Read the words next to the date
A bare date copied into a pantry list loses important context. Best before, use by, packed on and opened on are not interchangeable. Preserve the wording, the product identity and any instructions such as refrigerate after opening or use within a stated number of days.
This guide focuses on household decisions in the United States and explicitly notes California and UK differences. Do not use a general internet rule to override a manufacturer’s safety instruction, a recall or the guidance where you live. Food categories and local rules can have exceptions.
U.S. federal guidance is not a universal permission slip
USDA’s Food Product Dating guidance describes common quality dates and explains that many dates are not federal safety deadlines. Its descriptions include best-if-used-by wording for quality and sell-by wording used for store inventory. Infant formula is a specific exception: do not buy or use it after its use-by date.
That federal explanation should not be shortened to “all food dates are optional” or “use by never means safety.” State requirements and product instructions matter. In particular, California now distinguishes quality and safety wording in its standardized date-label rules.
Sources: USDA FSIS: Food product datingFDA: Infant formula questions and answers
California and the UK make the distinction explicit
California’s Department of Food and Agriculture describes standardized quality wording such as “BEST if Used by” and safety wording such as “USE by” under rules beginning July 1, 2026. Its guidance also addresses consumer-facing sell-by dates and exceptions. Treat the safety wording as meaningful rather than applying an older blanket rule about U.S. dates.
In the UK, the Food Standards Agency says a use-by date is about safety: do not eat food after it, even if it looks and smells fine. Best-before dates concern quality. These are not the same instructions as an undifferentiated summary of U.S. federal practice.
| Context | Quality wording | Safety point |
|---|---|---|
| U.S. federal guidance | Common best-if-used-by wording | Check the specific product and local rules; infant formula has a required use-by date |
| California guidance | BEST if Used by | USE by distinguishes safety from quality |
| UK FSA guidance | Best before | Do not eat food after its use-by date |
Sources: California CDFA: Food date labelingUK Food Standards Agency: Food safety and date labels
A future date does not cancel a storage problem
Imagine two identical yogurt containers with the same printed date. One has been stored as directed; the other spent an unknown length of time in a hot car. The label cannot make their storage histories equivalent. Likewise, a sealed product’s printed date does not necessarily describe how long it lasts after opening.
Use the package instructions and food-specific storage guidance alongside the date. U.S. FoodSafety.gov provides a cold-storage chart for different foods. Where there is a safety date, follow it. Where there is a quality date, assess the appropriate guidance rather than automatically discarding the food or automatically declaring it safe.
Do not taste questionable food to decide whether it is safe. A normal appearance or smell cannot rule out harmful contamination. If the handling history is unknown, a pantry app cannot reconstruct it from a receipt or a photograph.
Sources: FoodSafety.gov: Cold food storage chartUK government: Food safety and hygiene guidance
Keep a date record that helps you act sooner
Record the original label as written, then add opened-on or cooked-on information separately. For an item you want to use soon, choose a meal before the relevant deadline instead of waiting for the reminder to become urgent. If freezing is suitable, follow the product’s instructions and label the container with what it contains and when it was frozen.
A use-first area can make this visible to everyone in the household. Keep a note for raw proteins that must remain separately contained. Choose recipes around foods that are safe and suitable to use, not around an assumption that cooking can repair every storage problem.
The Pantry’s date and use-soon information can help organize that decision. It is a record and a prompt, not a food-safety certification. When the label or local guidance is unclear, consult the manufacturer or the relevant food-safety authority for that product.
Common questions
Does best before mean unsafe afterward?
A best-before date generally concerns quality, but it is not enough information to decide safety. Check the product, condition, storage history, instructions, recalls and local guidance.
Do date labels work the same in every country?
No. UK use-by dates are safety deadlines, and California distinguishes quality and safety wording. U.S. federal guidance describes common date terms but does not erase product-specific or state requirements.
