Raspberries (fresh)

One US cup of raspberries (fresh) weighs 123 grams. Going the other way, 100 grams is about 0.81 cups.

Also called fresh raspberries, raspberries, whole raspberries, raspberries whole, red raspberries.

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).

What 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.

The 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.

Compared 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.

Category 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.

Confidence 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.