A U.S. cup of unsweetened cocoa powder weighs 84 grams, or 3 ounces. That follows the King Arthur Baking chart, which lists unsweetened cocoa at 42 grams per ½ cup. Dutch-process and natural cocoa are close enough in a cup that a scale is still the better tool if the recipe gives grams.
Quick conversion
| Measure | Equals |
|---|---|
| 1 cup unsweetened cocoa powder | 84 g (3 oz) |
| 1/2 cup unsweetened cocoa powder | 42 g (1½ oz) |
| 1/4 cup unsweetened cocoa powder | 21 g |
| 1 tablespoon unsweetened cocoa powder | about 5 g |
The tablespoon row is 84 grams divided by 16, rounded to the nearest gram. Spoon cocoa lightly into a dry cup and level it; scooping packs the powder and can push the cup well past 84 grams. Related: grams to cups, powdered sugar (another ingredient that changes when sifted) and the kitchen measurement conversion chart.
Spoon, level, or sift
Cocoa clumps easily. Sifting or stirring it first, then spooning it into the cup, keeps the 84-gram figure honest. Dutch-process cocoa is treated with alkali and is usually darker, but its cup weight is in the same range as natural unsweetened cocoa. If a chocolate cake is dry or bitter, an over-packed cup of cocoa is a common cause.
Cocoa is one of the easiest ingredients to over-measure because it is fine, dusty and easy to compact. If you dip the cup into the container, you can easily add an extra tablespoon or more of powder, which is 5 grams or extra bitterness in a cake. When a recipe lists “40 grams cocoa,” that is a little less than a packed half cup and is worth weighing rather than rounding to a full half cup.
If you are converting a recipe that lists ounces, 3 ounces of unsweetened cocoa is one leveled cup. For a quarter-cup in a brownie recipe, 21 grams is the number to weigh.
Frequently asked questions
How many grams are in a cup of cocoa powder?
A U.S. cup of unsweetened cocoa powder is 84 grams, or 3 ounces, based on King Arthur Baking’s 42 grams per ½ cup.
Do Dutch-process and natural cocoa weigh the same per cup?
They are close enough for most recipes. Weigh 84 grams if you want the same amount either way.
Should I sift cocoa powder before measuring?
Sifting or stirring first helps you avoid packing lumps into the cup. Then spoon and level, or weigh 84 grams and sift after.
Helpful kitchen tools
- OXO Good Grips 11-Pound Digital Kitchen Food Scale — Weighs in grams and ounces, with a tare (zero) button.
- OXO Good Grips Stainless Steel Measuring Cups and Spoons, 8-Piece Set — Dry cups (1/4, 1/3, 1/2 and 1 cup) and spoons with etched marks.
- OXO Good Grips 8-Inch Double Rod Strainer — A fine-mesh strainer for sifting powdered sugar or cocoa.
- Kitchen Conversion Chart Magnet (AKS Magnets) — An 11-by-8.5-inch fridge magnet for volume and weight conversions.
As an Amazon Associate I earn from qualifying purchases.
Leave a Reply