How to Determine Serving Size (RACC)

The most common serving-size misconception: that you pick a serving size that makes your numbers look good. You don't. FDA sets Reference Amounts Customarily Consumed (RACC) for every food category, and your label's serving size must be determined from them (21 CFR 101.9(b)(2), 101.12).

What RACC looks like

RACCs are based on national food-consumption surveys — the amount people actually eat per occasion, not what anyone recommends. Examples from the official table (21 CFR 101.12(b)):

• Cookies — 30g
• Breads — 50g
• Muffins — 110g
• Jams, jellies, honey — 1 tablespoon
• Sauces for dipping — 2 tablespoons
• Snack mixes — 30g
• Carbonated beverages — 360 mL

Your serving size is expressed as a household measure (like "2 cookies") closest to the RACC, with the gram weight in parentheses.

Servings per container

Divide net contents by the serving size, then round per 101.9(b)(8): to the nearest whole number, except between 2 and 5 servings, where you round to the nearest 0.5 and use "about" — e.g., "about 3.5 servings per container".

Small packages count as one serving

A package containing less than 200% of the RACC and sold individually is a single-serving container — the whole package is one serving, whatever the math says (101.9(b)(6)). A 16 oz drink is one serving because people drink the bottle.

When you need two columns

Packages holding 200%–300% of the RACC generally need a dual-column label: per serving AND per package (101.9(b)(12)(i), subject to its exceptions). A 75g cookie pack is 2.5 times a 30g reference amount. Check the package-specific rules before deciding whether a single-column format is suitable.

Worked example: portions from a finished batch

Suppose a finished batch weighs 720g, each cookie weighs 15g, and you have verified that 2 cookies (30g) is the appropriate serving declaration for your product. The arithmetic is:

Step	Calculation	Result
Cookies in the batch	720g ÷ 15g	48 cookies
Servings in the batch	48 cookies ÷ 2	24 servings
Servings in a 180g package	180g ÷ 30g	6 servings

In the generator, enter what one container holds (6 servings per container) and, under "Containers per batch", that the batch fills 4 containers. The nutrients are then divided by the 24 servings in the whole batch, while the label prints the 6 servings a customer gets in one container. See the bakery recipe example for the ingredient-to-label workflow.

These are illustrative weights, not a universal serving recommendation. Finished yield helps you check portions; it does not automatically account for oil uptake, nutrient losses, or other processing changes.

Practical takeaway

Check your product category and package against the cited FDA rules, weigh your finished batch, and determine the portion and household measure before entering them in the generator. Labelara uses the serving input you provide; it does not decide the legally appropriate serving size for you. Read the calculation methodology for how ingredient weights, servings, and finished yield are handled.