The yogurt looks fine. The date says yesterday. Into the bin it goes, along with a quiet sense that you did the responsible thing. Most “best by” dates on American packages are quality suggestions, not federal safety deadlines — and USDA says date confusion is one reason good food gets thrown away. The calendar on the carton is often a manufacturer’s guess about peak flavor, printed in a font that looks like law.
Infant formula is the major federal exception: it has a required use-by date related to nutrient content. For meat, poultry, and egg products, dating is voluntary if it is truthful and explained. That is not how it feels at 9 p.m. in front of the fridge.
Does best by mean the food is unsafe?
Usually, no. USDA’s Food Safety and Inspection Service is blunt: dates on those products are about quality, not safety. Foods that show no signs of spoilage may still be wholesome past a “Best if Used By” date. The agency has urged manufacturers that choose to date products to use that phrase because research found consumers read it as quality, not a poison clock.
USDA estimates that 30 percent of the food supply is lost or wasted at the retail and consumer levels. Not all of that is a misread date. Plenty of it is. “Sell by” is a stock-rotation hint for stores. “Use by” sounds like a hard stop. “Best if used by” is the phrase FSIS prefers. Packages still mix the language. You are not foolish for being confused. You are responding to a label that was never standardized as a safety system.
Spoilage is a sensory event. Sour milk, slimy lunch meat, a swollen can, mold that is not part of the food — those are messages. A date without those signs is a suggestion. Perishable food still needs the refrigerator, and leftovers still need a clock you can explain, meaning how many days since you cooked them. The printed date does not replace that judgment. It often replaces it badly.
Why do grocery dates waste so much food?
Because liability culture and marketing both love a number. A tight date can push you to buy a second unit “just in case.” Retailers pull product that is still edible. Households copy the behavior at home. USDA and FDA have circled the same problem for years: too many phrases, not enough shared meaning. Industry groups have tried voluntary uniformity. You can still find three wordings in one freezer drawer.
There is a legitimate safety conversation about highly perishable foods and about people at higher risk of foodborne illness. That conversation is keep it cold, cook it through, and when it smells wrong throw it out. It is not “the ink on the yogurt cup has spoken.” If you are pregnant, older, or immunocompromised, you already have reasons to be conservative with deli meats and leftovers. A best-by stamp does not add new microbiology. It adds anxiety.
Canned and dry goods are where the waste looks especially silly. A can of beans past a quality date is not a science experiment if the can is intact. Pasta does not turn into a pathogen at midnight. Use your eyes. The date was about the company’s preferred texture, not a federal raid.
How should you read a date label?
- Treat “best if used by” as peak quality. Open, smell, look.
- Keep the fridge cold and store leftovers in shallow containers.
- Freeze meat and bread before quality drops if you will not use them soon.
- Infant formula is different — follow that use-by date.
- Donate surplus through channels that know the rules; wholesome food past a quality date can still feed someone.
Wasting food is not a virtue. It is a tax you pay to a calendar that was never your physician. Use your senses, your fridge, and a little humility about ink. The safest date in the kitchen is still the one you can smell.
