Can you still eat food after the best before date?

In most cases, yes. A best-before date passing does not mean the food became unsafe overnight, and for a large share of what carries that label, the date passing barely changes anything at all. Best before is a quality estimate, not a safety cutoff — the manufacturer's guess at how long the product stays at its peak, made with a built-in margin of caution. The real question is not what the printed date says. It is which of the two kinds of date you are actually looking at, and what has happened to the food since it was sealed.

First, check which date you are reading

This is the one step that changes everything else. Best before covers quality: crisps still crisp, coffee still aromatic, tinned tomatoes still bright. Use by covers safety, and appears only on the smaller set of foods where harmful bacteria can build up without the smell, taste or look changing enough for you to notice — fresh meat and poultry, fish, ready meals, pre-cut salads, some fresh dairy. If the word on the pack is "use by" and it has passed, this article is the wrong one to be reading; the date wins over your senses there. Everything below is about the far more common case: best before.

What "past the date" actually looks like, food by food

Dry pasta a month past its best-before date is dry pasta. Sealed rice, sugar, salt, honey and vinegar are close to indefinite — the printed date is more of a formality than a forecast, since almost nothing can grow in them. Sealed tinned food a year past its date is usually still fine, provided the tin itself shows no bulging, rust or leaking; those three signs matter far more than the number printed on the label, because they describe the actual container in front of you rather than an average case from a lab. Crackers, biscuits and cereal go soft rather than dangerous. Where best-before genuinely earns its keep is subtler: nuts and cooking oils turn rancid, ground spices fade to something closer to coloured dust than flavour, and flour can pick up an off, slightly musty taste over a long stretch. None of that is a safety event. It is a quality one, and you catch it with your nose and tongue, not by reading a calendar.

What can still go wrong on a best-before item

The date describes an unopened package stored the way the label says, and both of those conditions do real work. Once you break the seal, the best-before date stops applying entirely — you are on the opened-food clock from that point, and it is usually much shorter than what was printed, and nowhere on the packaging. A package that was left somewhere warm, got damp, or has a puncture you did not notice is not the sealed, ideal-conditions item the date was estimated for, regardless of what the date itself still says. And a genuinely bulging, rusted or leaking tin is a reason to throw it out at any date, before or after, because that damage points at gas-producing spoilage the printed date was never designed to catch.

How to judge it yourself once the date has passed

Your senses are the right tool here, and they are more specific to the actual item in front of you than a date printed weeks or months earlier ever could be.

• Smell first. Rancid oil, musty flour and stale spices all announce themselves reasonably clearly once you know to check.
• Look at texture and colour. Crisps gone soft, biscuits gone chewy, or grains that have clumped are quality losses you can see before you taste anything.
• Check the container, not just the contents. A dented tin is usually fine. A bulging, rusted or leaking one is not, regardless of the date.
• Taste a small amount last. If it smells and looks normal, a small taste is a reasonable final check for most pantry items — it will taste flat or off well before it is unpleasant enough to matter.

The overwhelming likelihood, for anything in the best-before category, is that the food is simply a little less good than it was on day one — not dangerous. Treating every passed date as a hard stop throws away food that is completely fine far more often than it protects you from anything.

The habit that actually helps

None of this requires memorising which foods are forgiving and which are not. It requires knowing, at a glance, roughly how long something has been sitting in the cupboard — because the honest answer to "is this still good" is almost always "smell it and see," and that only works if you remember to check things before they get pushed to the back and forgotten for a year. That is the part Munch is built around: a shared record of what is actually in the house and how long it has been there, so the jar that has quietly drifted past its best-before date is the one that surfaces, instead of staying invisible until a cupboard clear-out finds it.