Many of us have stared at a carton of milk or a package of meat, wondering if the expiration date means we must throw it out. Most people assume that once the printed date arrives, the food becomes unsafe—but expiration dates are usually about quality, not safety. Understanding what these labels actually mean can save money, reduce stress, and prevent unnecessary waste.

The confusion comes from the fact that expiration labels are not standardized. Terms like “Best If Used By,” “Use By,” and “Sell By” sound strict, but they serve different purposes.
Best If Used By: indicates peak flavor or texture, not safety.
Use By: also refers mostly to quality for most foods.
Sell By: is meant for stores, not consumers.

Because these labels appear serious, many people throw away perfectly good food. This contributes to a huge problem—about 30–40% of food in the U.S. is wasted each year, often because consumers misunderstand date labels. That wasted food also represents wasted water, energy, and money.
Fortunately, reducing waste is simple. Proper storage—such as using airtight containers, keeping the refrigerator cold enough, and freezing items you won’t use soon—keeps food fresh longer.

And your own senses matter: if something smells bad, looks strange, or feels off, discard it. But if it looks normal and has been stored well, it’s often safe past the printed date.Learning how to evaluate food wisely helps your budget and the environment. Next time you see an expiration date, don’t rush to toss the item—take a closer look first.