Food date labels matter just as much during disruption as on an ordinary day. A use-by date relates to safety; a best-before date relates to quality. Neither label removes the need to follow storage instructions or account for damaged packaging and an interrupted cold chain.

Treat use-by dates seriously
Do not eat food after its use-by date because it appears or smells normal. Harmful bacteria may not be detectable that way. If a product requires refrigeration, the date assumes the storage instructions have been followed. An electricity interruption can affect that condition before the printed date is reached.
- Keep the original label with stored food.
- Check the instructions that apply after opening.
Understand best-before limits
A best-before date is different from a safety deadline, but it is not a promise that any neglected package remains suitable forever. Check the product, its packaging and relevant advice. Avoid buying large quantities close to a quality date if your household will not realistically use them.
Plan to avoid the dilemma
Rotate suitable reserve food through ordinary meals and buy manageable amounts. Mark the next items to use rather than hiding them under newer purchases. During a power cut, use current Food Standards Agency guidance for chilled and frozen food instead of applying a simple date rule. Never taste food to determine whether it is safe after an uncertain storage history. If you cannot establish that a higher-risk food has been kept safely, seek authoritative advice and choose a suitable shelf-stable alternative.
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