A printed food date can look like a complete answer to whether an item belongs in dinner. In practice, the words around the date and the way the food has been stored also matter. Different labels serve different purposes. Begin by reading the whole package, including refrigeration instructions and any direction about using the food after opening.

Distinguish quality language from safety instructions

USDA explains that many familiar date labels describe expected quality or help retailers manage stock. A “best if used by” date commonly concerns quality, while “sell by” information is intended for store inventory. Neither wording is a substitute for proper handling. Do not turn that distinction into a rule that every date can be ignored: follow applicable safety instructions and product-specific directions.

Infant formula is an important exception to casual date interpretation. Do not buy or use it after its use-by date. Questions about a particular product should be directed to its manufacturer or the relevant food-safety authority rather than answered by comparing it with an unrelated item in the cupboard.

Ask what happened after purchase

Was the item stored as directed? When was it opened? Has a perishable product spent too long outside safe temperature control? Those questions can matter even when the printed date is still in the future. A reassuring date does not reverse improper handling, and unsafe food does not always have an obvious bad smell or appearance.

Keep original labels when transferring food to another container, or record the information needed for safe use. A decorative storage jar with no product name, instructions or opening date can make decisions harder. The information should remain easy to connect with the food, especially when different household members unpack groceries and cook.

Separate opened food from unopened stock

An unopened package and an opened one may have different instructions. Write an opening date where it helps you follow them. Use a clear format that everyone in the household reads the same way. A note such as “opened Oct 24” can be more useful than an unexplained number written on the lid.

Arrange storage so suitable older items are visible before more recent purchases. This can help with meal planning, but the arrangement is not itself a safety test. Check the package and the food's history rather than assuming the front item must always be used next.

Resolve uncertainty with the right question

When looking up guidance, identify the actual food, whether it is opened or cooked, and how it has been stored. Broad advice about canned beans cannot answer a question about cooked chicken. A product's name and storage condition make manufacturer or food-safety guidance much more useful.

Avoid tasting uncertain food to test whether it is safe. If its handling history is unknown or there is a safety concern, take the cautious course appropriate to the food. Reducing waste begins with smaller purchases, clear labels and realistic plans; it should not require guessing about questionable leftovers.

Make labels useful before the decision becomes urgent

During the next refrigerator or cupboard check, notice where information is routinely lost. Perhaps the package is discarded too soon, or opening dates are never recorded. Fixing that small part of the workflow can make future decisions clearer than memorizing a long list of dates that may not apply to the foods you actually have.