Read food date labels: quality versus safety
Best-if-used-by, sell-by and use-by labels differ; infant formula needs special care.
US FDA and USDA guidance explains that many U.S. food date labels refer to peak quality, not a guarantee of safety. Storage temperature, recalls, damaged packaging and spoilage matter independently of dates. Never use infant formula after its use-by date. Food labels and laws differ across countries; follow local rules.
