Active Yeasts

Active yeasts — including baker's yeast, brewer's yeast in active form, and other live yeast cultures used in fermentation — are classified under a single 10-digit line (2102100000) and serve as a critical input for the baking, brewing, winemaking, and bioethanol industries. Canada and Mexico are the leading US suppliers, benefiting from proximity and integrated North American food-manufacturing supply chains. FDA regulates imported active yeast as a food ingredient, and shipments from approved establishments must meet microbiological and labeling standards. Importers should verify that live-culture viability is maintained through cold-chain logistics, as degradation can affect both product performance and classification relative to inactive yeast under heading 210220.