2. Dates are open to interpretation

Except for baby formula and food, product expiration dates are not required by Federal regulations (some states, however, have their own rules requiring product dating). Labels that give a “Best if Used By” date are more of a suggestion than a safety issue—the food will taste best if eaten by the date on the label, but won’t necessarily be unsafe if eaten after that. If a product is stamped with a “Sell-By” date, that is how long the store should display it. Once you bring it home, perishable products (like meats) should be kept refrigerated and used within a few days.