How long do fresh clams, mussels, oysters last?
Short answer: Fresh clams, mussels, oysters keep 5–10 days in the fridge and don't freeze well.
Storage chart
| Fridge | Freezer |
|---|---|
| 5–10 days | Not recommended |
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 until shells open during cooking.
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 do fresh clams, mussels, oysters last in the fridge?
5–10 days in the refrigerator at 40°F (4°C) or below, according to USDA FoodKeeper data.
Can you freeze fresh clams, mussels, oysters?
Freezing isn't recommended for fresh clams, mussels, oysters; the texture and quality suffer.
How can I tell if fresh clams, mussels, oysters have gone bad?
Throw them 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.