How long does fatty fish last?
Short answer: Fatty fish (bluefish, catfish, mackerel, mullet, salmon, tuna, etc.) keeps 1–2 days in the fridge and 2–3 months in the freezer.
Storage chart
| Type | Fridge | Freezer |
|---|---|---|
| bluefish, catfish, mackerel, mullet, salmon, tuna, etc. | 1–2 days | 2–3 months |
Fridge at 40°F (4°C) or colder, freezer at 0°F (−18°C). Freezer times are for best quality; food kept frozen stays safe indefinitely.
Cooking it safely
- Cook to a safe minimum internal temperature of 145°F.
Keep it longer
Keep seafood in the coldest part of the fridge and use it quickly. Thaw frozen seafood in the fridge, not on the counter.
Common questions
How long does fatty fish last in the fridge?
1–2 days in the refrigerator at 40°F (4°C) or below, according to USDA FoodKeeper data.
Can you freeze fatty fish?
Yes. Frozen at 0°F (−18°C), fatty fish keeps best quality for 2–3 months. Frozen food stays safe indefinitely; the time is for taste and texture.
How can I tell if fatty fish has gone bad?
Throw it out if you see mold, a slimy texture, an off smell or an odd color. For anything perishable, go by the storage time rather than smell: bacteria that cause food poisoning don't usually change how food looks or smells.
More seafood
Source: USDA FoodKeeper data (USDA Food Safety and Inspection Service). Updated 2026-10-13. General information, not medical advice. When in doubt, throw it out.