How Long Does Food Last After Opening in the UK?

Opening a package can change its storage requirements and shorter instructions may apply, such as refrigerating and eating it within a stated number of days.

United Kingdom · Official food safety sources

Look for the exact packaging instruction

Check for words such as “refrigerate after opening” or “eat within two days of opening”. The packaging, not a universal calculator, defines that condition.

Do not override a use-by date

Opening a package does not extend its use-by date. Always use the earlier applicable instruction.

Why a generic date would be misleading

Bread, dairy, cooked meat, sauces and seafood cannot all be assigned one credible UK after-opening number.

← More UK storage guides

Official UK sources: Food Standards Scotland — Food storage ↗ · FSA — Best-before and use-by dates ↗