Turn a documented portion into grams
USDA SR Legacy record 168936, all-purpose enriched unbleached white wheat flour, lists a 1-cup portion at 125 g. Two of those source portions therefore represent 250 g. This does not establish a universal flour density or a weight for every cup size.
Three complementary food references
This catalogue contains 7,793 SR Legacy records, 469 Foundation records and 5,432 FNDDS survey food records. The USDA documentation explains how their purposes and methods differ. SR Legacy is a final historical release. Foundation describes basic foods and analytical data, but often lacks household portions. FNDDS describes foods used in US dietary surveys, including prepared dishes.
Use the right evidence for your bakery
These are US food references, not worldwide brand specifications or current supplier prices. No ingredient price is supplied or inferred. We preserve separate food IDs and source descriptions instead of merging similarly named foods. Some records have no usable portion weights or nutrient values. Unknown values are never presented as zero.
Sources, dates and privacy
Downloads came from USDA FoodData Central on October 4, 2026 and are public domain under USDA’s CC0 terms. The selected catalogue loads only when this page is opened; category details load on selection. Search terms and portion calculations stay in your browser. View versions, checksums and file counts.
What about nutrition and allergens?
Selected records include source protein, fat, carbohydrate and energy values per 100 g when present. Energy methods remain separate. These figures do not produce a regulatory recipe label, account for cooking retention or identify allergens. Check actual supplier specifications and the requirements where you sell.