A use-by date is about safety. It appears on perishable foods where harmful bacteria may grow, and it should be followed when the product has been stored as instructed. Don't rely on smell alone after that date.
A best-before date is mainly about quality. Biscuits may soften, spices may fade and rice may take longer to cook, but an intact, properly stored product may remain usable after the date.
Date labels work alongside fridge temperature, package condition and safe handling. Knowing the distinction prevents avoidable waste while keeping caution in the places where it matters.
The three dates explained
Use-by dates are safety limits for perishable food and should not be exceeded. Best-before dates describe quality, while display-until dates are mainly for shop stock control.
Read the storage and after-opening instructions as well as the date itself.
Use by - meat, fish, soft cheese, chilled ready meals. Bin after.
Best before - pasta, rice, biscuits, many tinned goods. Judge storage.
Display until - for retailers, not your fridge rules.
Dry pasta, rice and unopened tins may remain good after a best-before date if the packaging is intact and storage has been dry and pest-free. Quality may slowly decline.
Opened sauces and jars follow their own refrigerated storage instructions; the original best-before date is no longer the whole story.
What you should not negotiate
Do not use a sniff test to override a use-by date on chilled meat, fish, pate or ready-to-eat products. Harmful bacteria may not change smell or appearance.
People who are pregnant or immunocompromised may have additional food-safety advice from their clinical team.
Understanding date labels can prevent safe dry food being thrown away unnecessarily. Planning helps perishable food get eaten or frozen before its use-by date.
The aim is informed use, not proving that every old product can be rescued.
Monday reset for the cupboard
During the weekly reset, move foods with the nearest dates forward and choose meals that use them. Freeze suitable food before the use-by date if plans change.
A calm ten-minute check is more effective than a large clear-out after everything has expired.
Make the dates easier to act on
Move foods with the nearest use-by date to a visible part of the fridge and freeze suitable items before the date if plans change. Cupboard food can be rotated with older packs at the front, but still check seals, pests and package damage.
Meal planning helps because a date gains a destination: the chicken is for Tuesday, the yoghurt is breakfast and the bread will be frozen tonight. A date without a plan is much easier to overlook.