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How long does frozen fish last?
Updated 2026-05-13 · USDA FoodKeeper & FDA guidelines
Freezer
6 months
6 months lean fish; 3 months oily fish
The short answer
Frozen Fish lasts as long as you store it correctly — which can mean anywhere from a few days on the counter to a year in the freezer. The numbers above represent best quality per USDA and FDA guidelines, not absolute safety limits.
Why these numbers vary
Bagged frozen fish fillets. Storage life depends on temperature consistency, humidity, packaging, and how fresh it was when you got it. Refrigerators that swing between 38°F and 45°F shave days off these numbers; vacuum-sealing or freezing extends them.
How to tell if frozen fish is bad
- Freezer burn
- Off smell when thawed
- Mushy when thawed
Storage tips
- Thaw in fridge overnight, never on counter
- Don't refreeze once thawed
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Frequently asked questions
How long does frozen fish last in the freezer?
Frozen Fish lasts 6 months in the freezer. 6 months lean fish; 3 months oily fish
How can you tell if frozen fish is bad?
Watch for: Freezer burn; Off smell when thawed; Mushy when thawed.