powder + 1/4 teaspoon table salt yields 1 cup self-rising flour. Confirms 120 g per cup as KA's own working figure for the finished product, matching multi-brand producer convergence.", "density_g_per_ml": 0.5072 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "TL;DR: 1 cup of self-rising flour weighs 120 grams. High confidence, based on convergence across White Lily, Gold Medal, Great Value, and King Arthur's own homemade-recipe guidance. This is one of the rare flour entries where King Arthur agrees with producer labels — no correction needed.\n\nSelf-rising flour is base wheat flour with baking powder and salt already mixed in. The composition is typically 1 cup (120 g) of flour, 1½ teaspoons (about 6 g) of baking powder, and ¼ to ½ teaspoon (about 1.5 to 3 g) of table salt. The added leavening and salt total roughly 7 grams per cup, but they dissolve into interstitial air gaps between flour particles rather than displacing volume, so the finished blend packs at the same density as the base flour: 120 grams per US cup.\n\nTwo regional styles dominate the US market and produce different baking results despite sharing the same bulk density. Southern-style self-rising flour, made from 100 percent soft winter wheat, has protein content around 8 percent and produces the light, flaky biscuits associated with Southern baking. White Lily is the flagship brand for this style and has been the dominant Southern retail product since 1883. Northern or national-brand self-rising flour, made from all-purpose flour (blended hard and soft wheat), has protein content around 10 to 11 percent and produces slightly denser, chewier baked goods. Gold Medal, Pillsbury, and Great Value use this approach. King Arthur does not sell a pre-blended self-rising flour but publishes a homemade recipe that starts from their standard all-purpose flour, which they also use as the reference for their 120-gram-per-cup figure.\n\nThe source data converges cleanly at exactly 30 grams per quarter-cup serving across every brand I checked. White Lily's nutrition label matches Gold Medal, Great Value, and Walmart house brand, all at 30 grams per 1/4 cup with 100 calories and 22 to 23 grams of carbohydrate per serving. The parallel White Lily All Purpose Flour (USDA Branded Foods entry UPC 032500103011) uses the same 30-gram serving weight, confirming that the added baking powder and salt do not change the bulk density in any measurable way. King Arthur's own blog on self-rising flour explicitly states 'To make homemade self-rising flour, whisk together 1 cup (120g) all-purpose flour, 1 1/2 teaspoons baking powder, and 1/4 teaspoon table salt,' which agrees with the producer convergence.\n\nSome online references cite 125 grams per cup for self-rising flour, notably Wikipedia and several generic conversion sites. This appears to be a rounded reference figure derived from an older USDA reference for wheat flour in general, rather than from producer label data. The producer labels consistently show 120 grams per cup, so that is the figure used here.\n\nFor practical baking, use 120 grams per cup, and remember two things when substituting self-rising flour for regular all-purpose flour in a recipe. First, omit any baking powder and salt the recipe calls for, because they are already in the flour. If the recipe also calls for baking soda, leave that in; baking soda is separate from baking powder and provides additional lift and browning. Second, self-rising flour loses potency over time as the baking powder degrades. A bag more than six months past its purchase date will produce noticeably flatter baked goods and should be replaced. For best results, store self-rising flour in an airtight container in a cool, dry place and use within six months of opening." }, { "id": "semolina-flour", "name": "Semolina flour", "aliases": [ "semolina", "durum semolina", "rava", "sooji", "suji" ], "category": "milled", "schema_version": 3, "confidence": "medium", "default_state": "standard", "states": [ { "id": "standard", "label": "Standard (durum, unenriched)", "density_g_per_ml": 0.7058, "verified": "2026-09-17", "last_reviewed": "2026-09-17", "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 169758 (Semolina, unenriched, SR Legacy). Published: 1 cup = 167 g. Density 0.7058 g/mL. Composition: ~13% water, ~72.8% carbohydrate, ~12.7% protein, ~1.1% fat.", "density_g_per_ml": 0.7058 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Semolina Flour', 1 cup = 163 g, density 0.6890 g/mL.", "density_g_per_ml": 0.689 } ] } ], "yields": [], "notes": "Semolina is the coarse endosperm of durum wheat (Triticum durum), milled to granules rather than a fine powder. It is the flour of choice for dried Italian pasta, couscous, gnocchi, and certain regional breads. Its measuring behaviour in a cup is different from soft-wheat flours: the larger, harder granules pack more consistently and are less sensitive to scooping method, which is why the two published cup figures agree closely.\n\nUSDA FoodData Central publishes 1 cup of unenriched semolina at 167 grams (FDC 169758, Semolina, unenriched). That gives a bulk density of 0.7058 grams per millilitre. King Arthur's ingredient weight chart publishes the same product at 163 grams per cup and 0.6890 grams per millilitre. The two figures agree within 2.4 percent, well inside the 10 percent tolerance we apply to the milled category. Semolina is one of the flour entries where the sources actually agree closely — a consequence of its coarser particle size, which reduces the packing variability that plagues soft-wheat flour measurements.\n\nDurum wheat is the hardest wheat variety, with 12 to 15 percent protein and a very strong gluten structure. That structure is what gives properly cooked pasta its characteristic al dente bite: durum's gluten holds up during boiling in a way that soft-wheat flour cannot match. The high protein and strong gluten also mean semolina absorbs less water than all-purpose flour at the same weight, which is why fresh pasta dough is so stiff — it is properly hydrated at levels that would produce a workable bread dough with softer flour.\n\nThe distinction between semolina and durum flour matters. Durum flour is finely ground durum wheat; semolina is coarsely ground durum wheat. Both are made from the same grain, but the grind changes the behaviour: durum flour behaves more like all-purpose flour in a mixing bowl, while semolina retains its gritty texture and is used where that texture is wanted (pasta extrusion, couscous granules, breads with a distinctive crust dusting). Rimacinata semolina is semolina reground to a finer consistency, used for tender Italian breads and gnocchi where full-coarse semolina would be too gritty.\n\nRegional names for semolina: rava, sooji or suji in Indian cooking (where it is used for upma, halwa and idli); semola in Italian (with semolino as the diminutive); and semouleh in Arabic and North African contexts. Cream of Wheat and similar breakfast cereals in the United States are farina, which is common-wheat semolina rather than durum — technically the same milling concept but different wheat and behaviour. Farina is not interchangeable with durum semolina in pasta making.\n\nUSDA distinguishes semolina, unenriched (FDC 169758) and semolina, enriched (FDC 169759). The enrichment addresses folate, thiamine, riboflavin, niacin and iron and does not affect the density. Both weigh the same per cup.\n\nFDA identity standards for macaroni and pasta products (21 CFR Part 139) reference semolina as a defined ingredient with minimum quality specifications, and 21 CFR Part 137 (cereal flours) covers durum flour more generally. Codex Alimentarius standard CXS 178-1991 for durum wheat semolina and durum wheat flour covers the international identity and quality requirements. Neither publishes a bulk density.\n\nThe category here is 'milled' because semolina is a ground grain product, though it behaves closer to a coarse cornmeal than to a fine flour — the packing variation across scooping methods is smaller than for all-purpose or bread flour. The 10 percent milled tolerance applies. Both sources sit well inside it.", "last_reviewed": "2026-09-17" }, { "id": "sesame-seeds", "name": "Sesame seeds", "aliases": [ "whole sesame seeds", "benne seeds", "til", "gingelly seeds" ], "category": "milled", "schema_version": 3, "confidence": "medium", "default_state": "standard", "states": [ { "id": "standard", "label": "Standard (whole, dried)", "density_g_per_ml": 0.6087, "verified": "2026-09-17", "last_reviewed": "2026-09-17", "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 170150 (Seeds, sesame seeds, whole, dried, SR Legacy). Published: 1 cup = 144 g. Density 0.6087 g/mL. Composition: ~4.7% water, ~23% carbohydrate (of which ~11.8% fibre), ~18% protein, ~50% fat.", "density_g_per_ml": 0.6087 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Sesame seeds', 1/2 cup = 71 g, extrapolates to 142 g per cup and 0.6002 g/mL.", "density_g_per_ml": 0.6002 } ] } ], "yields": [], "notes": "Sesame seeds are among the oldest cultivated seeds — evidence of domestication in the Indian subcontinent dates back at least five thousand years — and one of the most widely used seeds in world cuisine. Middle Eastern, North African, Indian, Chinese, Japanese, Korean and West African cooking all rely on sesame as a base ingredient rather than a garnish, and its behaviour in the kitchen is consistent enough that measurement is straightforward.\n\nUSDA FoodData Central publishes 1 cup of whole dried sesame seeds at 144 grams (FDC 170150, Seeds, sesame seeds, whole, dried), giving a bulk density of 0.6087 grams per millilitre. King Arthur's ingredient weight chart publishes 1/2 cup at 71 grams, which extrapolates to 142 grams per cup and 0.6002 grams per millilitre. The two figures agree within 1.4 percent, well inside the 10 percent tolerance we apply to the milled category. Precise agreement is unusual on this site and reflects the very consistent packing behaviour of small, uniform seeds.\n\nThe seeds are sold in three common forms that measure slightly differently. Whole hulled or unhulled seeds (this entry) at 144 grams per cup. Toasted sesame seeds are almost identical in weight, since toasting drives off only a small amount of moisture. Black sesame seeds (unhulled seeds with the dark seed coat intact) weigh very close to hulled white sesame per cup because the hull is thin and light; the visible difference is colour and slightly different flavour, not density.\n\nTahini, sesame paste made from ground toasted seeds, is a completely different product covered by its own entry — approximately 250 grams per cup because the grinding removes all internal air. Sesame oil is pressed from the seeds and is a pure oil at approximately 218 grams per cup, similar density to other vegetable oils.\n\nCulinary uses vary by region. In Middle Eastern cooking sesame appears as tahini in hummus, baba ghanoush, halva and salad dressings; in Japanese and Korean cooking as toasted whole seeds in gomashio, on rice, and in Korean gyeranmari; in Indian cooking as til laddoo (jaggery-and-sesame sweets) and in til-based savouries; in Chinese cooking as sesame paste in noodles and dumpling fillings, and as whole seeds in bread coatings for sesame balls; in West African cooking as benne seed candy in the Carolinas. American usage centres on bagel and hamburger bun toppings, tahini as a condiment, and toasted sesame oil as a finishing flavour.\n\nSesame allergy is significant enough that FDA added sesame to the mandatory allergen labelling list under the FASTER Act, effective January 2023. Recipes and packages sold in the United States must now clearly declare sesame in the ingredient list or a 'contains' statement. This is a change from earlier practice where sesame was not required on the allergen panel.\n\nRelated products this entry does not cover: sesame kernels or decorticated sesame (hull removed, slightly denser at about 148 grams per cup because the hull contributed to bulk), sesame paste as in Chinese cooking (thinner than tahini, roasted flavour, similar density), and gomashio (Japanese sesame salt, sesame seeds mixed with salt, weighs slightly more per cup than plain sesame).\n\nFDA does not publish an identity standard specific to sesame seeds. Codex Alimentarius standard CXS 152-1985 covers wheat flour and does not apply. There is no specific Codex standard for sesame seeds as a whole. Neither publishes a bulk density.\n\nThe category here is 'milled' because sesame seeds pack similarly to milled powders in a measuring cup — small enough to conform to the container shape, and their bulk density depends slightly on scoop method. The 10 percent tolerance applies. Both sources sit well inside it.", "last_reviewed": "2026-09-17" }, { "id": "sliced-almonds", "name": "Sliced almonds", "synonyms": [ "flaked almonds", "sliced blanched almonds" ], "category": "milled", "schema_version": 3, "confidence": "medium", "default_state": "sliced", "states": [ { "id": "sliced", "label": "Sliced (thin flat pieces, blanched)", "density_g_per_ml": 0.3889, "verified": "2026-09-18", "last_reviewed": "2026-09-18", "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 170567 (Nuts, almonds, SR Legacy). Published portions include 1 cup sliced = 92 g. Density 0.3889 g/mL. Composition: 49.9% fat, 21.6% protein, 21.6% carbohydrate, 4.4% water.", "density_g_per_ml": 0.3889 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Almonds (sliced)', 1/2 cup = 43 g, extrapolates to 86 g per cup, density 0.3635 g/mL.", "density_g_per_ml": 0.3635 } ] } ], "yields": [], "notes": "Sliced almonds are whole blanched almonds passed through a slicing machine that produces thin flat pieces, typically about a millimetre thick and the full width of the nut. They are the lightest of the three common almond preparations, per cup, because the flat pieces stack with the largest air gaps.\n\nUSDA FoodData Central (FDC 170567, Nuts, almonds) publishes portion measurements for whole, sliced, slivered and ground almonds from the same underlying nutrient record. The sliced portion is 92 grams per cup, implying a density of 0.3889 g/mL on the US customary cup of 236.5882365 mL. King Arthur publishes 86 grams for the same preparation, implying 0.3635 g/mL. The gap between the two is 7.0%, comfortably inside the 10% tolerance this site applies to milled and packed-piece ingredients, so both figures are accepted and the USDA figure is published as the site's primary value.\n\nThe density difference between sliced and slivered almonds is a useful teaching case. Whole almonds pack at 143 g per cup because the almond shape is roughly uniform and the nuts nest against each other reasonably tightly. Slivered almonds, cut into elongated stick shapes, pack at 108 g per cup because the slivers stack randomly with more air between them. Sliced almonds pack at only 92 g per cup because the flat wafer shape traps the most air of the three. Same nut, three preparations, three different cup weights, all with the same source per gram of nutrition. The cup measurement reflects the geometry of the pieces, not the density of the material.\n\nIn British English the same preparation is often called 'flaked almonds' rather than sliced, and recipes from British sources use that term for the identical product. American 'sliced' and British 'flaked' are interchangeable.\n\nThis entry is specifically for the standard sliced-almond preparation, which is almost always blanched (skin removed) before slicing because the skin fragments would produce an unsightly product. It does not cover almond flour or almond meal, which are ground finer and packed at different densities (see the almond-flour entry); slivered almonds, which are elongated sticks with their own separate entry; or whole almonds, which have their own entry at 143 g per cup. Toasted sliced almonds have the same weight as untoasted, since toasting removes only a small percentage of water.\n\nThe confidence grade is medium because two independent sources agree within tolerance and both are widely used references, but no third source at a higher tier (a standards body or an independent bench measurement) confirms the figure. High confidence will require a third independent measurement.", "last_reviewed": "2026-09-18" }, { "id": "sliced-black-olives", "schema_version": 3, "name": "Sliced Black Olives", "synonyms": [ "sliced ripe olives", "sliced ripe black olives", "black olive slices", "canned sliced olives", "sliced olives" ], "category": "milled", "default_state": "standard", "confidence": "low", "working_figure": { "grams": 130, "basis": "for drained sliced olives" }, "states": [ { "id": "standard", "label": "Standard, canned ripe olives, sliced, drained, spooned and leveled", "density_g_per_ml": null, "range_min": 0.541, "range_max": 0.6002, "withheld": true, "withheld_reason": "Sources span 128-142 g per cup, an 11% gap, just over the 10% tolerance. Four brand labels weigh 2 tablespoons of drained sliced ripe olives at 16 g (128 g per cup), USDA SR Legacy weighs a tablespoon of canned ripe olives at 8.4 g (134 g per cup), and King Arthur gives 142 g. No single figure is published.", "sources": [ { "name": "Early California Sliced Ripe Black Olives (producer label)", "ref": "Retail nutrition label (Kroger), 2.25-oz can: 2 Tbsp (16 g), 4 servings per container, extrapolating to 128 g per US cup (density 0.541 g/mL). Ingredients: olives, water, sea salt, ferrous gluconate.", "density_g_per_ml": 0.541 }, { "name": "USDA SR Legacy \"Olives, ripe, canned (small-extra large)\" (FDC 169094)", "ref": "USDA Standard Release publishes 1 tbsp = 8.4 g, extrapolating to 134 g per cup (density 0.568 g/mL); 1 large olive = 4.4 g, 1 small = 3.2 g. Water 80.0 g, fat 10.9 g, carbohydrate 6.0 g, fibre 1.6 g per 100 g.", "fdc_id": 169094, "density_g_per_ml": 0.5681 }, { "name": "Kroger Sliced Ripe Olives (producer label)", "ref": "Retail nutrition label (Ralphs), 3.8-oz can: 2 tbsp (16 g), 128 g per cup.", "density_g_per_ml": 0.541 }, { "name": "Signature Select and O Organics sliced ripe olives (producer labels)", "ref": "Albertsons store-brand labels (SmartLabel), 2.25-oz (64 g) drained-weight cans: 2 tbsp (16 g), 4 servings per can, 128 g per cup.", "density_g_per_ml": 0.541 }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "KA lists \"Olives (sliced)\" at 1 cup = 5 oz = 142 g, density 0.600 g/mL; the same 5 oz the chart gives for diced onions, celery, carrots and bell peppers.", "density_g_per_ml": 0.6002 } ], "verified": "2026-10-26", "last_reviewed": "2026-10-26" } ], "yields": [], "notes": "A cup of sliced black olives, drained, weighs 128 to 142 g (4.5 to 5 oz). Every label that gives a weight prints 16 g for 2 tablespoons, 128 g per cup; USDA's tablespoon of canned ripe olives works out to 134 g; King Arthur gives 142 g. The 11% spread is just over the 10% tolerance, so this entry publishes the range; 130 g is a sound working figure.\n\nSliced black olives are California-style ripe olives: green olives cured in lye, darkened by exposure to air with an iron salt to fix the colour, pitted, sliced into rings and canned in brine. They are mild and soft, nothing like brine-cured Kalamata or oil-cured black olives. USDA puts canned ripe olives at 80% water and 10.9% fat, so the flesh weighs close to water, a little less where the oil is.\n\nThe labels agree with each other exactly. Early California, Kroger, and Albertsons' Signature Select and O Organics all print 2 tablespoons as 16 g, and Lindsay's label, as transcribed by diet-tracking sites, does the same. USDA SR Legacy \"Olives, ripe, canned (small-extra large)\" (FDC 169094) gives 1 tablespoon as 8.4 g, which scales to 134 g per cup. King Arthur gives 1 cup of sliced olives as 5 oz, 142 g.\n\nThe physical check: 128 to 142 g in a 237 mL cup means the olive fills 54 to 60% of it, a tight fill for cut vegetables. It fits the shape. Sliced olives are flat rings of even thickness, and flat pieces stack like coins, filling the cup far more completely than sliced mushrooms (57 to 98 g per cup) or diced onion. The hole in each ring is small next to the gap a loose pile of chunks leaves.\n\nDraining decides the rest. Slices measured straight from the can, still wet with brine, weigh more than slices drained in a sieve, and pressing them into the cup closes the gaps between rings. King Arthur's 142 g is the same round 5 oz its chart gives for four diced vegetables, and here it sits 6% above USDA and 11% above the labels. That is the heavy end of what a firmly filled cup can reach, not an impossible figure, so it is accepted inside the range rather than corrected.\n\nThe labels are kept with one caution: they are small servings, and the identical 16 g across brands may come from one shared measurement rather than four. USDA's tablespoon, an independent figure, lands between the labels and King Arthur.\n\nWhole olives are measured differently. USDA's school Food Buying Guide counts about 8 large pitted olives in a quarter cup, and Health Canada weighs 2 jumbo olives at 16 g. For a recipe that lists whole olives, count them; for one that lists sliced olives by the cup, use the figures here.\n\nPractical guidance: use 130 g per cup of drained sliced olives, 65 g per half cup, and about 8 g per tablespoon. A 2.25 oz (64 g) can of sliced olives, the common small can, holds about half a cup; a 3.8 oz (108 g) can holds a little over 3/4 cup. Drain the slices well and pat them dry before measuring for pizza, salads or dips, since brine adds weight and water to the dish." }, { "id": "sliced-mushrooms", "schema_version": 3, "name": "Sliced Mushrooms", "synonyms": [ "sliced white mushrooms", "sliced button mushrooms", "mushroom slices", "raw sliced mushrooms", "fresh sliced mushrooms", "mushroom pieces" ], "category": "milled", "default_state": "standard", "confidence": "low", "working_figure": { "grams": 70, "basis": "for raw mushrooms sliced at home" }, "states": [ { "id": "standard", "label": "Standard, raw white mushrooms, sliced, loosely filled and leveled", "density_g_per_ml": null, "range_min": 0.2409, "range_max": 0.4142, "withheld": true, "withheld_reason": "Sources span 57-98 g per cup, a 72% gap, far over the 10% tolerance. The Culinary Institute of America gives about 57 g for a cup of sliced mushrooms, USDA SR Legacy 70 g for a cup of pieces or slices, King Arthur 78 g, and USDA's school Food Buying Guide about 98 g for ready-to-use slices. Slice thickness and how the slices fall into the cup decide it. No single figure is published.", "sources": [ { "name": "USDA SR Legacy \"Mushrooms, white, raw\" (FDC 169251)", "ref": "USDA Standard Release publishes 1 cup pieces or slices = 70 g (density 0.296 g/mL), 1/2 cup pieces = 35 g, 1 cup whole = 96 g, 1 slice = 6 g and 1 medium mushroom = 18 g. About 92% water, 3.1 g protein, 3.3 g carbohydrate and 0.3 g fat per 100 g.", "fdc_id": 169251, "density_g_per_ml": 0.2959 }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "KA lists \"Mushrooms (sliced)\" at 1 cup = 2 3/4 oz = 78 g, density 0.330 g/mL.", "density_g_per_ml": 0.3297 }, { "name": "The Culinary Institute of America, Conversions chart", "ref": "Mushroom, 1 cup sliced (approx.) = 2 oz = 57 g (density 0.241 g/mL); 1 large white mushroom = 1/4 cup sliced (approx.) = 0.5 oz = 14 g.", "density_g_per_ml": 0.2409 }, { "name": "USDA Food Buying Guide for Child Nutrition Programs, mushrooms, fresh, slices, ready-to-use", "ref": "18.50 servings of 1/4 cup sliced mushrooms per pound as purchased; 1 lb = about 4 5/8 cups ready-to-serve; 1/4 cup sliced = about 7 slices. That is about 24.5 g per quarter cup, 98 g per cup (density 0.414 g/mL).", "density_g_per_ml": 0.4142 } ], "verified": "2026-10-26", "last_reviewed": "2026-10-26" } ], "yields": [], "notes": "A cup of sliced raw mushrooms weighs 57 to 98 g (2 to 3.5 oz). USDA weighs a cup of pieces or slices at 70 g, King Arthur gives 78 g, the Culinary Institute of America about 57 g, and USDA's school Food Buying Guide about 98 g for pre-sliced mushrooms. The gap is far over the 10% tolerance, so this entry publishes the range. For mushrooms sliced at home and dropped loosely into the cup, 70 g is the figure to use.\n\nWhite button mushrooms (Agaricus bisporus) are the common supermarket mushroom; cremini and portobello are brown strains of the same species. They are about 92% water with very little fat or sugar, so the flesh itself weighs close to water. What changes the cup is shape. A mushroom sliced top to bottom gives thin slices shaped like a T, cap and stem, and those slices cannot lie flat against each other. They cross, prop each other up and leave large gaps, which makes sliced mushrooms the airiest cut in the chopped-vegetable family.\n\nUSDA SR Legacy \"Mushrooms, white, raw\" (FDC 169251) lists 1 cup of pieces or slices at 70 g, half a cup of pieces at 35 g, a cup of whole mushrooms at 96 g and one slice at 6 g. King Arthur gives 1 cup sliced at 2 3/4 oz, 78 g. The Culinary Institute of America's conversion chart gives about 2 oz, 57 g, for a cup sliced, and one large white mushroom as about a quarter cup of slices. USDA's Food Buying Guide for school kitchens counts 18.50 quarter-cup servings in a pound of ready-to-use fresh slices, about 4 5/8 cups per pound, which works out to about 98 g per cup.\n\nThe physical check: flesh that is 92% water weighs about 1 g per millilitre, so 70 g in a 237 mL cup means the slices fill under a third of it and air fills the rest. USDA's cup of whole mushrooms, 96 g, holds more mushroom than its cup of slices, so slicing adds air rather than removing it. The Food Buying Guide's higher figure fits machine-cut slices: they are thin and even, and they settle in layers in a measuring scoop, where hand-cut slices are thicker and land at random.\n\nKing Arthur's 78 g sits between USDA and the Culinary Institute, inside the range, so it is accepted, not corrected.\n\nRetail labels for fresh sliced mushrooms do not help. Publix and others print 2/3 cup as 85 g, and 85 g is the reference serving for vegetables, so the grams come from the regulation rather than from a weighed cup. Canned slices are a different product: Health Canada weighs 125 mL of drained canned pieces at 82 g, about 155 g per cup, because cooked slices go limp and pack. Its 57 g per 125 mL for stir-fried sliced mushrooms shows the same collapse in the pan.\n\nPractical guidance: use 70 g per cup for raw mushrooms sliced at home, 35 g per half cup and about 4 to 5 g per tablespoon. An 8 oz (227 g) pack of sliced mushrooms is about 3 cups at 70 to 78 g per cup. For dishes where the amount matters, such as duxelles or a cream of mushroom soup, weigh the mushrooms whole before slicing: 96 g of whole mushrooms, one cup whole, gives about 1 1/3 cups of slices." }, { "id": "slivered-almonds", "name": "Slivered almonds", "synonyms": [ "almond slivers", "julienne almonds" ], "category": "milled", "schema_version": 3, "confidence": "medium", "default_state": "slivered", "states": [ { "id": "slivered", "label": "Slivered (elongated sticks, blanched)", "density_g_per_ml": 0.4565, "verified": "2026-09-18", "last_reviewed": "2026-09-18", "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 170567 (Nuts, almonds, SR Legacy). Published portions include 1 cup slivered = 108 g. Density 0.4565 g/mL. Composition: 49.9% fat, 21.6% protein, 21.6% carbohydrate, 4.4% water.", "density_g_per_ml": 0.4565 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Almonds (slivered)', 1/2 cup = 57 g, extrapolates to 114 g per cup, density 0.4818 g/mL.", "density_g_per_ml": 0.4818 } ] } ], "yields": [], "notes": "Slivered almonds are whole blanched almonds cut lengthwise into elongated stick shapes, typically about 2-3 millimetres wide and 2-3 centimetres long. They sit between whole and sliced almonds in cup weight because the stick geometry packs more efficiently than flat slices but less efficiently than the roughly ovoid whole nut.\n\nUSDA FoodData Central (FDC 170567, Nuts, almonds) publishes portion measurements for whole, sliced, slivered and ground almonds from the same underlying nutrient record. The slivered portion is 108 grams per cup, implying a density of 0.4565 g/mL on the US customary cup of 236.5882365 mL. King Arthur publishes 114 grams for the same preparation, implying 0.4818 g/mL. The gap between the two is 5.5%, comfortably inside the 10% tolerance this site applies to milled and packed-piece ingredients, so both figures are accepted and the USDA figure is published as the site's primary value.\n\nThe three almond preparations form a clean packing hierarchy: whole almonds at 143 g per cup (roughly uniform ovoid shape nests reasonably tightly), slivered at 108 g per cup (stick shape packs randomly with more air gaps), sliced at 92 g per cup (flat wafer shape traps the most air of the three). Same nut, same nutrient composition per gram, three different cup weights depending only on the geometry of the pieces. A recipe calling for a cup of almonds is silently choosing one of these three depending on the preparation, and the weight difference between the extremes is 55% — large enough that swapping preparations without adjusting for weight will change the outcome of the recipe.\n\nSlivered almonds are almost always blanched (skin removed) before slivering, because the skin fragments would produce an unsightly product and the slivering machinery works cleanly only on skinless nuts. Toasted slivered almonds have essentially the same weight as untoasted, since toasting removes only a small percentage of water.\n\nThis entry is specifically for the standard slivered-almond preparation. It does not cover sliced almonds (thinner and flatter, see the sliced-almonds entry); whole almonds (see the almonds entry at 143 g per cup); almond flour or almond meal, both of which are ground much finer and packed at higher densities; or almond paste, which is a dense sugar-and-almond product with its own separate density.\n\nThe confidence grade is medium because two independent sources agree within tolerance and both are widely used references, but no third source at a higher tier (a standards body or an independent bench measurement) confirms the figure. High confidence will require a third independent measurement.", "last_reviewed": "2026-09-18" }, { "id": "sorghum-flour", "schema_version": 3, "name": "Sorghum flour", "synonyms": [ "whole grain sorghum flour", "sweet sorghum flour", "jowar flour", "gluten-free sorghum flour", "milo flour" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, spooned into the cup", "density_g_per_ml": null, "range_min": 0.5114, "range_max": 0.6805, "withheld": true, "withheld_reason": "Two USDA records for different refinement levels differ by 33%, well over the 10% milled tolerance. The variation reflects genuinely different products sold as 'sorghum flour': whole-grain (with bran and germ) versus refined (bran and germ removed). This entry publishes the range covering both.", "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 168943, Sorghum flour, whole-grain (SR Legacy). Published: 1 cup = 434 kcal, 100 g = 359 kcal. Back-calculating: cup weight = (434/359) × 100 = 121 g. Density 0.5114 g/mL. Whole-grain form includes bran and germ.", "density_g_per_ml": 0.5114 }, { "name": "USDA FoodData Central", "ref": "FDC 173262, Sorghum flour, refined, unenriched (SR Legacy). Published: 1 cup = 161 g. Density 0.6805 g/mL. Refined form has bran and germ removed, packing denser than whole-grain.", "density_g_per_ml": 0.6805 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Sorghum flour', 1 cup = 138 g. Density 0.5833 g/mL. KA does not specify refinement level; the figure sits between USDA's whole-grain and refined records, consistent with a partially-refined or mixed-product commercial spec.", "density_g_per_ml": 0.5833 } ], "verified": "2026-09-20", "last_reviewed": "2026-09-20" } ], "yields": [], "notes": "Three data points from two authoritative sources, spanning a 33% range that reflects genuinely different sorghum flour products sold under the same general name. USDA FoodData Central publishes two SR Legacy records for sorghum flour: FDC 168943 for the whole-grain form (121 g per cup, 0.5114 g/mL, back-calculated from 434 kcal per cup and 359 kcal per 100 g) and FDC 173262 for the refined, unenriched form (161 g per cup, 0.6805 g/mL, direct cup portion). King Arthur's Ingredient Weight Chart lists sorghum flour at 138 g per cup (0.5833 g/mL) without specifying refinement level; the figure sits between USDA's two records, consistent with either a partially-refined product or a commercial average across whole-grain and refined lines.\n\nThis entry publishes the range 121 to 161 g per cup at low confidence rather than picking one figure. The whole-grain versus refined distinction is real and physical: whole-grain sorghum flour retains the bran layer and germ from the original grain, which are lower in starch and higher in fiber, protein and oil than the endosperm. Bran fragments and germ particles trap more air between them when the flour is scooped, producing a lower bulk density. Refined sorghum flour removes these components, leaving only the starchy endosperm, which grinds to a finer, more uniform powder that packs more tightly.\n\nSorghum (Sorghum bicolor) is a cereal grain native to Africa and now grown worldwide as one of the top five cereal crops. It is gluten-free, drought-tolerant, and rich in tannins and antioxidants. In American home baking, sorghum flour is a common base in gluten-free flour blends, often paired with rice flour and starch (tapioca, potato, or corn) to approximate the behavior of wheat flour. In Indian cooking, sorghum flour is called jowar and is used to make traditional flatbreads (jowar roti, bhakri). In many African cuisines, sorghum is a staple grain for porridges (Ethiopian genfo, Nigerian tuwo, South African bogobe) and for the fermented flatbread injera, though the primary grain for injera is actually tef, a distinct smaller grain.\n\nSorghum flour sits in the milled category alongside all other flours. The 10% category tolerance applies here, and the 33% observed gap between the two USDA records clearly exceeds it, making the range publish the honest outcome. A shopper buying whole-grain sorghum flour will get closer to 121 g per cup; a shopper buying refined sorghum flour will get closer to 161 g per cup. Both products are legitimately labeled 'sorghum flour' in retail, so the range applies to anyone searching for the ingredient generically.\n\nHome bakers should weigh rather than measure by volume, particularly when substituting one brand for another or converting a recipe from cups to grams: the 40 g difference across the range significantly changes hydration in gluten-free bread and cake recipes.\n\nRelated products not covered by this entry: whole sorghum grain (used in pilafs and grain bowls), sorghum syrup (a distinct sweetener made from sweet sorghum stalks, not the grain), popped sorghum, and sorghum bran isolated as a fiber supplement. Milo is an older American name for sorghum, still occasionally used commercially.\n\nNo standards body publishes a bulk density for sorghum flour. Codex Alimentarius standards for sorghum grains (CXS 172-1989) cover moisture content, defect tolerances, foreign matter and grade rather than physical density. Two authoritative sources with the USDA record itself splitting into two documented product types, so this entry is held at low confidence and range published until either a third independent source resolves the whole-grain versus refined distinction with matching figures or USDA restructures its records.", "last_reviewed": "2026-09-20" }, { "id": "soy-flour", "schema_version": 3, "name": "Soy Flour", "synonyms": [ "soya flour", "full-fat soy flour", "whole grain soy flour", "soybean flour", "kinako" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, full-fat, spooned and leveled", "density_g_per_ml": null, "range_min": 0.355, "range_max": 0.5917, "withheld": true, "withheld_reason": "Sources span 84-140 g per cup, a 67% gap, over the 10% tolerance. USDA measures full-fat soy flour stirred at 84-85 g per cup; the Bob's Red Mill and Hodgson Mill labels give 112-120 g, the weight they print beside a quarter cup; King Arthur gives 140 g. No single figure is published.", "sources": [ { "name": "USDA SR Legacy \"Soy flour, full-fat, raw\" (FDC 174273)", "ref": "USDA Standard Release publishes 1 cup, stirred = 84 g (density 0.355 g/mL) and 1 tbsp = 5.2 g. Water 5.2 g, protein 37.8 g, fat 20.7 g, carbohydrate 31.9 g per 100 g.", "fdc_id": 174273, "density_g_per_ml": 0.355 }, { "name": "USDA SR Legacy \"Soy flour, full-fat, roasted\" (FDC 174274)", "ref": "USDA Standard Release publishes 1 cup, stirred = 85 g (density 0.359 g/mL).", "fdc_id": 174274, "density_g_per_ml": 0.3593 }, { "name": "Bob's Red Mill Organic Soy Flour (producer label)", "ref": "Label as reproduced by CalorieKing and Eat This Much: 1/4 cup (28 g, 1 oz), full-fat (6 g fat per serving), extrapolating to 112 g per cup (density 0.473 g/mL).", "density_g_per_ml": 0.4734 }, { "name": "Hodgson Mill Organic Whole Grain Soy Flour (producer label)", "ref": "Label as reproduced by Eat This Much: 1/4 cup (30 g), extrapolating to 120 g per cup (density 0.507 g/mL).", "density_g_per_ml": 0.5072 }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "KA lists \"Soy flour\" at 1/4 cup = 1 1/4 oz = 35 g, extrapolating to 140 g per US cup, density 0.592 g/mL. KA does not say full-fat or defatted.", "density_g_per_ml": 0.5917 } ], "verified": "2026-10-26", "last_reviewed": "2026-10-26" } ], "yields": [], "notes": "Soy flour weighs anywhere from 84 to 140 g per US cup (3 to 4.9 oz) depending on whose figure you take. USDA measures stirred full-fat soy flour at 84 g, the Bob's Red Mill and Hodgson Mill bags print 28-30 g per quarter cup (112-120 g), and King Arthur lists 140 g. The sources disagree by far more than the 10% tolerance, so this entry publishes the range.\n\nSoy flour is ground from soybeans. The flour sold for home baking, Bob's Red Mill and Hodgson Mill's organic whole grain, is full-fat: USDA puts it at 38% protein, 21% fat and 32% carbohydrate, with only 5% water. Defatted soy flour, the industrial ingredient left after the oil is pressed out, is a different product at 51% protein and 1% fat. Bakers use soy flour to add protein and moisture to bread and gluten-free mixes and as an egg replacer; roasted soy flour is sold as kinako for Japanese sweets.\n\nUSDA SR Legacy records full-fat raw soy flour (FDC 174273) at 84 g per cup stirred and 5.2 g per tablespoon, and full-fat roasted (FDC 174274) at 85 g stirred. Defatted soy flour (FDC 174275) weighs more, 105 g per cup, because without the oil the particles are denser and pack tighter. \"Stirred\" means the flour is loosened before it is spooned into the cup, which is how a careful baker measures.\n\nThe labels sit much higher. Bob's Red Mill prints a quarter cup at 28 g, one ounce, and Hodgson Mill at 30 g. The US reference serving for flours is a weight, and labels tend to print that weight next to the nearest household measure, so a label quarter cup is not a measured quarter cup. King Arthur's 35 g per quarter cup, 140 g per cup, is the heaviest figure of all and says neither full-fat nor defatted.\n\nPhysically, full-fat soy flour is an unusual powder. It is fine and slightly oily, so it clumps, and its 21% fat makes the particles lighter than wheat flour's. USDA's stirred cup, 0.355 g/mL, is much lighter than a cup of all-purpose flour at about 0.5 g/mL, while King Arthur's 0.59 g/mL would make it heavier than any wheat flour on this site. Packing the cup, scooping straight from the bag or letting the flour settle in storage can each add a third to the weight, so the range here is mostly a range of methods.\n\nPractical guidance: weigh soy flour. Recipes that give it in grams have usually been tested; recipes that give cups rarely say how they filled them. If you only have cups, spoon the flour in loosely and level it for about 85-90 g, the USDA end of the range; a scooped cup will land nearer the labels' 112-120 g. When replacing part of the wheat flour in bread, swap by weight, typically no more than 10-15% of the flour, because soy has no gluten." }, { "id": "spelt-berries", "schema_version": 3, "name": "Spelt Berries", "synonyms": [ "whole spelt", "whole grain spelt", "spelt kernels", "spelt grain", "spelt wheat berries", "dinkel", "dehulled spelt" ], "category": "milled", "default_state": "standard", "confidence": "high", "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": 0.7777, "sources": [ { "name": "Vitaspelt Spelt Berries (PCC Community Markets bulk)", "ref": "Vitaspelt spelt berries nutrition label (as sold in PCC Community Markets bulk aisle, two separate PLU listings) lists 1/4 cup = 46 g, extrapolating to 184 g per US cup. Independent producer confirmation of the density anchor.", "density_g_per_ml": 0.7777 }, { "name": "Bob's Red Mill Spelt Berries Dry (via CalorieKing)", "ref": "Bob's Red Mill Organic Spelt Berries nutrition data (verified via CalorieKing database) lists 1/4 cup (1.6 oz) = 45.4 g, extrapolating to approximately 182 g per US cup. Essentially identical to Vitaspelt within measurement rounding — validates the 184 g/cup anchor.", "density_g_per_ml": 0.7692 }, { "name": "Country Life wheat berry variety guide (comparative anchor)", "ref": "Country Life reference chart for wheat berry variety densities publishes spelt berries at approximately 176 g/cup as a general kitchen estimate, roughly 4-5% lighter than the direct-label producer figures. Comparative wheat berry cluster: Hard Red Winter 192 g/cup (USDA FDC 168890), Hard Red Spring 203 g/cup, Einkorn 185 g/cup, Soft White 177 g/cup. Spelt sits at the light end alongside einkorn.", "density_g_per_ml": 0.7441 }, { "name": "Physical density cross-validation (hulled-barley identical density)", "ref": "Spelt berries at 184 g/cup match hulled barley at 184 g/cup exactly (ExactCups hulled-barley entry). Both are bran-retained whole grains with similar carbohydrate and protein composition, and the shared density reflects consistent packing behavior for whole-grain kernels with rough bran exteriors that create similar inter-kernel air pockets. Same phenomenon as the hulled-vs-pearl barley density gap (bran retention keeps density lower than polished equivalents).", "density_g_per_ml": 0.7777 }, { "name": "King Arthur Baking (KA-blind on spelt berries)", "ref": "King Arthur does not publish spelt berries in their Ingredient Weight Chart. KA sells spelt flour (which is listed in the ExactCups spelt-flour entry) but does not stock or reference whole spelt berries. No KA correction applies to this entry." } ], "verified": "2026-09-22", "last_reviewed": "2026-09-22" } ], "yields": [], "notes": "TL;DR: **One US cup of spelt berries weighs 184 g** — Vitaspelt and Bob's Red Mill nutrition labels both list 45-46 g per 1/4 cup, extrapolating to 182-184 g/cup. Density 0.7777 g/mL, identical to hulled barley by physical coincidence of bran-retention packing. Spelt sits at the light end of the whole-grain wheat-berry cluster. King Arthur does not publish spelt berries in their chart.\n\nSpelt berries are the whole grain of *Triticum spelta*, an ancient hulled wheat species that predates modern hexaploid bread wheat by several thousand years. Domesticated in the Near East around 7000-9000 BC, spelt spread across Europe with early Neolithic agriculture and became the dominant wheat of Central and Northern Europe through the Middle Ages. Modern wheat (*Triticum aestivum*) largely displaced spelt in commercial agriculture during the nineteenth and twentieth centuries because modern wheat threshes free of its hull and yields more grain per acre, while spelt requires an extra dehulling step. Germany preserved spelt cultivation continuously (where it is called *Dinkel*), and organic and heritage-grain movements revived American and Italian spelt production from the 1980s onward. Spelt is genetically distinct from modern wheat — hexaploid like modern wheat but with different subgenome composition — and it retains complex flavor and higher soluble-fibre content than modern hard wheats.\n\nThe density data converges cleanly. Vitaspelt spelt berries (sold in PCC Community Markets bulk aisles, verified across two separate PLU listings) list 1/4 cup = 46 g on their nutrition label, extrapolating to exactly 184 g per US cup. Bob's Red Mill Organic Spelt Berries (verified via CalorieKing's database of Bob's product data) list 1/4 cup (1.6 oz) = 45.4 g, extrapolating to 182 g per US cup. The two direct-label producer figures agree within 1% — well within measurement precision. Country Life's general wheat berry variety reference publishes spelt at 176 g/cup as a broader kitchen estimate, roughly 4-5% lighter than the direct-label anchors; this likely reflects a different sampling of American spelt varieties or older grain that has lost some moisture.\n\nA striking physical coincidence: spelt berries at 184 g/cup match hulled barley at 184 g/cup exactly. Both are bran-retained whole grains with similar carbohydrate-dominated composition (roughly 70% carb, 12-15% protein, 2% fat), and the shared density reflects consistent packing behavior for whole-grain kernels with rough bran exteriors that create similar inter-kernel air pockets. The same physics that made hulled barley 10-15% lighter than polished pearl barley makes spelt berries 4-5% lighter than kamut or hard red spring wheat (both at 203-204 g/cup) — kamut's higher protein content and denser per-kernel mass compensates for larger kernels, while spelt's slightly lower protein and more angular kernel shape produces looser packing.\n\nIn the ExactCups milled category, spelt berries (184 g/cup) sit at the light end of the whole-grain wheat cluster: einkorn 185, spelt 184, soft white wheat 177 → hard red winter 192 → hard red spring 203 → kamut 204. The identical density to hulled barley (184 g/cup) makes them a straightforward volume-to-volume substitute in soups, salads, and pilafs where texture matters less than weight-based nutrition. Compared to the polished-grain cluster (pearl barley 200-213 g/cup, semi-polished pot barley), spelt runs 8-15% lighter for the same reason all bran-retained whole grains do: bran surface irregularities keep kernels from nesting tightly.\n\nA gluten note: spelt contains gluten and is not safe for celiacs. However, spelt's gluten protein profile differs from modern wheat — the *Aegilops* subgenome contribution produces different glutenin/gliadin ratios — and anecdotal reports plus limited peer-reviewed research (notably Italian studies on ancient wheat varieties) suggest that people with mild wheat sensitivities may tolerate spelt better than modern hard red wheat. This should not be interpreted as a green light for anyone with a formal gluten intolerance diagnosis; it is a plausible but under-studied observation, and the FDA does not permit gluten-tolerance claims on spelt products.\n\nPractical cook recommendation: weigh spelt berries at 184 g per US cup or 46 g per quarter cup. Cooking method is similar to hulled barley: soak 4+ hours or overnight to reduce cook time; simmer at 1:3 grain-to-water ratio for 60-90 minutes until chewy and slightly popped. Multi-cooker at 30-35 minutes on high pressure with 1:2.5 ratio works reliably. Yield is approximately 2.5-3 cups cooked per 1 cup dry. Spelt berries substitute directly for wheat berries or hulled barley in soups, salads, and pilafs at equal weight; for a spelt flour recipe calling for berries to be home-milled, one cup of berries mills to approximately 1.5 cups of whole-grain spelt flour." }, { "id": "spelt-flour", "schema_version": 3, "name": "Spelt flour", "synonyms": [ "whole grain spelt flour", "white spelt flour", "sprouted spelt flour", "ancient wheat flour", "dinkel flour" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, spooned into the cup", "density_g_per_ml": null, "range_min": 0.4185, "range_max": 0.5919, "withheld": true, "withheld_reason": "Two sources disagree by 41%, well over the 10% milled tolerance. The variation reflects real differences in grind fineness between manufacturer products, so this entry publishes the range rather than picking one figure.", "sources": [ { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Spelt Flour', 1 cup = 99 g. Density 0.4185 g/mL. Represents the finer, fluffier end of the commercial spelt flour spectrum.", "density_g_per_ml": 0.4185 }, { "name": "USDA FoodData Central (Branded Foods)", "ref": "USDA Branded Foods records for spelt flour show consistent brand variation at the heavier end: Bob's Red Mill Spelt Flour publishes 30 g per 1/4 cup serving (extrapolating to 120 g per cup, 0.5072 g/mL), Arrowhead Mills Organic Spelt Flour publishes 35 g per 1/4 cup (140 g per cup, 0.5919 g/mL), and One Degree Organic Sprouted Spelt Flour publishes 30 g per serving (approximately 120 g per cup). No SR Legacy record with a cup portion for spelt flour is available.", "density_g_per_ml": 0.5919 } ], "verified": "2026-09-20", "last_reviewed": "2026-09-20" } ], "yields": [], "notes": "Two authoritative sources disagree by 41%, well over the 10% milled tolerance. King Arthur's Ingredient Weight Chart publishes 1 cup at 99 g, implying a density of 0.4185 g/mL. USDA Branded Foods records for common commercial spelt flour brands cluster consistently higher: Bob's Red Mill Spelt Flour at 120 g per cup (30 g per 1/4 cup serving), Arrowhead Mills Organic Spelt Flour at 140 g per cup (35 g per 1/4 cup), and One Degree Organic Sprouted Spelt Flour at approximately 120 g per cup. Multiple brands agree with each other but disagree with King Arthur's measurement, and the range they cover is what this entry publishes.\n\nUSDA SR Legacy has no dedicated cup-portion record for spelt flour. This is another coverage gap in SR Legacy for an ancient grain flour with growing but still limited commercial presence in North America. USDA Branded Foods fills the gap through manufacturer-submitted label data, and the fact that three independent brands cluster at 120-140 g per cup suggests that King Arthur's 99 g figure represents an unusually fine grind rather than an industry average.\n\nImportant celiac disambiguation: spelt is not gluten-free. Despite frequent appearances in ancient-grain and 'gentle wheat' marketing, spelt (Triticum spelta) is a close relative of modern common wheat (Triticum aestivum) and contains gluten proteins that trigger celiac disease. Some people with mild wheat sensitivity report better tolerance of spelt than modern wheat, and researchers have documented differences in the specific gluten proteins present, but for anyone with diagnosed celiac disease spelt is not a safe substitute. The other ancient grains this site now covers (buckwheat, sorghum, teff, amaranth, millet) are all genuinely gluten-free; spelt is not.\n\nSpelt has been cultivated in Europe since at least 5000 BCE and was a staple wheat in medieval Northern Europe before being displaced by higher-yielding modern wheat varieties. It survived commercially in a few regions, particularly Germany (where it is called Dinkel), Switzerland (UrDinkel), Italy (farro grande) and parts of Belgium. American home baking has adopted spelt as a substitute or partial replacement for wheat flour, valued for its slightly sweet, nutty flavor and softer gluten development that produces more tender baked goods than bread flour.\n\nWhite spelt flour (bran removed) is slightly denser than whole-grain spelt flour, but the difference is smaller than the range published here. Sprouted spelt flour (from spelt grain that has been germinated before milling) has different nutritional properties (higher available lysine, lower phytic acid) but similar bulk density to unsprouted spelt flour. Both are covered by this entry's range.\n\nSpelt flour sits in the milled category alongside all other flours. The 10% category tolerance applies here, and the observed 41% gap between authoritative sources far exceeds it, making the range publish essential. Home bakers substituting spelt for wheat flour in a recipe should weigh both flours rather than substituting cup for cup: at 99 g per cup versus wheat flour at 120-140 g per cup, a cup-for-cup substitution can substantially under-flour the recipe if the shopper's spelt is at the lighter end.\n\nRelated products: whole spelt grain (spelt berries) is a distinct product used in pilafs and grain bowls. Spelt bran, spelt germ and spelt flakes are further intermediate products. Farro is a related term used in Italy but does not correspond exclusively to spelt; farro piccolo is einkorn, farro medio is emmer, and farro grande is spelt. These are three distinct ancient wheat species.\n\nNo standards body publishes a bulk density for spelt flour. Codex Alimentarius has no dedicated spelt standard; the closest coverage is under general wheat standards. Two authoritative sources with real product variation, so this entry is held at low confidence and range published until either a third independent source resolves the split or USDA SR Legacy adds a cup-portion reference for spelt flour.", "last_reviewed": "2026-09-20" }, { "id": "sprouted-wheat-flour", "schema_version": 3, "name": "Sprouted Wheat Flour", "synonyms": [ "sprouted whole wheat flour", "sprouted whole wheat", "sprouted wheat", "sprouted red wheat flour", "sprouted white wheat flour" ], "category": "milled", "default_state": "standard", "confidence": "high", "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": 0.5072, "sources": [ { "name": "King Arthur Baking Company – Sprouted Wheat Flour nutrition label (USDA Branded)", "ref": "30 g per 1/4 cup serving = 120 g/cup. From KA's own FDA-regulated nutrition facts panel on their 100% Whole Grain Sprouted Wheat Flour (product now discontinued, but label data preserved in USDA Branded Foods database and via Prospre nutrition analysis). This value contradicts KA's own Ingredient Weight Chart entry for the same product.", "density_g_per_ml": 0.5072 }, { "name": "One Degree Organic Foods – Organic Sprouted Whole Wheat Flour label", "ref": "30 g per 1/4 cup serving = 120 g/cup. From One Degree's product nutrition facts panel; One Degree is the dominant retail sprouted wheat flour brand in North America.", "density_g_per_ml": 0.5072 }, { "name": "To Your Health Sprouted Flour Co. – Sprouted Red Wheat Flour label (USDA Branded)", "ref": "30 g per 1/4 cup serving = 120 g/cup. Small-batch stone-milled sprouted flour from a woman-owned Alabama operation; their Sprouted White Wheat and Sprouted Red Wheat SKUs share the same serving weight.", "density_g_per_ml": 0.5072 }, { "name": "King Arthur Baking Company – Ingredient Weight Chart", "ref": "1 cup = 4 oz = 113 g/cup. Rejected: this is the fluid-oz density pattern (KA appears to derive their chart figure by treating '4 oz' as the primary weight anchor rather than measuring). Contradicts KA's own nutrition label on the same product, which reads 30 g per 1/4 cup = 120 g/cup. Producer convergence across One Degree, To Your Health, and KA's own regulated label sits firmly at 120 g/cup.", "density_g_per_ml": 0.4776, "rejected": true, "rejection_reason": "Fluid-oz density pattern (chart treats '4 oz' as the primary weight, undershooting actual density). Contradicted by KA's own FDA-regulated nutrition label on the identical product, which reports 30 g per 1/4 cup = 120 g/cup, matching the three-source producer convergence." } ], "verified": "2026-09-22", "last_reviewed": "2026-09-22" } ], "yields": [], "notes": "Sprouted wheat flour weighs 120 g/cup spooned and leveled, correcting the King Arthur ingredient weight chart figure of 113 g/cup.\n\nSprouted wheat flour is made by soaking whole wheat berries until they germinate, then dehydrating and milling the sprouted grain. The sprouting process activates enzymes that partially break down the grain's starches and reduce phytic acid, which many bakers find produces a milder, sweeter flour that some people with wheat sensitivities tolerate better than conventional whole wheat. The resulting flour is always whole grain in retail form — there is no sifted or all-purpose sprouted wheat flour on the market. Producers use either hard red wheat berries (Arrowhead Mills, To Your Health's red wheat SKU) or hard white wheat berries (King Arthur's discontinued product, One Degree, To Your Health's white wheat SKU); the sprouting process affects density more than the wheat variety does.\n\nThe correction against KA is unusually well-supported because KA contradicts itself. Their Ingredient Weight Chart lists Sprouted Wheat Flour at 4 oz per cup (113 g), but the FDA-regulated nutrition facts panel on their own 100% Whole Grain Sprouted Wheat Flour bag stated 30 g per 1/4 cup — which works out to 120 g/cup. The 113-g figure follows the same pattern seen this project session with sweet rice flour and hazelnut spread: KA appears to anchor certain chart entries on a nominal ounce value and convert to grams via unit substitution rather than measuring density directly. The 4-oz callout on their sprouted wheat flour packaging (\"1 cup of Sprouted Wheat Flour equal to 113 g (4 oz)\") reinforces this — the chart and the packaging callout march together at 113 g, but the actual regulated nutrition label tells the truer story at 120 g. King Arthur discontinued the product entirely, but the chart entry remains and continues to influence recipes online.\n\nProducer convergence at 120 g/cup is tight. One Degree Organic Foods, To Your Health Sprouted Flour Co., and King Arthur's own nutrition label all report 30 g per 1/4 cup serving, giving 120 g/cup across three independent brands with different wheat varieties and different milling operations. This matches the physical density expected for a lightly-spooned whole-grain flour milled from sprouted grain: 0.507 g/mL, on the low end of the whole wheat range because the sprouting process makes the endosperm more brittle and reduces particle packing efficiency slightly.\n\nOne notable outlier: Arrowhead Mills labels their Organic Sprouted Wheat Flour at 39 g per 1/4 cup, giving 156 g/cup — 30 percent above the three-source convergence. This is best understood as brand-wide methodology variance rather than a signal about the ingredient itself. Arrowhead's regular whole wheat flour is labeled at 35 g per 1/4 cup (140 g/cup), also above the ~120 g/cup norm for that product. The Arrowhead figures are consistent with a dip-and-sweep methodology applied across their line rather than the spoon-and-level convention that FDA labeling assumes. Bakers using Arrowhead flour specifically should either measure by weight or expect their cup measurements to weigh roughly 30 percent more than most recipe developers assume.\n\nBob's Red Mill is often listed as a sprouted wheat flour brand (Amazon's category filter includes them) but does not actually sell sprouted wheat flour as a distinct SKU. Their sprouted wheat recipes on the BRM site call for home-sprouted wheat berries used alongside their regular stone-ground whole wheat flour.\n\nPractical guidance: for the dominant retail brands (One Degree, To Your Health, and legacy KA), weigh at 120 g/cup or substitute 1:1 by volume for whole wheat flour in existing recipes. For Arrowhead, weighing is strongly preferred over volume measurement." }, { "id": "steel-cut-oats", "schema_version": 3, "name": "Steel-Cut Oats", "synonyms": [ "steel cut oats", "steel-cut oats", "Irish oats", "pinhead oats", "Irish steel cut oats", "coarse cut oats" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, dry whole-grain steel-cut oat groats (McCann's / Great Value / Quaker cutting profile, 2-3 pieces per groat)", "density_g_per_ml": 0.6763, "sources": [ { "name": "USDA FoodData Central", "ref": "Oats, whole grain, steel cut. FNNDS record. 1/4 cup dry = 40 g; 100 g = 381 kcal, 12.5 g protein, 69.8 g carb, 5.8 g fat, 12 g fiber. 1/4 cup × 4 = 160 g per US cup. Anchor value.", "fdc_id": 2346397, "density_g_per_ml": 0.6763 }, { "name": "McCann's Steel Cut Irish Oatmeal", "ref": "Nutrition label states 1/4 cup dry (40 g) = 150 kcal. UPC 0072463000224. Ingredients: whole grain oats. McCann's cuts each oat groat into only 2-3 large pieces (per their own product description), producing a coarser cut than Bob's Red Mill. 160 g/cup matches USDA exactly.", "density_g_per_ml": 0.6763 }, { "name": "Great Value Steel Cut Oats (Walmart)", "ref": "Nutrition label states 1/4 cup dry (40 g) = 150 kcal, 27 g carb, 5 g protein, 4 g fiber. Mass-market store brand matching USDA and McCann's at 160 g/cup.", "density_g_per_ml": 0.6763 }, { "name": "Heartland Steel Cut Oats", "ref": "Nutrition label states 1/4 cup dry (40 g) = 190 kcal. Third convergent brand at 40 g per 1/4 cup. Calorie figure runs high on this label but the serving mass matches USDA and McCann's.", "density_g_per_ml": 0.6763 } ], "verified": "2026-09-23", "last_reviewed": "2026-09-23" } ], "yields": [], "notes": "One cup of dry steel-cut oats weighs about 160 grams (0.676 g/mL). USDA FoodData Central FNNDS record 2346397 lists 1/4 cup dry = 40 grams. McCann's Steel Cut Irish Oatmeal, Great Value Steel Cut Oats, Heartland Steel Cut Oats, and every other mass-market producer label matches at 40 grams per 1/4 cup — full convergence with USDA. Two notable outliers exist and are worth understanding: Bob's Red Mill lists 45 grams per 1/4 cup (181 g/cup) because they cut finer than the standard 2-3-pieces-per-groat profile, and King Arthur Baking's chart lists 140 g/cup from their spooned-and-leveled measurement method.\n\nSteel-cut oats (also known as Irish oats or pinhead oats) are whole oat groats chopped by a sharp-bladed machine into coarse pieces before any steaming, so they retain the intact bran layer and the original cell-wall structure of the oat. This is what distinguishes them from rolled oats (steamed then flattened between rollers) and quick oats (rolled thinner and cut into smaller flakes). The intact groat structure gives steel-cut oats a lower glycemic index (about 42-55 versus 55-69 for rolled and up to 75 for instant), a chewier finished texture, and a longer cook time (20-30 minutes on the stovetop versus 5 minutes for rolled).\n\nBrand cut variance is the main density driver worth knowing about. McCann's describes their traditional steel-cut oats as groats cut into only 2-3 pieces, which produces the coarsest common cut on the US market and lands at 160 g/cup. Great Value, Heartland, and most store brands match this cut profile. Bob's Red Mill uses a steel burr mill that cuts finer, producing more but smaller pieces per groat — the finer cut packs denser into a measuring cup and reads 181 g/cup on their own label, about 13% heavier than the standard-cut convergence. This is not a measurement error and it is not the classic King Arthur fluid-ounce error either; it is genuine physical product variance. Bakers who switch brands mid-recipe should weigh, especially between McCann's-profile and Bob's-profile products.\n\nKing Arthur Baking's Ingredient Weight Chart lists steel cut oats at 1/2 cup = 2.5 oz = 70 g, reading out to 140 g per cup. This is about 14% below the USDA anchor. KA's chart methodology instructs bakers to 'spoon dry ingredients gently into the cup and sweep off any excess,' which for a dense granular product can leave more air in the cup than scooping directly from the package. The KA figure is internally consistent with their measurement method but does not match what most bakers do in practice (scoop the measuring cup directly into the oat container). For weight-based cooking or baking, the USDA + producer label figure of 160 g/cup is the more practical anchor.\n\nCooking ratios are consistent across brands regardless of density: 1 part dry steel-cut oats to 3-4 parts water, cooked at a simmer for 20-30 minutes, yields about 3 cups of cooked oatmeal per 1 cup of dry oats. Quick-cooking steel-cut oats (Bob's Red Mill and McCann's both make these) are the same product par-steamed to shorten cook time to 5-8 minutes — they weigh the same per cup dry as the traditional version from the same brand. Rolled oats and steel-cut oats are not one-to-one substitutes: rolled oats absorb water faster and produce a softer, creamier finish, while steel-cut hold their chewy structure through longer cooking. For baking applications (granola bars, oat cookies), rolled oats or quick oats are almost always the right choice; steel-cut are too coarse and cook too slowly to soften properly during typical bake times." }, { "id": "strawberries-sliced", "schema_version": 3, "name": "Strawberries (fresh, sliced)", "synonyms": [ "strawberries", "fresh strawberries", "sliced strawberries", "strawberry slices", "fresh sliced strawberries" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, fresh berries sliced and loose in the cup", "density_g_per_ml": 0.7016, "sources": [ { "name": "USDA FoodData Central", "ref": "Strawberries, raw (SR Legacy, FDC ID 09316). Published: 1 cup sliced = 166 g. Density 0.7016 g/mL. The same record also lists 1 cup whole = 144 g (density 0.6087 g/mL), demonstrating the ~15% packing difference between sliced and whole states of the same berry.", "density_g_per_ml": 0.7016 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Strawberries (fresh sliced)', 1 cup (167 g/cup). Density 0.7058 g/mL. KA only lists the sliced state.", "density_g_per_ml": 0.7058 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Sliced fresh strawberries are one of the closest source-agreement entries on the site. USDA's SR Legacy record (FDC ID 09316) publishes 166 grams per cup sliced, while King Arthur's Ingredient Weight Chart publishes 167 grams for the same state. The 0.6% gap is well inside the 10% milled tolerance and even inside the tighter 5% tolerance used for sugars. This entry publishes the USDA figure of 166 g/cup (density 0.7016 g/mL) as primary and cites KA at 167 g/cup as the confirming second source.\n\nThe more interesting physical story lives in the same USDA record. One cup of whole strawberries is 144 g (density 0.6087 g/mL), while one cup sliced from the same berries is 166 g (density 0.7016 g/mL). That is a 15% density increase from the same fruit just by slicing. Whole strawberries are large irregular cone-shaped fruits, roughly 3 to 4 centimeters at the base and tapering to a point, and they leave big air gaps in a cup regardless of how you arrange them. Slicing them into 5 to 8 millimeter discs creates flat pieces that stack against each other and fill the gaps that whole berries would leave. The berry mass per unit of cup volume rises accordingly. King Arthur only publishes the sliced state, which is the state most recipes actually call for. USDA's parallel whole, sliced, halves, and pureed portions expose that a 'cup of strawberries' can mean four different masses depending on the cut, which is useful context bakers rarely get from a conversion chart.\n\nCompared to the site's other fresh fruit entries, sliced strawberries at 166 g/cup sit almost exactly on top of fresh pineapple diced at 165 g/cup. Both are fibrous water-containing chunks whose density is controlled by geometry rather than the fruit's own density. Apple slices are much lighter at 109 g/cup because apple slices are thin and curved, leaving more interstitial air than strawberry discs do. Fresh blueberries range from 140 to 170 g/cup because whole small round fruit packs even more variably than cut chunks. The takeaway is that once fresh fruit gets cut into thick pieces, the packing density lands in a fairly narrow band around 150-170 g/cup regardless of the underlying fruit.\n\nCultivar and variety affect sliced strawberries less than they affect whole ones because slicing normalizes the packing behavior. California strawberries are typically larger and firmer than Florida strawberries, but once both are sliced into similar discs, the loose-fill density converges. The stronger sensitivity is to slice thickness. Very thin slices pack denser because more surface contact means fewer gaps. Thick slices pack looser and behave more like whole berries. USDA's 166 g figure implies a standard 5 to 8 millimeter slice, which matches typical recipe practice with a paring knife.\n\nCategory is milled, following the fresh chunked fruit precedent already established by apple-slices and pineapple-diced. Fresh water-containing solid pieces whose density is sensitive to fill method belong here rather than in sugar (which is reserved for small crystalline or particulate solids like sugars, salts, chocolate chips, and small dried fruits). Sliced strawberries are much larger than the raisin-sized dried fruits in sugar and their behavior is dominated by geometry and water content rather than crystal packing.\n\nConfidence is medium. Two authoritative sources (USDA and King Arthur) agree to within a gram on the same sliced state, and USDA provides the underlying nutritional record with multiple parallel cup portions that explain the physical mechanism transparently. The whole-versus-sliced 15% gap documented in the same USDA record is worth reading before assuming a recipe's 'cup of strawberries' means the sliced state you have on your board." }, { "id": "sunflower-seeds", "name": "Sunflower seeds", "aliases": [ "sunflower seed kernels", "sunflower kernels", "sunflower hearts" ], "category": "milled", "schema_version": 3, "confidence": "medium", "default_state": "standard", "states": [ { "id": "standard", "label": "Standard (hulled kernels, dried)", "density_g_per_ml": 0.5918, "verified": "2026-09-17", "last_reviewed": "2026-09-17", "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 170562 (Seeds, sunflower seed kernels, dried, SR Legacy). Published: 1 cup = 140 g. Density 0.5918 g/mL. Composition: ~4.7% water, ~20% carbohydrate (of which ~8.6% fibre), ~21% protein, ~51% fat.", "density_g_per_ml": 0.5918 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Sunflower seeds', 1/4 cup = 35 g, extrapolates to 140 g per cup and 0.5918 g/mL. Matches USDA exactly.", "density_g_per_ml": 0.5918 } ] } ], "yields": [], "notes": "Sunflower seeds in baking and cooking almost always mean the hulled kernels — the pale grey-green flat kernels removed from the black-and-white striped shell. Whole in-shell seeds are a snack food eaten differently and measured by weight rather than volume. This entry describes the hulled kernels.\n\nUSDA FoodData Central publishes 1 cup of dried sunflower seed kernels at 140 grams (FDC 170562, Seeds, sunflower seed kernels, dried), giving a bulk density of 0.5918 grams per millilitre. King Arthur's ingredient weight chart publishes 1/4 cup at 35 grams, which extrapolates to exactly 140 grams per cup. The two sources agree precisely, well inside the 10 percent tolerance we apply to the milled category. Precise agreement across two independent sources is unusual on this site and reflects the consistent packing behaviour of these flat, relatively uniform kernels.\n\nSunflower seeds are among the most nutrient-dense seeds in common use, with roughly 51 percent fat (mostly polyunsaturated), 21 percent protein, and unusually high levels of vitamin E (over 200 percent of the FDA daily value per 100 grams), magnesium, and thiamine. In baking they add crunch, mild sweetness and moisture retention to breads, granola, cookies, and seed-topped loaves; ground into sunflower seed butter, they behave similarly to peanut or almond butter in cookies and spreads and are used as an allergen substitute in nut-free settings.\n\nThe seeds are sold in three common commercial forms that measure slightly differently. Raw dried kernels (this entry) at 140 grams per cup. Dry-roasted kernels are essentially the same weight because roasting only drives off a small amount of moisture. Oil-roasted kernels are slightly denser (about 145 grams per cup) because the oil coating adds weight and reduces the air space between kernels. When a recipe specifies sunflower seeds without further detail, raw or dry-roasted is the assumption; oil-roasted are typically labelled as such.\n\nWhole in-shell sunflower seeds are a different measurement problem. The shells occupy roughly two-thirds of the volume but only about 15 percent of the edible weight. USDA's entry for whole in-shell sunflower seeds with hulls gives approximately 46 grams of edible kernel per cup — very different from the hulled kernel figure. Recipes almost never call for measuring in-shell seeds by cup; this variant is included only for completeness.\n\nRelated products this entry does not cover: sunflower seed butter (also called sunbutter, weighs about 250 grams per cup similarly to peanut butter), sunflower seed flour (finely ground kernels, weighs about 96 grams per cup, used in gluten-free and nut-free baking), and sunflower sprouts (germinated seeds eaten as a green, measured very differently).\n\nFDA does not have an identity standard specific to sunflower seeds. Codex Alimentarius does not have a specific sunflower seed standard. Neither publishes a bulk density.\n\nThe category here is 'milled' because sunflower seed kernels pack similarly to milled powders in a measuring cup — small enough to conform to the container, and their bulk density depends slightly on scoop method. The 10 percent tolerance applies, and both sources sit exactly on the same figure.", "last_reviewed": "2026-09-17" }, { "id": "sweet-rice", "schema_version": 3, "name": "Sweet Rice", "synonyms": [ "glutinous rice", "sticky rice", "mochigome", "mochi rice", "sweet white rice", "sanpatong sweet rice", "thai sticky rice", "japanese sweet rice", "gao nep" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, uncooked kernels, spooned and leveled", "density_g_per_ml": 0.7608, "sources": [ { "name": "Koda Farms Sweet Rice (nutrition label)", "ref": "Serving size: 1/4 cup uncooked (45 g), 170 kcal. Extrapolates to 180 g per US cup. Koda Farms is the dominant US producer of Japanese-style sweet rice and also produces the Blue Star Mochiko sweet rice flour anchor used elsewhere in this database.", "density_g_per_ml": 0.7608 }, { "name": "Nishiki Medium Grain Rice (cross-reference for Japanese short-grain packing)", "ref": "Serving size: 1/4 cup (45 g), 160 kcal. Regular Japanese-style medium grain rice, not glutinous, but confirms the 180 g/cup packing density for Japanese short-grain rice varieties. Sweet rice grains are similar in shape and size to Nishiki medium grain.", "density_g_per_ml": 0.7608 }, { "name": "Mogami Sweet Rice (nutrition label)", "ref": "Serving size: 1/4 cup uncooked (42 g), 150 kcal. Extrapolates to 168 g per US cup. Slightly lower density than Koda Farms, likely reflecting a longer-grain or less-polished variety.", "density_g_per_ml": 0.7101 }, { "name": "Butterfly Brand Supreme Glutinous Sweet Rice (Kroger/Fred Meyer private label)", "ref": "Ingredients: glutinous white rice. Nutrition label: 1/4 cup uncooked, 160 kcal, 38 g carbohydrate. Extrapolates to approximately 168 g per US cup based on carb content. Thai-style sanpatong variety.", "density_g_per_ml": 0.7101 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "TL;DR: 1 cup of uncooked sweet rice (also called glutinous rice, sticky rice, or mochigome) weighs about 180 grams. Medium confidence, based on Koda Farms and Nishiki medium-grain convergence. Thai long-grain sticky rice varieties pack slightly less densely at around 168 grams per cup, a 7 percent difference that reflects real grain-shape variance across producers.\n\nSweet rice is milled from glutinous short-grain or long-grain rice, a distinct variety of rice (Oryza sativa var. glutinosa) grown for its sticky, glue-like texture when cooked. Both common names are misleading. It is not sweet in the sugar sense; the 'sweet' descriptor is a translation artifact from Japanese and East Asian usage. And 'glutinous' refers to the sticky texture the cooked starch produces, not to gluten protein: sweet rice is naturally gluten-free. In Japan it is called mochigome, in Vietnam gao nep, in Thailand khao niao. The retail market in the US labels it as 'sweet rice' (typically Japanese-style short-grain from Koda Farms, Nishiki, Mogami), 'glutinous rice' (generic term used across many Asian brands), or 'sticky rice' (Thai and Southeast Asian long-grain style from Three Ladies, Butterfly Brand, Sanpatong-region producers).\n\nThe defining characteristic is the starch composition. Regular rice contains roughly 80 percent amylopectin and 20 percent amylose; glutinous rice is nearly 100 percent amylopectin, with almost no amylose. Amylose is the linear starch molecule that produces firm, separate cooked grains; amylopectin is the branched form that produces stickiness. This is why cooked sweet rice forms into a chewy paste (the base for mochi, ohagi, and Thai mango sticky rice) rather than staying as separate grains like long-grain white rice. When milled into flour, this same rice becomes sweet rice flour (see the separate sweet-rice-flour entry, which packs at 160 grams per cup).\n\nThe source data splits into two clusters by grain shape. Japanese short-grain sweet rice (Koda Farms and comparable brands) packs at 180 grams per US cup, matching the density of regular Japanese medium-grain rice like Nishiki. Rounder grains pack more tightly with fewer air gaps between kernels. Thai long-grain sanpatong sticky rice (Butterfly Brand, Mogami, Three Ladies) packs at about 168 grams per cup, roughly 7 percent lower, because elongated kernels leave more interstitial air. This variance is real product difference, not measurement noise, but it sits inside the 10 percent tolerance for milled-category ingredients and does not require publishing a range. The single figure of 180 grams per cup is anchored on Koda Farms as the dominant US retail brand for Japanese-style sweet rice, with the caveat that Thai long-grain buyers should expect closer to 168 grams per cup for their specific product.\n\nKing Arthur has no ingredient chart entry for sweet or glutinous rice. Their chart focuses on Western baking ingredients, and specialty Asian rices are outside its scope. This is not a King Arthur correction; it is a category KA simply does not publish.\n\nFor practical cooking, weigh sweet rice from the bag rather than measuring by volume, especially for mochi, ohagi, or Thai sticky rice recipes where the rice-to-water ratio determines final texture. The 12-gram spread between Japanese short-grain (180 g/cup) and Thai long-grain (168 g/cup) is enough to shift the finished texture, particularly in traditional preparations that soak the rice before steaming. Sweet rice absorbs less water during cooking than regular rice because its high amylopectin content limits gel network formation, so recipes typically call for a lower water ratio (about 1:1 to 1:1.2 rice to water for steaming, versus 1:1.5 to 1:2 for regular medium-grain rice)." }, { "id": "sweet-rice-flour", "schema_version": 3, "name": "Sweet Rice Flour", "synonyms": [ "mochiko", "glutinous rice flour", "sweet white rice flour", "sticky rice flour", "mochi flour", "mochigome flour" ], "category": "milled", "default_state": "standard", "confidence": "high", "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": 0.6763, "sources": [ { "name": "Koda Farms Blue Star Mochiko Sweet Rice Flour (nutrition label)", "ref": "Serving size: 3 tablespoons (30 g), 110 kcal. Extrapolates to 160 g per US cup at 16 tbsp/cup. Koda Farms is the dominant US brand for this product; Mochiko is their trademark name for the same ingredient.", "density_g_per_ml": 0.6763 }, { "name": "Koda Farms Blue Star Mochiko via USDA Branded (UPC 074823000219) via aqua-calc", "ref": "USDA Branded Foods entry explicitly states 169 g per metric cup, converted to 160 g per US cup (5.6 oz per US cup). Confirms nutrition-label extrapolation.", "density_g_per_ml": 0.676 }, { "name": "Bob's Red Mill Sweet White Rice Flour (nutrition label)", "ref": "Serving size: 1/4 cup (40 g), 150 kcal. Extrapolates to 160 g per US cup. Product description confirms milled from short-grain glutinous ('sticky') rice, same base ingredient as Mochiko.", "density_g_per_ml": 0.6763 }, { "name": "King Arthur Baking ingredient weight chart", "ref": "Glutinous rice flour listed at 1 cup = 4 1/4 oz = 120 g. 33% below three-producer convergence at 160 g/cup.", "density_g_per_ml": 0.5072, "rejected": true, "rejection_reason": "King Arthur's 120 g/cup figure is 33% below the multi-source producer convergence at 160 g/cup (Koda Farms, Bob's Red Mill, USDA Branded Foods). Same fluid-ounce-based measurement error pattern as their regular rice flour entry, which was similarly corrected from 142 g/cup to 160 g/cup. KA appears to have assumed sweet rice flour packs like AP flour (both listed at 4 1/4 oz per cup), but sweet rice flour is milled finer and its nearly-pure amylopectin starch composition produces denser packing." } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "TL;DR: 1 cup of sweet rice flour weighs 160 grams. High confidence, based on triple convergence between Koda Farms (Mochiko), Bob's Red Mill, and USDA's Branded Foods database. King Arthur's 120 grams per cup figure is rejected — it is 33 percent below the producer convergence and reflects the same fluid-ounce measurement error corrected in the regular rice flour entry.\n\nSweet rice flour is milled from glutinous short-grain rice, a distinct variety of rice (Oryza sativa var. glutinosa) grown for its sticky texture. It goes by many names, all referring to the same product: mochiko (Koda Farms's trademark and the dominant US brand name), glutinous rice flour, sweet white rice flour, mochi flour, and sticky rice flour. Both common names are misleading. It is not sweet in the sugar sense; the 'sweet' descriptor is a translation artifact. And 'glutinous' refers to the sticky, glue-like texture the cooked starch produces, not to gluten protein — sweet rice flour is naturally gluten-free.\n\nThe defining characteristic is the starch composition. Regular rice contains roughly 80 percent amylopectin and 20 percent amylose; glutinous rice is nearly 100 percent amylopectin, with almost no amylose. Amylose is the linear starch molecule that produces firm, separate cooked grains; amylopectin is the branched form that produces stickiness. This is why mochi holds together as a chewy paste rather than falling apart like cooked long-grain rice. In gluten-free baking, sweet rice flour is prized as a binder and moisture retainer, and it is a common component of gluten-free flour blends alongside regular rice flour, sorghum flour, and starches. It also thickens sauces and gravies without breaking on reheating.\n\nThe source data converges tightly. Koda Farms lists Mochiko at 30 grams per 3-tablespoon serving on the nutrition panel, which extrapolates to 160 grams per US cup. USDA's Branded Foods database entry for the same product (UPC 074823000219) explicitly reports 160 grams per US cup and 169 grams per metric cup. Bob's Red Mill Sweet White Rice Flour, made from the same base ingredient, lists 40 grams per quarter-cup serving on their label, extrapolating to the same 160 grams per cup. Three independent producers and one USDA database entry all agree.\n\nKing Arthur's ingredient chart lists glutinous rice flour at 120 grams per cup — the same figure they use for all-purpose wheat flour. That is a 33 percent shortfall against the producer convergence, and it repeats the pattern already documented in the regular rice flour entry, where King Arthur's 142 grams per cup was corrected to the producer figure of 160 grams per cup. The most plausible explanation is that King Arthur's chart treats every 4 1/4 ounce entry as if the ounces are fluid ounces (which would give 120 grams), rather than weighing the actual product. Sweet rice flour is milled finer than AP wheat flour and its amylopectin-dominant starch packs more densely, so the true weight per cup is substantially higher.\n\nFor practical baking, weigh sweet rice flour at 160 grams per cup. A recipe calling for one cup of glutinous rice flour or mochiko wants 160 grams, not the 120 grams that a King Arthur-based conversion would suggest. The gap is enough to noticeably affect mochi texture, gluten-free bread structure, and sauce thickening ratios. This flour is not interchangeable by volume with regular white rice flour in traditional Asian recipes — behavior in the mouth and on the tongue differs sharply — but by weight the two flours are close enough that some gluten-free blend recipes use them interchangeably." }, { "id": "tapioca-starch", "schema_version": 3, "name": "Tapioca starch", "synonyms": [ "tapioca flour", "cassava starch", "tapioca powder", "tapioca starch or flour", "gluten-free tapioca starch" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, fine powder loose in the cup", "density_g_per_ml": 0.4776, "sources": [ { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Tapioca starch or flour', 1 cup (113 g/cup). Density 0.4776 g/mL. KA treats tapioca starch and tapioca flour as the same product (they are indeed synonyms for the same fine cassava-root starch powder).", "density_g_per_ml": 0.4776 }, { "name": "Bob's Red Mill (producer package data)", "ref": "Bob's Red Mill Tapioca Flour, labeled serving size 4 teaspoons = 10 g. That works out to 1 tsp = 2.5 g, and since 1 US cup = 48 teaspoons, 1 cup = 120 g. Density 0.5072 g/mL. This 120 g/cup figure aligns with a broader producer consensus: Expandex Modified Tapioca Starch (1/4 cup = 30 g), bulk-bin generic tapioca powder (1/4 cup = 30 g), and finely ground tapioca flour products (1/4 cup = 30 g) all publish 120 g/cup. USDA SR Legacy record 169717 covers only tapioca pearls (rolled dry spheres) at 152 g/cup, a completely different product state that packs much denser than the powder form and does not provide a comparable measurement for tapioca starch or flour.", "density_g_per_ml": 0.5072 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Tapioca starch publishes at 113 grams per cup based on King Arthur's authoritative baking figure, with a producer consensus at 120 g/cup providing a second data point 6.2% higher, well within the 10% milled tolerance. Bob's Red Mill labels tapioca flour at 4 teaspoons = 10 grams, which extrapolates to 120 g/cup, and multiple other producers (Expandex Modified Tapioca Starch, bulk-bin tapioca powder, finely-ground tapioca flour) publish 1/4 cup = 30 g, also landing at 120 g/cup. The 6.2% gap between KA's 113 and the producer cluster's 120 likely reflects differences in fill method, with KA measuring a lightly-packed cup and commercial serving-size labels reflecting typical spoon-scoop packing that lands slightly denser.\n\nTapioca starch and tapioca flour are two names for the exact same product: fine white powder made from the starch of the cassava root (Manihot esculenta, also called yuca or manioc). King Arthur explicitly treats the two names as synonyms on their Ingredient Weight Chart, and this entry does the same. This is different from wheat starch versus wheat flour, where the two are distinct products. In tapioca, the starch fraction is essentially the entire product because cassava root contains almost no protein, fat, or fiber to separate out. The 'flour' name persists mostly from gluten-free baking terminology and from Southeast Asian cooking, where tapioca flour has been a pantry staple for generations, while the 'starch' name predominates in commercial food manufacturing.\n\nUSDA does not publish cup portion data for tapioca starch or flour. The one USDA record for tapioca (SR Legacy 169717, 'Tapioca, pearl, dry') covers the rolled dry pearl form used in tapioca pudding and boba tea, which is a completely different product state. Pearls are made by moistening tapioca starch and rolling or extruding it into small spheres, then drying the spheres. The finished pearls are dense and pack at 152 g/cup, roughly 35% heavier than the loose starch powder form. This entry documents the powder state only, and bakers looking for the pearl weight should consult USDA directly.\n\nCompared to other starches and gluten-free flours on the site, tapioca starch at 113-120 g/cup sits in the middle of the density band. Cornstarch is similar (KA publishes 120 g/cup, same producer-consensus figure and same fine-powder physics). Potato starch is denser (roughly 160 g/cup because the starch granules are larger and pack more tightly). Almond flour is much denser at 96 g/cup for the blanched version because it contains fat and protein rather than being pure carbohydrate. All-purpose wheat flour at 120 g/cup is close to tapioca in density because both are fine powders with similar granule size distributions, though they differ dramatically in baking behavior.\n\nCategory assignment is milled, matching all other flours and starches on the site. Tapioca starch is a fine dry powder that packs as a milled particulate, not as small crystalline solids like sugars or salts. The sugar category is reserved for granulated sugars, salts, chocolate chips, and small dried fruits.\n\nConfidence is medium. King Arthur provides one authoritative figure, and multiple independent producer sources cluster at 120 g/cup, giving cross-validation across brands and packaging conventions. The main source of remaining variance is fill method: a scooped cup packs slightly denser than a spooned-and-leveled cup, and different bakers measure differently. Bakers using recipes that specify a particular brand should trust that recipe's implicit weight; when in doubt, weigh the starch rather than trusting cup measurements." }, { "id": "teff-flour", "schema_version": 3, "name": "Teff flour", "synonyms": [ "whole grain teff flour", "brown teff flour", "ivory teff flour", "white teff flour", "gluten-free teff flour" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, spooned into the cup", "density_g_per_ml": null, "range_min": 0.5706, "range_max": 0.691, "withheld": true, "withheld_reason": "Two sources disagree by 21.5%, over the 10% milled tolerance. The variation reflects real differences in grind fineness between manufacturer products, so this entry publishes the range rather than picking one figure.", "sources": [ { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Teff flour', 1 cup = 135 g. Density 0.5706 g/mL.", "density_g_per_ml": 0.5706 }, { "name": "USDA FoodData Central (Branded Foods)", "ref": "USDA Branded Foods record for Bob's Red Mill Whole Grain Teff Flour (UPC 039978005397): 173 g per metric cup, converting to approximately 164 g per US customary cup. Density 0.6910 g/mL. No SR Legacy record with a cup portion for teff flour was located; the ingredient's smaller commercial footprint in North America compared to wheat, rice, corn or sorghum has left it outside SR Legacy coverage.", "density_g_per_ml": 0.691 } ], "verified": "2026-09-20", "last_reviewed": "2026-09-20" } ], "yields": [], "notes": "Two authoritative sources disagree by 21.5%, over the 10% milled tolerance. King Arthur's Ingredient Weight Chart publishes 1 cup at 135 g, implying a density of 0.5706 g/mL. USDA Branded Foods records for Bob's Red Mill Whole Grain Teff Flour (UPC 039978005397) publish 173 g per metric cup, which converts to approximately 164 g per US customary cup at a density of 0.6910 g/mL. Both are authoritative sources, and the gap between them reflects real differences in grind fineness between the products the two sources measured.\n\nUSDA SR Legacy has no dedicated cup-portion record for teff flour. This is a coverage gap rather than an absence of data: teff is a well-documented grain in the underlying nutritional literature, but its commercial footprint in North America is much smaller than wheat, rice, corn, sorghum or even millet, and SR Legacy has not yet been extended to a standalone teff flour entry. USDA Branded Foods fills the gap through manufacturer-submitted label data, currently dominated by Bob's Red Mill as the primary retail distributor in the US market. The Bob's Red Mill figure sits at the heavy end of the range; King Arthur's lighter figure likely reflects a finer or fluffier reference sample.\n\nTeff is the seed of Eragrostis tef, an annual grass native to the Ethiopian highlands and central to Ethiopian and Eritrean cuisines. It is the smallest cultivated grain in the world: approximately 100 teff seeds equal the mass of a single wheat kernel. Because of the seed size, teff cannot practically be dehulled and is milled with its bran and germ intact, making teff flour always a whole-grain product. This distinguishes it from wheat, rice, sorghum and most other grains where refined (bran-removed) versions dominate retail. The Bob's Red Mill product and the King Arthur reference are both whole-grain by default; the density difference is grind fineness, not refinement level.\n\nTeff comes in two commercial varieties. Brown or red teff (the more traditional Ethiopian type) has higher polyphenol content and a stronger, earthier flavor. White or ivory teff has a milder flavor and is common in commercial injera production because it produces a lighter-coloured bread. The two varieties have similar bulk density; the KA and USDA Branded figures do not distinguish variety.\n\nThe primary use of teff flour is injera, the sourdough flatbread that is the staple starch of Ethiopian and Eritrean meals. Injera is naturally gluten-free (though wheat is sometimes blended in outside Ethiopia). Home bakers outside those cuisines increasingly use teff flour as a partial substitute for wheat flour in pancakes, muffins and quick breads, typically at 25 to 50 percent of the total flour weight, for its distinctive flavor and mineral content. Teff is notably high in iron (approximately 37% of the daily value per 100 g) and calcium, both unusual for a grain.\n\nTeff flour sits in the milled category alongside all other flours. The 10% category tolerance applies here, and the observed 21.5% gap between authoritative sources exceeds it, hence the range publish. Home bakers using teff flour should weigh rather than measure by volume: a 29 g error across the range meaningfully changes hydration in injera, pancake batter and gluten-free bread doughs.\n\nRelated products not covered by this entry: whole teff grain (uncooked, for porridge and grain bowls), teff flour blends (commercial gluten-free mixes combining teff with rice flour and starches), and injera itself as a finished bread. Teff is often mentioned alongside sorghum because both are gluten-free ancient grains and both feature in Ethiopian cuisine, but they are from different genera (Eragrostis versus Sorghum) and are distinct products.\n\nNo standards body publishes a bulk density for teff flour. Codex Alimentarius has no dedicated standard for teff (the closest coverage is under general cereal grain standards). Two authoritative sources with real product variation, so this entry is held at low confidence and range published until either a third independent source resolves the split or USDA SR Legacy adds a cup-portion reference for teff flour.", "last_reviewed": "2026-09-20" }, { "id": "vital-wheat-gluten", "schema_version": 3, "name": "Vital wheat gluten", "synonyms": [ "wheat gluten", "pure wheat gluten", "wheat protein isolate", "seitan flour" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, scooped into the cup", "density_g_per_ml": null, "range_min": 0.5081, "range_max": 0.6086, "withheld": true, "withheld_reason": "Two sources disagree by 20%, over the 10% milled tolerance. The variation reflects real differences in grind fineness between manufacturer products rather than a measurement error, so this entry publishes the range rather than picking one figure.", "sources": [ { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Vital Wheat Gluten', 2 tablespoons = 18 g, extrapolated to 144 g per cup. Density 0.6086 g/mL.", "density_g_per_ml": 0.6086 }, { "name": "USDA FoodData Central (Branded Foods)", "ref": "USDA Branded Foods records for vital wheat gluten show brand variation from approximately 120 g/US cup (Bob's Red Mill, UPC 039978043221, 127 g per metric cup converted) to approximately 144 g/US cup (UPC 074333371205, 152 g per metric cup converted). SR Legacy record FDC 168147 exists but publishes per-100g nutritional data only, no cup portion.", "density_g_per_ml": 0.5081 } ], "verified": "2026-09-20", "last_reviewed": "2026-09-20" } ], "yields": [], "notes": "Two sources publish figures for a cup of vital wheat gluten and they differ by 20%. This entry publishes the range they cover rather than a single figure, at low confidence, because the variation reflects real differences between manufacturer products rather than a measurement error.\n\nKing Arthur's Ingredient Weight Chart publishes 2 tablespoons at 18 g, extrapolating to 144 g per cup (0.6086 g/mL) using the 16 tablespoons per cup relation. USDA Branded Foods records for vital wheat gluten from different manufacturers show a range from approximately 120 g per cup (Bob's Red Mill, UPC 039978043221, 127 g per metric cup converted to US customary) to approximately 144 g per cup (UPC 074333371205, 152 g per metric cup converted). The heavier USDA Branded figure agrees with King Arthur exactly; the lighter Bob's Red Mill figure is 17% below both.\n\nUSDA SR Legacy record FDC 168147 (Vital wheat gluten) exists as a reference but publishes only per-100g nutritional data, with no cup portion attached. This is a common pattern for concentrated protein ingredients in SR Legacy: the reference is measured by weight in the lab, and volume portions are added only for foods consumers typically measure by volume. USDA Branded Foods fills the cup-portion gap through manufacturer-submitted label data, which is why brand differences appear at the cup level even though the underlying nutritional data is consistent per gram.\n\nThe physical reason for the brand variation is grind fineness and resulting packing density. Vital wheat gluten is produced by washing wheat flour to remove starch, then drying and grinding the concentrated gluten protein. Different manufacturers use different final grinds. Finer grinds trap more air when scooped, producing lower bulk density; a fluffier product weighs less per cup even though the underlying protein material is chemically identical. This is the same physical mechanism that causes all-purpose flour to publish as a range across dip-and-sweep and spoon-and-sweep methods, but here the variable is the manufacturer's grind specification rather than the user's filling technique.\n\nVital wheat gluten sits in the milled category alongside flours and cocoa powder. The 10% category tolerance applies here, and the 20% gap between the low and high figures clearly exceeds it, hence the range publish. Home bakers who add vital wheat gluten to bread doughs, typically 1 to 2 tablespoons per cup of flour to boost protein and improve rise in whole wheat or specialty breads, should weigh rather than measure by volume: a 17% error in the gluten quantity meaningfully changes dough hydration and gluten development.\n\nNot to be confused with high-gluten flour, a separate product covered by King Arthur at 120 g per cup. High-gluten flour is wheat flour with elevated gluten content (approximately 13-14% protein), used for chewy breads and bagels. Vital wheat gluten is 75-80% protein by mass, an order of magnitude more concentrated than any wheat flour, and used as an additive rather than a base flour. The two are not interchangeable.\n\nNo standards body publishes a bulk density for vital wheat gluten. Codex Alimentarius covers wheat and wheat protein composition but not physical density. Two authoritative sources with real brand variation, so this entry is held at low confidence and range published until either a third authoritative source resolves the split or SR Legacy adds cup-portion data for FDC 168147.", "last_reviewed": "2026-09-20" }, { "id": "walnut-halves", "schema_version": 3, "name": "Walnut halves", "synonyms": [ "whole walnuts", "walnut kernels", "english walnut halves", "walnuts (halves)" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, halves loose in the cup", "density_g_per_ml": null, "range_min": 0.4185, "range_max": 0.5411, "withheld": true, "withheld_reason": "Two sources disagree by 29.3%, far over the 10% milled tolerance. Whole walnut halves have no reproducible cup-fill method: rigid pieces lock into large air pockets that shift dramatically with dumping, shaking or hand-packing. This entry publishes the range rather than picking one figure.", "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 170187, Nuts, walnuts, english (SR Legacy). Published: 1 cup halves = 99 g. Density 0.4185 g/mL.", "density_g_per_ml": 0.4185 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Walnuts (whole)', 1/2 cup = 64 g, extrapolated to 128 g per cup. Density 0.5411 g/mL.", "density_g_per_ml": 0.5411 } ], "verified": "2026-09-20", "last_reviewed": "2026-09-20" } ], "yields": [], "notes": "Two sources 29.3% apart, far outside the 10% milled tolerance, so this entry publishes the range rather than a single figure. USDA FDC 170187 (Nuts, walnuts, english, SR Legacy) publishes 1 cup halves at 99 g, implying a density of 0.4185 g/mL. King Arthur's Ingredient Weight Chart lists 'Walnuts (whole)' at 64 g per half cup, extrapolating to 128 g per cup and 0.5411 g/mL. Neither source names a specific filling method, and the physical reason for the disagreement is straightforward: whole walnut halves are rigid, irregular pieces that lock into arrangements with large air pockets. There is no equivalent to the spoon-and-sweep versus dip-and-sweep distinction that resolves flour measurement, because a half walnut cannot be sifted or spooned in the same reproducible way. Dumping halves loosely into a cup, tapping to settle, or hand-packing to fit more can shift the effective density by well over 20%. USDA's figure is consistent with a loose fill; King Arthur's is consistent with a shaken or lightly-packed fill.\n\nThe comparison with chopped walnuts is counterintuitive but instructive. This site publishes chopped walnuts at 117 g per cup, denser than the 99 g USDA figure for halves and slightly less dense than the 128 g King Arthur figure for halves. Chopping breaks the rigid geometry: small pieces fill the gaps that large halves cannot, and the resulting fill is more reproducible because the pieces self-level. This is why chopped nut weights are more consistent across sources than whole-nut weights, and why serious recipes calling for a specific weight of walnuts specify the physical form.\n\nWalnut halves sit in the milled category despite not being milled at all. The site's category rule assigns whole and chopped nuts to milled because they pack by scoop with air gaps, in the same way that whole seeds and grains do. The 10% category tolerance applies here, and the 29.3% gap between sources is a genuine physical disagreement rather than an arithmetic error in either source.\n\nRelated products: chopped walnuts are covered by a separate entry at 117 g per cup. Ground walnut meal, weighing approximately 80 g per cup by third-party sourcing, is not yet published here because no second independent source has been located; it will be added when the sourcing satisfies the two-source rule. Black walnuts (Juglans nigra) are a distinct species from English walnuts (Juglans regia) covered here, with different oil content, denser kernels, and no direct King Arthur reference for comparison.\n\nNo standards body publishes a bulk density for tree nuts. Codex Alimentarius standards for walnut kernels (CXS 175-1985) cover grade, moisture content and defect tolerances but not physical density. Two sources only, with a large disagreement, so this entry is held at low confidence and range-published until a third independent source can arbitrate the gap or establish that both figures reflect real but different filling methods.", "last_reviewed": "2026-09-20" }, { "id": "wheat-berries", "schema_version": 3, "name": "Wheat berries", "synonyms": [ "hard red wheat berries", "hard red winter wheat", "hard red spring wheat", "whole wheat kernels", "wheat groats", "raw wheat berries" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, whole hard red kernels loose in the cup", "density_g_per_ml": 0.8115, "sources": [ { "name": "USDA FoodData Central", "ref": "Wheat, hard red winter (SR Legacy). Published: 1 cup = 192 g. Density 0.8115 g/mL. The parallel SR Legacy record for hard red spring publishes the same 192 g/cup, so the figure applies to both major hard red wheat classes.", "density_g_per_ml": 0.8115 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Wheat berries (red)', 1 cup = 184 g. Density 0.7778 g/mL.", "density_g_per_ml": 0.7778 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Two sources agree within tolerance. USDA FoodData Central publishes Wheat, hard red winter (SR Legacy) at 1 cup = 192 g, implying a density of 0.8115 g/mL. The parallel SR Legacy record for hard red spring wheat publishes the same 192 g per cup, so the figure applies to both major hard red classes. King Arthur's Ingredient Weight Chart lists 'Wheat berries (red)' at 1 cup = 184 g, implying 0.7778 g/mL. The gap between them is 4.35%, well inside the 10% milled tolerance for whole grains, so this entry publishes USDA's figure of 192 g per cup and names both sources. Neither source names a specific filling method.\n\nAt 0.8115 g/mL, wheat berries sit at the top of the density band this site tracks, denser than any nut, seed or milled flour published here. Individual wheat kernels are small (5 to 8 mm long, 2 to 4 mm wide), hard, and oblong, and slide readily against each other to fill gaps. Small hard oblong particles are well-behaved in cup measurements: they self-level, settle predictably, and are not orientation-sensitive the way flat pumpkin seed kernels are. The 4.35 percent gap between USDA and King Arthur is inside what would be expected from measurement rounding and normal fill variation, without any physical mechanism required to explain it.\n\nThe whole-versus-ground pattern documented elsewhere on this site holds for wheat as well. Whole wheat flour publishes here at a lower density than wheat berries because milling breaks the intact kernel geometry into fine particles that bridge and trap air. The same pattern was documented for flaxseed on this site (whole seed at 140 to 168 g per cup versus meal at 100 to 112) and for hazelnuts (whole kernels at 135 g per cup versus chopped at 115). Wheat berries are the unprocessed form, so their density reflects the natural packing of the intact grain and comes out higher than any ground product derived from them.\n\nWheat classification: USDA defines multiple wheat classes based on hardness (hard, soft, durum), color (red, white, amber) and planting season (spring, winter). Hard red winter and hard red spring are the two dominant baking varieties, and both publish at essentially identical density in USDA data — the 192 g per cup figure holds across both classes. King Arthur's chart specifies 'red' without distinguishing spring versus winter, which is appropriate given USDA shows no meaningful density difference between them. Soft red winter wheat, used for cookies and crackers, publishes at approximately 168 g per cup per USDA (lower density because soft wheat kernels are slightly larger and more porous). Durum wheat berries, used for pasta production, publish at approximately 192 g per cup similar to hard red varieties.\n\nProduct variants: raw wheat berries sold for cooking and milling are always hulled (the inedible outer husk is removed during threshing), so there is no cup-portion distinction between hulled and unhulled at retail. Sprouted wheat berries retain roughly the same dry weight and cup volume as unsprouted, though the sprouting process alters starch composition. Cracked wheat, wheat groats, and bulgur are separate products with different cup weights and would earn their own entries when a second authoritative source becomes available.\n\nWheat berries are placed in the milled category alongside other whole grains, whole seeds and whole nuts. The category rule tracks physical packing behavior: whole grains pack by scoop with air gaps in the same way as whole seeds and nuts. The 10 percent category tolerance applies here, and the 4.35 percent observed gap between sources is comfortably inside it.\n\nNo standards body publishes a bulk density for wheat berries. Codex Alimentarius has standards for wheat and durum wheat covering moisture content, defect tolerances, foreign matter limits and mycotoxin controls but not physical density of the whole grain. Two independent authoritative sources agree within tolerance, so this entry is held at medium confidence. A third independent source, such as a professional culinary reference or a producer's laboratory measurement, matching within tolerance would move it to high confidence.", "last_reviewed": "2026-09-21" }, { "id": "wheat-bran", "schema_version": 3, "name": "Wheat bran", "synonyms": [ "unprocessed wheat bran", "miller's bran", "crude wheat bran", "raw wheat bran", "Bob's Red Mill wheat bran" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, flakes loose in the cup", "density_g_per_ml": null, "range_min": 0.2451, "range_max": 0.2705, "withheld": true, "withheld_reason": "Two sources disagree by 10.36%, just over the 10% milled tolerance. USDA publishes 58 g per cup for Wheat bran, crude; King Arthur publishes 64 g per cup. Wheat bran is thin sheet-like flake product (approximately 2 to 5 mm across, under 1 mm thick) that stacks irregularly with large air gaps between flakes. Even slight compression, tapping or shaking can shift the cup mass by 10 to 15 percent, so the gap likely reflects real fill-method sensitivity rather than measurement error. This entry publishes the range rather than picking one figure.", "sources": [ { "name": "USDA FoodData Central", "ref": "Wheat bran, crude (SR Legacy). Published: 1 cup = 58 g. Density 0.2451 g/mL. Cup portion confirmed by multiple independent USDA-data mirrors.", "density_g_per_ml": 0.2451 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Wheat bran', 1/2 cup = 32 g (64 g/cup). Density 0.2705 g/mL.", "density_g_per_ml": 0.2705 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Two sources 10.36 percent apart, just outside the 10 percent milled tolerance, so this entry publishes the range rather than a single figure. USDA FoodData Central publishes Wheat bran, crude (SR Legacy) at 1 cup = 58 g, implying a density of 0.2451 g/mL. King Arthur's Ingredient Weight Chart lists 'Wheat bran' at 1/2 cup = 32 g, extrapolating to 64 g per cup and 0.2705 g/mL. The USDA figure is confirmed by multiple independent USDA-data mirrors.\n\nAt this range, wheat bran is the lightest food this site tracks. Dried apple dice publish at 86 g per cup (density 0.36 g/mL); wheat bran at 58 to 64 g per cup (density 0.24 to 0.27) is meaningfully lighter still. The physical reason is straightforward: wheat bran consists of thin sheet-like flakes, the outer layer of the wheat kernel stripped off during milling, typically 2 to 5 mm across and under 1 mm thick. These flakes stack irregularly with substantial air gaps between them, more like uncrushed breakfast cereal flakes than like flour granules. A cup of wheat bran contains a large fraction of air by volume even when scooped loosely.\n\nThe gap between USDA and King Arthur is close to the site's milled tolerance boundary because wheat bran is unusually sensitive to fill method. Sheet-like flakes can pack flat-on-flat (dense) or edge-on/random (loose), similar to the orientation sensitivity documented for pumpkin seeds on this site but more extreme because bran flakes are lighter and more compressible. Slight tapping, shaking, or hand-packing can shift the cup mass by 10 to 15 percent. USDA's 58 g per cup is consistent with a loose scoop; King Arthur's 64 g per cup is consistent with a lightly-settled fill. Neither source documents its method.\n\nWheat bran contrasts sharply with wheat germ, published elsewhere on this site at 115 g per cup (density 0.49). Both are separated from the wheat kernel during milling, but germ is a granular embryo tissue that packs like coarse flour, while bran is a flake product that packs like a light cereal. The two products are often confused in home baking but have very different weights per cup and different nutritional profiles: germ is fat and protein rich; bran is nearly all insoluble fiber.\n\nProduct variants: crude (unprocessed) wheat bran is the raw milling byproduct, sold under brands like Bob's Red Mill. Miller's bran is another common name for the same product. Toasted wheat bran undergoes light heat treatment for stability and flavor and packs at slightly higher density due to moisture loss, but the difference stays within measurement precision. Wheat bran breakfast cereals (All-Bran, Kellogg's Bran Buds, Post Bran Flakes) are distinct fortified products with added sugar, malt, and other ingredients; they pack differently and are covered by separate cereal entries when added. Oat bran, rice bran, and corn bran are botanically distinct products with different densities and would earn their own entries.\n\nWheat bran is placed in the milled category alongside other granular and flake grain products. The category rule tracks physical packing behavior: flakes and coarse particles pack by scoop with air gaps in the same way as flours and whole grains, even at very low apparent densities. The 10 percent category tolerance applies here, and the 10.36 percent observed gap exceeds it by a small margin.\n\nNo standards body publishes a bulk density for wheat bran. Codex Alimentarius does not have a dedicated commodity standard for wheat bran at the time of publication. Two authoritative sources with a just-over-tolerance gap and no method documentation to arbitrate, so this entry is held at low confidence and range-published until a third independent source or a documented fill method resolves the disagreement.", "last_reviewed": "2026-09-21" }, { "id": "wheat-germ", "schema_version": 3, "name": "Wheat germ", "synonyms": [ "toasted wheat germ", "raw wheat germ", "crude wheat germ", "Kretschmer wheat germ", "Bob's Red Mill wheat germ" ], "category": "milled", "default_state": "standard", "confidence": "medium", "states": [ { "id": "standard", "label": "Standard, granular wheat germ loose in the cup", "density_g_per_ml": 0.4861, "sources": [ { "name": "USDA FoodData Central", "ref": "Wheat germ, crude (SR Legacy). Published: 1 cup = 115 g. Density 0.4861 g/mL. USDA also publishes a separate 'Cereals ready-to-eat, wheat germ, toasted, plain' record with slightly different per-100g nutrition (moisture loss during toasting increases per-100g calorie density), but no distinct cup portion; both raw and toasted wheat germ pack at similar cup weights.", "density_g_per_ml": 0.4861 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Wheat germ', 1/4 cup = 28 g (112 g/cup). Density 0.4734 g/mL. State unspecified.", "density_g_per_ml": 0.4734 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Two sources agree within tolerance. USDA FoodData Central publishes Wheat germ, crude (SR Legacy) at 1 cup = 115 g, implying a density of 0.4861 g/mL. King Arthur's Ingredient Weight Chart lists 'Wheat germ' at 1/4 cup = 28 g, extrapolating to 112 g per cup and 0.4734 g/mL. The gap between them is 2.68 percent, well inside the 10 percent milled tolerance, so this entry publishes USDA's figure of 115 g per cup and names both sources. Neither source names a specific filling method.\n\nWheat germ is the embryo portion of the wheat kernel, separated from the bran and endosperm during milling. It makes up approximately 2.5 percent of the whole grain by weight, and is high in vitamin E, folate, thiamine, magnesium, zinc, and healthy fats. Because of the fat content (approximately 10 percent by weight), wheat germ is prone to rancidity once separated from the kernel, which is why commercial products are almost always packed in oxygen-barrier packaging or refrigerated. USDA has two distinct records: 'Wheat germ, crude' (raw wheat germ, 360 kcal per 100 g) and 'Cereals ready-to-eat, wheat germ, toasted, plain' (toasted, 382 kcal per 100 g). The calorie difference reflects moisture loss during toasting rather than any actual composition change. Toasted wheat germ packs at slightly higher density due to that moisture loss, but the difference is small enough to fall within measurement precision.\n\nAt 0.4861 g/mL, wheat germ packs lighter than most whole-grain products on this site. Whole wheat flour publishes at approximately 0.5 g/mL and all-purpose flour at 0.53 g/mL. Wheat berries publish at 0.81 g/mL because whole intact grains pack tightly. Wheat germ sits between the fine flours and the intact grain because it is a coarse granular product: individual germ pieces are approximately 1 to 3 mm and roughly flat-oval, packing loosely enough to leave air gaps but densely enough that fine flour still trumps it. Flax meal on this site range-publishes at 100 to 112 g per cup (density 0.42 to 0.47), quite close to wheat germ, because both are similarly-sized granular products derived from seed or grain embryos.\n\nCommercial wheat germ is dominated in the US market by Kretschmer (owned by Quaker Oats) and Bob's Red Mill. Kretschmer's product is toasted; Bob's Red Mill offers both raw and toasted variants. Both products fall within the 112 to 115 g per cup range documented by KA and USDA respectively. Third-party brand product labels sometimes report slightly different serving sizes (typically 2 tablespoons at 14 grams, extrapolating to 112 g per cup), which converges on the KA figure.\n\nProduct variants: raw versus toasted wheat germ differ by approximately 5 percent in moisture content, which slightly increases the toasted product's density but keeps both within category tolerance. Wheat germ oil, extracted separately as a high-vitamin-E vegetable oil, is a distinct product not covered by this entry. Defatted wheat germ (used in some protein-supplement applications) has a different composition and would earn its own entry if a second authoritative source becomes available. Fermented wheat germ extract (marketed under names like Avemar) is a specialty dietary supplement with different physical properties and no baking application.\n\nWheat germ is placed in the milled category alongside other granular grain-derived products. The category rule tracks physical packing behavior: coarse granular products pack by scoop with air gaps in the same way as flours and whole seeds. The 10 percent category tolerance applies here, and the 2.68 percent observed gap between sources sits comfortably inside it.\n\nNo standards body publishes a bulk density for wheat germ. Codex Alimentarius does not have a dedicated commodity standard for wheat germ at the time of publication. Two independent authoritative sources agree within tolerance, so this entry is held at medium confidence. A third independent source, such as a professional culinary reference or a producer's laboratory measurement, matching within tolerance would move it to high confidence.", "last_reviewed": "2026-09-21" }, { "id": "white-rice", "schema_version": 3, "name": "White rice", "synonyms": [ "long-grain rice", "uncooked rice", "raw rice" ], "category": "milled", "default_state": "uncooked", "confidence": "low", "states": [ { "id": "uncooked", "label": "Uncooked, poured into the cup", "density_g_per_ml": null, "withheld": true, "withheld_reason": "Two sources disagree by 7.0%, over the 5% tolerance for this category.", "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 168877, SR Legacy, 1 undetermined cup = 185 g", "density_g_per_ml": 0.7819 }, { "name": "King Arthur Baking", "ref": "Ingredient Weight Chart, rice (long grain, dry), 1/2 cup = 3 1/2 oz (99 g)", "density_g_per_ml": 0.8368 } ], "verified": "2026-09-15", "last_reviewed": "2026-09-15" } ], "yields": [], "notes": "Two sources, both measuring uncooked long-grain white rice, 7.0% apart. USDA FDC 168877 gives a cup at 185 g, or 0.7819 g/ml, and publishes the same figure for the unenriched record at FDC 169756, so enrichment does not affect the weight. King Arthur's chart gives half a cup at 99 g, or 0.8368 g/ml. Neither source names a method, so the gap cannot be split by method, and neither can be preferred without a third source. The range is published instead of a figure. Rice sits awkwardly between the categories this dataset uses. It is not a liquid, where any two measurements should agree closely, and it is not a milled powder like flour, where clumping makes wide disagreement expected. It is whole hard grains, which pour freely like crystalline sugar but are large enough relative to a cup that how they settle matters: grains bridge against each other and against the wall of the cup, and tapping or pouring from a height changes what fits. That suggests a tolerance wider than the 5% that suits liquids, but no measured evidence was found for how much wider, and setting a category tolerance to make a particular entry publish would be choosing the answer first. Rice is therefore held at the default tolerance and publishes a range until either a third source settles the figure or someone measures how much settling actually changes. Cooked rice is a separate product rather than a state of this one. USDA gives cooked parboiled long-grain at 158 g per cup (FDC 169708), but the grains have absorbed water and roughly tripled in volume, so the two figures describe different substances in the way that butter and whipped butter do. Brown rice is likewise not covered here; King Arthur lists it cooked only. No standards body publishes a bulk density for rice. Grain trading uses test weight, measured in pounds per bushel, which is a different quantity measured by a different apparatus, so it is not counted as a source." }, { "id": "whole-grain-einkorn-flour", "schema_version": 3, "name": "Whole Grain Einkorn Flour", "synonyms": [ "einkorn whole wheat flour", "whole einkorn flour", "einkorn whole grain flour", "einkorn wholemeal flour", "triticum monococcum whole grain flour" ], "category": "milled", "default_state": "standard", "confidence": "high", "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": 0.4058, "sources": [ { "name": "Jovial 100% Organic Einkorn Whole Wheat Flour (USDA Branded, UPC 815421014204)", "ref": "Ingredients: organic whole wheat einkorn flour. Nutrition label: 1/3 cup (32 g), 100 kcal. Extrapolates to 96 g per US cup. Jovial is the dominant US retail brand for einkorn products and effectively defines the US market for this ingredient.", "density_g_per_ml": 0.4058 }, { "name": "Jovial cookbook 'Einkorn: Recipes for Nature's Original Wheat' (author: Carla Bartolucci)", "ref": "Published Whole Grain Wheat Thins recipe specifies '2 cups (192 g) whole grain einkorn flour', extrapolating to exactly 96 g per US cup. Matches the USDA Branded label figure exactly; confirms internal consistency across Jovial's product and their own recipe development.", "density_g_per_ml": 0.4058 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "TL;DR: 1 cup of whole grain einkorn flour weighs 96 grams. High confidence, based on convergence between Jovial's USDA Branded nutrition label and their own published cookbook recipe. This is 20 percent lighter than the all-purpose einkorn flour form (120 grams per cup) because the intact bran creates air gaps between particles.\n\nEinkorn (Triticum monococcum) is the most ancient cultivated wheat species, domesticated in the Fertile Crescent roughly 10,000 years ago. It is botanically distinct from the modern bread wheat (Triticum aestivum) that dominates global flour production. Einkorn is diploid, carrying two sets of chromosomes; modern wheat is hexaploid, carrying six. The two species produce different gluten structures, and einkorn's simpler protein composition is often reported as easier to digest for people who feel poorly after modern wheat, though this is not the same as being safe for celiac disease. Einkorn contains gluten and is not gluten-free.\n\nWhole grain einkorn flour retains the entire kernel: bran, germ, and endosperm are all milled together with nothing sifted out. This distinguishes it from all-purpose einkorn flour, which is sifted to remove most of the bran (analogous to the way modern white flour is sifted from whole wheat). The whole grain form is denser in fiber and micronutrients, produces heartier baked goods with a stronger nutty flavor, and packs less densely per cup because the bran particles are larger and irregular, creating air gaps that reduce bulk density. Jovial ships their product labeled 'Einkorn Whole Wheat Flour' even though calling einkorn 'wheat' in the modern sense is slightly imprecise; the label uses the term familiar to consumers, but this database uses 'whole grain' as the more botanically accurate descriptor.\n\nThe source data converges cleanly at 96 grams per cup. Jovial's USDA Branded Foods entry (UPC 815421014204) lists 32 grams per one-third-cup serving on the nutrition panel, extrapolating to 96 grams per US cup. Jovial's own cookbook, 'Einkorn: Recipes for Nature's Original Wheat' by Carla Bartolucci, specifies '2 cups (192 g) whole grain einkorn flour' in a published recipe for Whole Grain Wheat Thins, which extrapolates to exactly 96 grams per cup. Two independent Jovial data points agree to the gram. This is unusually clean for a specialty flour, and it reflects Jovial's dominance of the US einkorn market: they are effectively the reference brand for this ingredient in North America.\n\nOne data point was rejected. Purcell Mountain Farms lists their organic einkorn flour nutrition panel as '1/2 cup (96g),' which would extrapolate to 192 grams per US cup. That figure is physically implausible; it would exceed the packed density of granulated white sugar, and no whole grain flour observed anywhere approaches it. The most likely explanation is a label error where '1/2 cup' should read '1 cup,' which would give 96 grams per cup and match Jovial exactly. Not included as an accepted source.\n\nCompare to the all-purpose einkorn flour entry at 120 grams per cup: the 20 percent gap between AP and whole grain is real and reflects the packing physics. AP einkorn is mostly endosperm ground fine, which packs tightly; whole grain einkorn contains larger bran fragments that displace endosperm and add interstitial air. This is the opposite pattern from the sweet rice flour and regular rice flour case, where finer milling produced denser packing, because there the finer particles filled voids rather than creating them. King Arthur has no entry for einkorn flour in any form; their chart focuses on modern wheat products.\n\nFor practical baking, weigh whole grain einkorn flour at 96 grams per cup and reduce recipe liquid by 15 to 20 percent when substituting for modern whole wheat flour, per Jovial's own guidance. Einkorn dough absorbs water more slowly than modern wheat and can behave sticky if the recipe is not adjusted. Store whole grain einkorn flour in the freezer to prevent the germ oils from going rancid, which happens faster than with sifted flours." }, { "id": "whole-wheat-flour", "schema_version": 3, "name": "Whole wheat flour", "synonyms": [ "wholemeal flour", "whole grain wheat flour", "atta flour (approximately)", "wholewheat flour" ], "category": "milled", "default_state": "unspecified", "confidence": "medium", "states": [ { "id": "unspecified", "label": "Method not specified", "density_g_per_ml": 0.5072, "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 168893, SR Legacy, 1 undetermined cup = 120 g", "density_g_per_ml": 0.5072 }, { "name": "King Arthur Baking", "ref": "Ingredient Weight Chart, Whole Wheat Flour (Premium 100%), 1 cup = 113 g", "density_g_per_ml": 0.4776 } ], "verified": "2026-09-16", "last_reviewed": "2026-09-16" } ], "yields": [], "notes": "Sources agree within 6.0%, inside the 10% tolerance for the milled category. USDA FDC 168893 gives a cup at 120 g (0.5072 g/ml). King Arthur's Ingredient Weight Chart lists their Premium 100% Whole Wheat Flour at 113 g per cup, or 0.4776 g/ml. Both figures are for hard red wheat whole wheat flour milled from the whole kernel, retaining bran, germ and endosperm in their natural proportions as required by FDA identity standards (21 CFR 137.200). The 6% source disagreement is within the range that measuring method reasonably accounts for on a milled powder. Whole wheat flour behaves differently in a cup than all-purpose flour does. The bran fragments and germ particles are physically larger than the milled endosperm, so they bridge against each other and against the cup wall, and a scooped cup captures more air pockets than a spooned or sifted one. This is why USDA's undetermined-cup figure sits higher than King Arthur's spooned chart figure; USDA likely reflects dip-and-sweep, King Arthur's Recipe Success Guide states their measuring technique for dry ingredients is spoon-and-sweep, and the 6% gap is consistent with the difference the flour entry documents between the two methods on white flour. Whole wheat flour is distinct from several related products with different densities. Whole wheat pastry flour and graham flour are milled from soft wheat rather than hard wheat, and King Arthur lists both together at 96 g per cup on the same chart. Soft wheat produces a finer, lighter flour with lower protein content, better suited to tender baked goods like biscuits and pie crust than to bread. Bob's Red Mill whole wheat pastry flour matches this figure. White whole wheat flour, milled from hard white spring wheat rather than hard red winter wheat, has similar density to standard whole wheat flour at about 113 to 120 g per cup; the difference is in flavor and color rather than weight. Atta flour, the whole wheat flour used in Indian roti, chapati and paratha, is milled from hard durum wheat and typically has finer particle size and slightly higher density than American whole wheat flour. Stone-ground whole wheat flour and roller-milled whole wheat flour weigh similarly per cup despite different particle size distributions, because the total weight of solids per cup depends more on packing efficiency than on grind method. Fresh-milled home-ground flour retains more moisture and can weigh 5 to 10 percent more per cup than commercially milled shelf-stable flour. No standards body publishes a bulk density for whole wheat flour. FDA identity standards specify composition and moisture (maximum 15 percent) but not physical density, and Codex Alimentarius CXS 152-1985 for wheat flour and CXS 199-1995 for durum wheat semolina and durum wheat flour cover the refined products rather than whole grain. The Codex route that resolved olive oil is not available for milled flours. Two sources agreeing within category tolerance, so this entry publishes USDA's larger measure and is held at medium confidence until an independent third is found." }, { "id": "whole-wheat-pastry-flour", "schema_version": 3, "name": "Whole wheat pastry flour", "synonyms": [ "whole wheat pastry flour", "whole-wheat pastry flour", "whole grain pastry flour", "soft whole wheat flour", "graham flour" ], "category": "milled", "default_state": "standard", "confidence": "low", "working_figure": { "grams": 96, "basis": "if you spoon the flour into the cup and level it" }, "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": null, "range_min": 0.4058, "range_max": 0.5072, "withheld": true, "withheld_reason": "King Arthur publishes 96 g/cup and commercial retail labels uniformly publish 30 g per 1/4 cup (back-calculating to 120 g/cup) for the same nominal product. The 25% gap exceeds the 10% milled tolerance. The unanimous 30 g/quarter cup figure across Bob's Red Mill, Whole Foods 365, Hodgson Mill, Jovial, and Arrowhead Mills is not independent measurement but the FDA Reference Amount Customarily Consumed (RACC) labeling convention for flour, applied as a default rather than a measured density. This entry publishes the range 96-120 g/cup to represent the honest span between careful spoon-and-level measurement (KA) and the practical dip-and-sweep cup weight that recipes developed against commercial brands tend to produce.", "sources": [ { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Whole Wheat Pastry Flour / Graham Flour', 1 cup (3 3/8 oz, 96 g). Density 0.4058 g/mL. Represents careful spoon-and-level measurement of whole wheat pastry flour from soft wheat. KA groups this ingredient with Graham flour at the same cup weight despite the two being milled differently (pastry flour has uniformly fine milling; Graham flour has coarsely-ground bran with finely-ground endosperm). Confirmed directly by KA customer service in a documented baker inquiry (Kitchen Stewardship, 2021) where a home baker questioned the low figure.", "density_g_per_ml": 0.4058 }, { "name": "Commercial retail labels (Bob's Red Mill, Whole Foods 365, Hodgson Mill, Jovial, Arrowhead Mills)", "ref": "All five major producers publish the same 1/4 cup = 30 g nutrition label serving, back-calculating to 120 g/cup and density 0.5072 g/mL. This unanimity reflects the FDA Reference Amount Customarily Consumed (RACC) for flour, which sets 30 g as the standard 1/4 cup serving size for labeling purposes, rather than five independent measured densities. Represents the practical cup weight that recipes developed by commercial brands using dip-and-sweep measurement tend to produce, but should be understood as a labeling artifact rather than a physical measurement.", "density_g_per_ml": 0.5072 } ], "verified": "2026-09-21", "last_reviewed": "2026-09-21" } ], "yields": [], "notes": "Whole wheat pastry flour publishes as a range 96 to 120 grams per cup because the two measurement standards in circulation disagree by 25%, well over the 10% milled tolerance, and the disagreement reflects both real product variance and a documented labeling convention rather than one source being wrong. King Arthur publishes 96 g/cup for whole wheat pastry flour (grouped with Graham flour at the same weight in their Ingredient Weight Chart), representing careful spoon-and-level measurement. Commercial retail nutrition labels — Bob's Red Mill, Whole Foods 365, Hodgson Mill, Jovial, and Arrowhead Mills — all uniformly publish 30 grams per 1/4 cup, which back-calculates to 120 g/cup.\n\nThis unanimous label figure looks like independent measurements but is actually a shared labeling convention: the FDA Reference Amount Customarily Consumed (RACC) for flour is 30 grams per 1/4 cup serving, and manufacturers commonly default to this figure rather than measuring their specific product density. The 24-gram spread between KA's 96 and the label 120 therefore represents the honest span between a carefully measured spoon-level cup weight and the practical dip-and-sweep cup weight that recipes developed against commercial brands tend to produce.\n\nUnderstanding why whole wheat pastry flour packs surprisingly lightly requires knowing something about its milling. Pastry flour is made from soft wheat, which has smaller and less compact starch granules than the hard wheat used for regular whole wheat flour or bread flour. Soft wheat starch granules pack less densely at rest. Whole wheat pastry flour also contains bran from the same soft wheat, and pastry-milled bran fragments are finer and fluffier than the coarser bran in regular whole wheat flour. Combined, the soft-wheat endosperm and fluffy bran give whole wheat pastry flour the counterintuitive property of packing lighter than white pastry flour: KA lists white pastry flour at 106 g/cup, ten grams heavier per cup than whole wheat pastry at 96, because white pastry flour has denser endosperm without the airy bran filler.\n\nUSDA FoodData Central entry 168944 (Wheat flour, whole-grain, soft wheat) is the compositional reference for this ingredient but provides no cup portion, only 100-gram, 28-gram (1 oz), and 60-gram (200-calorie serving) sizes. This is typical for USDA whole-grain flour entries, where cup portions are frequently absent for less-common milling types, which is why the site relies on King Arthur for the primary volumetric anchor and cross-validates against the commercial label pattern.\n\nCompared to other flours on the site, whole wheat pastry flour at 96-120 g/cup sits below regular whole wheat flour (113 g/cup, hard wheat with denser starch granules), below all-purpose flour (120 g/cup), and below white pastry flour (106 g/cup) at KA's measurement. Graham flour, which KA groups at the same 96 g/cup weight, is technically a distinct milling with coarsely-ground bran and finely-ground endosperm; the two products happen to converge on cup weight but are not interchangeable for texture in finished baked goods.\n\nCategory assignment is milled, matching all other flours on the site. Whole wheat pastry flour is a fibrous plant particulate with heterogeneous particle sizes (fine soft-wheat starch granules plus coarser bran flakes), which is the defining physical behavior of the milled category.\n\nConfidence is low because the 25% gap between KA and commercial labels exceeds tolerance. For baking accuracy, weigh whole wheat pastry flour rather than measuring by volume. If a recipe was developed by a commercial brand or blogger using dip-and-sweep, use 115-120 g/cup. If a recipe was developed by King Arthur or another spoon-and-level source, use 96 g/cup. Recipe-to-recipe consistency matters more than any single correct figure. This entry represents a moat play for the site: no other cup-to-gram reference explains that the uniform 120 g/cup commercial label figure is an FDA RACC labeling convention rather than a measured density, and no other reference explains why whole wheat pastry flour paradoxically packs lighter than white pastry flour despite containing bran." }, { "id": "wild-rice", "schema_version": 3, "name": "Wild Rice", "synonyms": [ "wild rice", "raw wild rice", "uncooked wild rice", "minnesota wild rice", "cultivated wild rice", "zizania palustris", "zizania aquatica", "north american wild rice" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, dry uncooked, spooned and leveled", "density_g_per_ml": null, "range_min": 0.6763, "range_max": 0.7608, "withheld": true, "withheld_reason": "Two legitimate methodology-driven figures span a real 12.5% gap. USDA Standard Reference for raw wild rice (FDC 169726) lists 160 g/cup based on laboratory loose-fill measurement, and this figure fits the physical prediction from wild rice's extreme grain aspect ratio (12-20mm long × 2-3mm cross-section) and very low moisture (~8%). Producer nutrition labels from Whole Foods 365, Gourmet House, and Gibbs all converge at 180 g/cup, but the convergence reflects the shared FDA Reference Amount Customarily Consumed (RACC) of 45 g per serving for \"Grains, dry, uncooked\" (21 CFR 101.12), not independent physical measurement. Both figures are correct for their conventions; the honest answer depends on whether the recipe used USDA-derived or FDA-RACC-derived source data.", "sources": [ { "name": "USDA SR Legacy", "ref": "Wild rice, raw: 1 US cup = 160 g (169 g/metric cup). Direct USDA nutrient laboratory measurement using loose-fill leveled methodology. Composition: 8% water, 15% protein, 76% carbohydrate, 1% fat — the low moisture and high aspect ratio produce the low cup density.", "fdc_id": 169726, "density_g_per_ml": 0.6763 }, { "name": "Whole Foods 365 Wild Rice", "ref": "Nutrition label: serving size 1/4 cup dry (45 g). Converts to 180 g/cup. Uses the FDA RACC-derived 45 g/serving for uncooked grains rather than independent measurement of quarter-cup weight.", "density_g_per_ml": 0.7608 }, { "name": "Gourmet House Minnesota Cultivated Wild Rice", "ref": "Nutrition label: serving size 1/4 cup dry (45 g). Converts to 180 g/cup. Explicitly labeled \"Minnesota Cultivated\" — the modern paddy-grown Zizania palustris that constitutes ~95% of US retail wild rice.", "density_g_per_ml": 0.7608 }, { "name": "Gibbs Wild Rice", "ref": "Nutrition label: serving size 1/4 cup dry (45 g). Converts to 180 g/cup. Confirms producer-label FDA-RACC convergence across independent brands.", "density_g_per_ml": 0.7608 }, { "name": "King Arthur Baking Ingredient Weight Chart", "ref": "Silent on wild rice specifically. KA's chart lists no rice variety in dry form other than \"Rice (long grain, dry) 1/2 cup, 3 1/2 oz, 99 g\" (198 g/cup, for generic long-grain). No direct KA figure to correct or confirm.", "density_g_per_ml": null } ], "verified": "2026-09-23", "last_reviewed": "2026-09-23" } ], "yields": [], "notes": "TL;DR: Wild rice runs 160 grams per cup by USDA physical measurement but 180 grams per cup on producer nutrition labels; the 12.5% gap reflects a genuine methodology split between USDA's laboratory loose-fill anchor and the FDA reference-amount convention brands use for whole-grain serving sizes, not measurement error.\n\nWild rice is not a true rice but the seed of the aquatic grass Zizania palustris (northern wild rice, native to the Great Lakes region) or Zizania aquatica. The seeds are long, dark, and needle-shaped — grain lengths of 12-20 mm with cross-sections of only 2-3 mm, an extreme aspect ratio that produces more inter-grain void space than any other rice-family grain. Modern commercial wild rice is nearly all paddy-cultivated in Minnesota, Wisconsin, and California, though a small share is still hand-harvested from natural lake stands.\n\nUSDA Standard Reference for raw wild rice (FDC 169726) lists 160 grams per US cup, a direct physical measurement from long-standing USDA nutrient laboratory methodology using loose-fill leveled cup measurement. The figure fits the physical prediction: extreme grain-length-to-diameter ratio produces high void fraction when the grains stack randomly in a cup, and wild rice has very low moisture (~8% by mass, lower than any other rice) which further reduces mass per volume. Both effects push the density down.\n\nProducer nutrition labels converge tightly at 180 grams per US cup — 45 grams per 1/4 cup dry serving. Whole Foods 365, Gourmet House, and Gibbs all publish exactly 45 g per 1/4 cup. This apparent convergence, however, is not independent measurement. The FDA-defined Reference Amount Customarily Consumed (RACC) for \"Grains, dry, uncooked\" per 21 CFR 101.12 is 45 grams, and brands universally list this RACC-derived figure paired with the \"1/4 cup\" household equivalent even when the physical measurement of one quarter cup might weigh somewhat less. When several brands publish identical serving weights of 45 g / (1/4 cup), the shared number often reflects the shared regulatory convention rather than independent physical measurements arriving at the same result.\n\nThe 12.5% gap between USDA's 160 and the producer 180 is best understood as a methodology gap. USDA measures loose-fill leveled cup weight in laboratory conditions. Producer labels report FDA-RACC-derived serving weight, which may correspond to a slightly tapped or packed cup fill. Both are legitimate; neither is wrong. The variance is similar to what the cumin seeds entry documented: whole elongated seeds pack differently by settling method, producing a 13.5% range across measurements of the same seed depending on how the cup was filled.\n\nKing Arthur Baking does not publish wild rice specifically. Its chart lists no rice variety in dry form other than a generic long-grain entry (99 g per 1/2 cup, or 198 g/cup), and wild rice is absent. There is no direct KA figure to correct or confirm; the closest KA generic long-grain figure would substantially overstate wild rice density if extrapolated.\n\nFor practical use, the working figures are: 160 g/cup if the recipe or reference used USDA data, and 180 g/cup if the recipe used producer-label data. When weighing precisely, use the actual carton figure from the specific brand on hand — the 45 g / (1/4 cup) label value is exactly what the recipe author or nutrition tracker probably used. When measuring by cup only, expect the cup to weigh somewhere between 160 and 180 grams depending on how firmly it was filled.\n\nCooking wild rice takes 45-50 minutes at a 1:2.5 rice-to-water ratio (much longer than white rice, comparable to brown rice), and it expands to roughly 3× its dry volume when cooked. This dramatic expansion is why wild rice appears in blended products like Lundberg's Wild Blend, which contains only 4-6% actual wild rice mixed with brown and red rice — the blend cooks in the shorter brown-rice time while the small proportion of wild rice adds visual contrast and chewy texture. When a recipe calls for a wild rice blend rather than pure wild rice, the density is dominated by the majority-brown-rice component (~180-185 g/cup) and the wild rice minority contributes little to overall cup weight." }, { "id": "xanthan-gum", "schema_version": 3, "name": "Xanthan Gum", "synonyms": [ "xanthan", "E415" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, spooned and leveled", "density_g_per_ml": null, "range_min": 0.3247, "range_max": 0.6087, "withheld": true, "withheld_reason": "Producer density varies by 87% across major brands (77-144 g/cup). Bob's Red Mill and Anthony's converge exactly at 144 g/cup; NOW Foods' current label reads 4.8 g/tablespoon (77 g/cup) and explicitly disclaims volume with the language 'this product is sold by weight not volume.' Xanthan gum is a very fine polysaccharide powder that measures inconsistently by volume regardless of brand — heaping vs. level measurements alone can differ by 2-3x. Recipes should specify by weight in grams; volume conversion is not reliable.", "sources": [ { "name": "Bob's Red Mill Xanthan Gum label", "ref": "9 g per 1 tablespoon serving = 144 g/cup. BRM is the dominant retail xanthan gum brand for the home baking market. Their label serving matches Anthony's exactly.", "density_g_per_ml": 0.6087 }, { "name": "Anthony's Xanthan Gum label", "ref": "9 g per 1 tablespoon serving = 144 g/cup. Direct convergence with Bob's Red Mill's label. Anthony's is a keto-market brand and their serving weight matches BRM exactly.", "density_g_per_ml": 0.6087 }, { "name": "Cuisine 2012 / Wikipedia physical chemistry reference", "ref": "'A teaspoon of xanthan gum weighs about 2.5 grams and brings one cup (250 mL) of water to a 1% concentration.' This gives 7.5 g/tablespoon = 120 g/cup, sitting between the NOW label and the BRM/Anthony's cluster. Standard reference cited in molecular gastronomy contexts.", "density_g_per_ml": 0.5072 }, { "name": "NOW Foods Xanthan Gum label (Now Real Food)", "ref": "0.8 g per 1/2 teaspoon serving = 4.8 g/tablespoon = 77 g/cup. NOW explicitly disclaims volume with the label statement 'this product is sold by weight not volume' — a candid admission from a major supplement brand that their volume-weight relationship for xanthan is not stable. This figure is roughly half the BRM/Anthony's cluster, likely reflecting a finer particle size or different measurement methodology (loosely spooned rather than lightly packed).", "density_g_per_ml": 0.3247 } ], "verified": "2026-09-22", "last_reviewed": "2026-09-22" } ], "yields": [], "notes": "Xanthan gum density varies enormously across brands, from about 77 g/cup on NOW Foods' label up to 144 g/cup on Bob's Red Mill and Anthony's labels, an 87 percent spread. NOW's label carries an unusually direct disclaimer — 'this product is sold by weight not volume' — reflecting the fact that this very fine polysaccharide powder measures inconsistently by volume regardless of brand or care taken.\n\nXanthan gum is a polysaccharide produced by fermenting sugar with the bacterium Xanthomonas campestris, then drying and milling the resulting gel to a fine powder. It was approved as a food additive in 1968 and carries the E number E415 in Europe. In the kitchen, it works as a thickener, emulsifier, and gluten mimic in gluten-free baking. A tiny amount goes a long way — a 1 percent concentration by weight in liquid produces a substantial viscosity increase, and typical gluten-free baking usage is roughly 1/4 teaspoon of xanthan per cup of gluten-free flour.\n\nKing Arthur has no xanthan gum entry in their Ingredient Weight Chart at all, so this catalog entry is based entirely on producer nutrition labels and one physical chemistry reference cited in molecular gastronomy sources.\n\nThe density spread across the four sources sampled forms three tiers. Bob's Red Mill and Anthony's converge exactly at 9 grams per tablespoon (144 g/cup), and since BRM dominates retail this pair likely represents what most home bakers actually encounter on the shelf. The molecular gastronomy reference sits at 2.5 grams per teaspoon (120 g/cup), plausibly reflecting a lightly-scooped rather than lightly-packed measurement. NOW Foods' current label lists just 0.8 grams per half teaspoon (77 g/cup), less than half the BRM/Anthony's figure. Nutricost, another major supplement brand, carries a similar volume-disclaimer note on their pouches.\n\nThe physical reason for the density variance is that xanthan gum is a very fine, low-bulk-density powder with an unusually strong tendency to trap and lose air depending on how it is handled. Particle size grading varies between manufacturers, and finer grades pack differently than coarser ones. Xanthan is also hygroscopic, so a bag stored in humid conditions weighs more per volume than the same bag stored dry.\n\nOn top of the between-brand variance, xanthan gum has severe within-sample measurement variance. A heaping teaspoon can weigh two to three times a leveled teaspoon of the same product from the same bag. Because the powder is so fine and clumpy, most home cooks measure it inconsistently even when trying to be careful.\n\nPractical guidance: for typical gluten-free baking use, where the entire recipe calls for 1/4 to 1 teaspoon of xanthan, the density variance rarely matters at the outcome level — even a 100 percent measurement error on 1/4 teaspoon is only about half a gram in one direction or the other. Serious professional or scaled formulations should specify xanthan gum by weight in grams and use a scale accurate to 0.1 gram. The middle of the range around 120-144 g/cup is a defensible fallback for volume-only recipes, but bakers should not expect precise reproducibility between brands.\n\nCommon substitutes: guar gum works 1:1 by weight with xanthan in most baking applications and has similar density behavior. Psyllium husk powder can substitute at roughly 2:1 (twice the psyllium by weight) and is often preferred for gluten-free bread specifically." }, { "id": "yeast", "name": "Baker's yeast", "aliases": [ "active dry yeast", "instant yeast", "rapid rise yeast", "quick rise yeast", "ADY", "IDY" ], "category": "milled", "schema_version": 3, "confidence": "medium", "default_state": "standard", "states": [ { "id": "standard", "label": "Standard (dried, active or instant)", "density_g_per_ml": 0.6255, "verified": "2026-09-17", "last_reviewed": "2026-09-17", "sources": [ { "name": "USDA FoodData Central", "ref": "FDC 368813 (Yeast, baker's, active dry, SR Legacy). Published: 1 cup = 148 g. Density 0.6255 g/mL. Composition: ~5% water, ~41% carbohydrate (of which ~27% fibre), ~40% protein, ~8% fat.", "density_g_per_ml": 0.6255 }, { "name": "King Arthur", "ref": "Ingredient Weight Chart, 'Yeast (instant)'. Published as 1 tbsp = 9 g, 2 1/4 tsp = 7 g, and 2 tsp = 6 g — all consistent at approximately 3 g per teaspoon, extrapolating to 144 g per cup and 0.6086 g/mL.", "density_g_per_ml": 0.6086 } ] } ], "yields": [], "notes": "Yeast for baking comes in three forms in common use — active dry, instant, and fresh (cake) yeast — and this entry covers the two dried forms, which measure essentially the same by weight per cup. Active dry yeast has slightly larger granules that traditionally need proofing in warm water before use; instant yeast has finer granules that can be added directly to the flour. Both are the same organism, Saccharomyces cerevisiae, dried to preserve activity, and both weigh close to 3.1 grams per teaspoon or 148 grams per cup.\n\nUSDA FoodData Central publishes 1 cup of active dry yeast at 148 grams (FDC 368813, Yeast, baker's, active dry). That gives a bulk density of 0.6255 grams per millilitre. King Arthur's ingredient weight chart publishes instant yeast at 3 grams per teaspoon (from three different partial-cup measurements, all consistent), which extrapolates to 144 grams per cup and 0.6086 grams per millilitre. The two figures agree within 2.7 percent, well inside the 10 percent tolerance we apply to the milled category.\n\nThe substitution ratio between the two dried forms is 3:4 by volume — 3 parts instant equals 4 parts active dry — but this reflects a difference in leavening potency, not a difference in weight. Instant yeast is somewhat more concentrated per volume because the finer granules pack more densely per teaspoon and because more of each granule is exposed and active. Per gram, instant is modestly more effective at leavening than active dry, though the exact ratio varies by manufacturer.\n\nFresh yeast (also called cake yeast or compressed yeast) is a different product not covered by this entry. It is approximately 70 percent water and much less dense in a measuring cup than dried yeast, though it is rarely measured by volume because it comes in solid blocks. The conventional substitution is 3 grams fresh yeast equals 1 gram active dry yeast equals 0.75 gram instant yeast.\n\nStandard US supermarket packaging for dried yeast is the 1/4 ounce (7 gram) individual packet and 4 ounce (113 gram) jars. Most home baking recipes calling for 'one packet' mean 7 grams, which is 2 1/4 teaspoons of either active dry or instant. When a recipe calls for 'yeast' without specifying which type, active dry is the more common assumption in older American recipes and instant is more common in modern European and professional recipes.\n\nBaking practice differences: active dry yeast should be proofed (dissolved in warm water at 40-43°C for 10 minutes) before mixing to confirm the yeast is alive and to soften the granules. Instant yeast can be added directly to the dry ingredients and hydrates as the dough is mixed. Some modern sources argue that active dry yeast no longer needs proofing because manufacturers have reduced the granule size enough that it hydrates on its own; the traditional proofing step still works and does not hurt.\n\nRelated products this entry does not cover: nutritional yeast (deactivated yeast used as a savoury seasoning, has no leavening power and different density around 100 grams per cup), brewer's yeast (used in beer brewing, similar organism but different processing), and wild yeast starters (naturally occurring cultures used in sourdough, not commercially standardised and not measured by weight in the same way).\n\nFDA regulates baker's yeast under general food safety rules and permits its use as a direct food additive under 21 CFR 172.896 (Yeast preparations). Codex Alimentarius does not have a specific standard for baker's yeast. Neither publishes a bulk density.\n\nThe category here is 'milled' because dried yeast behaves like other fine granular powders in a measuring cup — it clumps slightly, bridges over air pockets, and its density depends on scoop method. The 10 percent tolerance applies. Both sources sit well inside it.", "last_reviewed": "2026-09-17" }, { "id": "zucchini-shredded", "schema_version": 3, "name": "Zucchini, shredded", "synonyms": [ "shredded zucchini", "grated zucchini", "courgette shredded", "shredded courgette", "grated courgette" ], "category": "milled", "default_state": "standard", "confidence": "low", "states": [ { "id": "standard", "label": "Standard, loosely packed", "density_g_per_ml": null, "range_min": 0.5114, "range_max": 0.634, "withheld": true, "withheld_reason": "Zucchini water content varies substantially by ripeness, size, storage age, and growing conditions, giving a genuine 24% density spread across the range 121-150 g/cup. King Arthur's own chart acknowledges this by publishing the entry as a range (unusual for their chart, which is otherwise dominated by single-figure entries). No single value is defensibly correct across all fresh zucchini.", "sources": [ { "name": "King Arthur Baking Company – Ingredient Weight Chart", "ref": "1 cup = 4 1/4 to 5 1/4 oz = 121 to 150 g. KA publishes this entry as an explicit range, one of only a handful of range-published entries on their chart (alongside fresh blueberries, sliced rhubarb, and the tropical fruit blend). The range reflects genuine moisture-content variance across zucchini pieces rather than measurement uncertainty.", "density_g_per_ml": 0.5727 }, { "name": "King Arthur Baking blog – 'Baking with zucchini'", "ref": "'Our Ingredient Weight Chart lists 1 cup of zucchini as weighing anywhere between 121 and 150 grams.' KA's baking blog explicitly reinforces the chart range and adds critical operational guidance: bakers should NOT squeeze water from shredded zucchini before adding it to batter or dough, because zucchini quick-bread recipes are formulated to accommodate the water content — squeezing produces overly dry baked goods.", "density_g_per_ml": 0.5727 }, { "name": "CupOrGram baking conversion database", "ref": "135 g/cup baseline, with a documented common range of approximately 7% (roughly 125-145 g/cup) accounting for piece size and moisture. Their published value sits at the midpoint of KA's range.", "density_g_per_ml": 0.5706 }, { "name": "Cups & Grams baking conversion database", "ref": "135 g/cup, matching CupOrGram's baseline exactly. Aggregator note: shredded zucchini is heavier per cup than all-purpose flour (135 vs 120 g/cup), which surprises many bakers who assume vegetables are 'light.'", "density_g_per_ml": 0.5706 } ], "verified": "2026-09-22", "last_reviewed": "2026-09-22" } ], "yields": [], "notes": "Shredded zucchini weighs 121-150 g/cup depending on the individual zucchini's water content. King Arthur's ingredient weight chart acknowledges this by publishing the entry as an explicit range rather than a single figure, a rare move on their chart. Aggregator sources cluster near the middle at about 135 g/cup.\n\nZucchini is a summer squash with high water content (roughly 94-95% water by weight), and that water content is the source of the density spread. A young, tight-fleshed zucchini right off the plant weighs less per cup shredded than an older, larger zucchini whose flesh has accumulated more water. Storage age matters too — a zucchini that has spent a week in the refrigerator may have lost moisture through the cut ends and skin. All of this variance is real and inherent to the ingredient rather than something the baker can control by technique.\n\nKing Arthur has this ingredient in their chart at 121-150 g/cup, and unlike many entries where this catalog has corrected KA's figure, no correction is warranted here. KA's range is honest and matches three other aggregator sources that publish a midpoint around 135 g/cup. This is one of the cleaner KA entries — they engaged with the actual product variance rather than picking a defensible-looking single number.\n\nCritical operational guidance from King Arthur's baking blog: do NOT squeeze water out of shredded zucchini before adding it to batter. Zucchini quick breads, muffins, and cakes are formulated to absorb the released water during baking — that water is part of the recipe's hydration budget. Squeezing produces overly dry baked goods. This is the opposite of what many bakers instinctively do when they see the wet pile of shreds on the cutting board. The rule holds even when the shredded zucchini has sat for 10 to 20 minutes and pooled water in the bowl; the recipe still wants that water.\n\nMeasurement guidance: pack shredded zucchini loosely into the measuring cup rather than pressing it down. Pressing compacts the fibers and packs more mass into the cup than the recipe assumes. If the recipe specifies weight in grams, weigh; if it specifies cups, spoon in loosely and level off with a knife or your fingers.\n\nSubstitutions: shredded yellow summer squash works 1:1 by weight or volume with nearly identical moisture behavior. Grated carrots are the next-closest substitute in quick breads and muffins, though carrots run slightly denser at about 100-110 g/cup and contribute both color and sweetness that zucchini does not — expect the finished bake to be darker and sweeter. Grated apple can substitute in some quick breads but shifts moisture release timing during baking, since apple pieces hold their water longer than zucchini and release it in a burst late in the bake.\n\nFor volume-only recipes without gram weights, using a mid-range figure around 135 g/cup as a mental default is defensible. For weight-specified recipes, weigh — the specified gram figure is what the recipe developer tested against and is more reliable than any volume estimate." } ]