Most grocery date labels track quality, not a safety cutoff
For most packaged foods, a printed date is not a federally mandated expiration date. Federal law generally does not require these dates; manufacturers usually add them voluntarily. The main federal exception is infant formula, which must carry a “use by” date tied to the period during which the maker guarantees its nutrient content and quality.
On other foods, phrases such as “best if used by” usually indicate when a product is expected to taste or feel its best—not the moment it suddenly becomes unsafe. Flavor, texture, color, or freshness may decline over time, even when the food has been stored properly. A “sell by” date is primarily a cue for stores managing stock, rather than a deadline for shoppers to eat the food.
Why the wording matters
Dates help manufacturers set expectations and help grocers rotate inventory. But when shoppers read every date as a safety limit, food that is still usable may be thrown away. The date also cannot account for every handling condition: a product left warm too long can become unsafe before its label date, while one stored correctly may remain acceptable afterward.
The practical distinction is between a quality promise and a safety judgment. For most foods, the label gives a useful guide to peak quality, not a universal verdict on whether the food is safe to eat.
