Can You Eat Peanut Butter After the Best-Before Date?
Written by Jordan Morley · Reviewed against FSA date labelling guidance · Last updated 28 October 2026
Yes. Peanut butter has a best-before date, which is about quality rather than safety, so it is usually fine to eat after the date. Check that it looks and smells normal.
Why it's usually fine past the date
A best-before date is the maker's estimate of how long peanut butter stays at its best. After it, the oil separates (normal) and the flavour can turn flat or stale; it doesn't suddenly become unsafe. The FSA says food is generally safe to eat after its best-before date, and using your own judgement also cuts food waste. Throw it away if you see: a rancid, paint-like smell or any mould.
You can also check the calorie content of peanut butter alongside its safety information.
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Peanut Butter: the other answers on this site
| Question | Short answer (links to the full page) |
|---|---|
| In pregnancy | Safe |
Common questions
Why has my peanut butter separated?
That's natural oil rising. Stir it back in. It is not spoilage, and storing the jar upside down or in the fridge slows separation. A rancid smell is the real warning sign.
How can I tell if peanut butter has gone off?
Look for a rancid, paint-like smell or any mould. If none of those apply and it looks, smells and tastes normal, it is fine.
What actually changes after the best-before date?
The oil separates (normal) and the flavour can turn flat or stale. That's a drop in quality, not a safety problem (FSA).
What is the difference between use-by and best-before?
Use-by is about safety: do not eat after it. Best-before is about quality: the food is often fine after it, just past its best. Check which one is on your label.
Related answers
Primary source: FSA date labelling guidance.
General information only, not medical advice: see the medical disclaimer. Feeling unwell after eating something? Contact NHS 111 or your GP.