Last verified 21 Sept 2026 · generated from 21 CFR 101.9(b) and 101.12(b) by the NutriLabels serving engine · Sources
Baking soda serving size: 1/8 tsp (1g). FDA files baking soda under “Baking powder, baking soda, pectin”, whose reference amount customarily consumed (RACC) is 0.6 g. The serving on your Nutrition Facts panel is the household measure closest to that reference amount, written as the measure followed by its metric weight.
The gram weight follows what the market actually declares: 47 of 50 baking soda products in USDA’s FoodData Central Branded Foods database (94%) print 1/8 tsp (1 g). Your own product’s weight of 1/8 tsp is what goes on the label; the app asks you to weigh it so the number is yours.
The declaration
| FDA category | Miscellaneous: Baking powder, baking soda, pectin |
| Reference amount (RACC) | 0.6 g |
| FDA label statement | __ tsp (__ g) |
| Serving size declaration | 1/8 tsp (1g) (market convention, weigh to confirm) |
| Single-serving container | Any package under 1 g (0 oz) is one serving: the whole package is the serving size (21 CFR 101.9(b)(6)). |
| Dual-column panel | Packages holding 1 g–2 g (0 oz–0.1 oz) must show a second column for the whole package (21 CFR 101.9(b)(12)). |
Servings per container
| Package | Serving size | Servings per container |
|---|---|---|
| 8 oz (227 g) | 1/8 tsp (1g) | about 227 |
| 12 oz (340 g) | 1/8 tsp (1g) | about 340 |
| 16 oz (454 g) | 1/8 tsp (1g) | about 454 |
| 24 oz (680 g) | 1/8 tsp (1g) | about 680 |
| 32 oz (907 g) | 1/8 tsp (1g) | about 907 |
Servings are rounded exactly as 21 CFR 101.9(b)(8) requires: to the nearest whole number, except between 2 and 5 servings, which round to the nearest half; “about” marks any rounding.
What this means for your label
- Declare the serving as 1/8 tsp followed by its weight in grams, for example “1/8 tsp (1g)”.
- Cups are written in 1/4- or 1/3-cup steps; tablespoons as 1, 1 1/3, 1 1/2, 1 2/3, 2 or 3; teaspoons as 1/8, 1/4, 1/2, 3/4, 1 or 2 (21 CFR 101.9(b)(5)(i)). Any other increment is not permitted.
- A package under 1 g is one serving no matter what: the panel reads “1 serving per container” and the serving size is the whole package.
- All the nutrient values on the panel are per this serving, rounded by 21 CFR 101.9(c). Change the serving and every number changes with it.
Free to build and preview. The print-ready label is $29 for one product, with the serving size, ingredient statement and allergen declaration worked out from the regulation.
Also covers
pectin · yeast · leavening: all filed under the same FDA category, so the same serving applies.
Related serving sizes
- Baking powder: 1/8 tsp (1g)
Sources
- 21 CFR 101.12: Reference amounts customarily consumed per eating occasion (Table 2).
- 21 CFR 101.9(b), serving size: (b)(2) the three procedures, (b)(5) how the measure is written, (b)(6) single-serving containers, (b)(8) servings per container, (b)(12) dual column.