Malted milk powder

One US cup of malted milk powder weighs between 84 and 184 grams (3 to 6.5 ounces), depending on how the cup is filled and which source measured it. That range is the answer; a single number would not be. Every figure behind it is below, with the method each source used.

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.

Malted 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.

The 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.

The 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.

The 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.

Physically, 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.

For 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.