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Knowledge base · Food safety

Why does shelf life change after opening?

The date on the label typically applies to an unopened product. After opening, the manufacturer's storage and usage instructions can be the guide, so it is worth reading them separately.

Source and review

Food Standards Australia New Zealand — Use-by and best-before dates

Open source ↗

Evidence level
source_collected_editorial_review_pending
Last editorial review
2026-07-14

Macrovia provides planning information and does not replace personal healthcare.

#after opening#storage#cold chain#date labelling
Macrovia supports planning and informed choices; it does not replace personal healthcare.