How Long Do Mussels Last?
Live mussels keep 5–10 days from harvest in the fridge under a damp cloth, but are best cooked within 2–3 days of buying. Cooked mussels last 3–4 days; frozen shucked meat, 3–4 months.
Mussels — live
shelf life- Cooked: 3–4 days in the fridge
- Shucked: 3–10 days in the fridge
Fridge at 40°F (4°C) or below · freezer at 0°F (−18°C). Freezer times are for best quality; frozen food stays safe longer.
Mussels are thin-shelled bivalves, almost always farmed on ropes and sold live in mesh bags, or cooked and vacuum-packed or frozen. They are safe only while alive, and their fragile shells and habit of gaping make them less hardy out of water than clams or oysters, so they are best cooked soon after purchase.
How to store mussels
- Leave mussels in their mesh bag, or move them to a colander set over a bowl, cover with a damp towel and keep them at the back of the fridge. Pour off any liquid that collects each day.
- Do not seal live mussels in a plastic bag or airtight tub, and do not cover them with tap water; both kill them.
- Pull off the beards and scrub the shells only right before cooking. Debearding injures the mussel and shortens its life.
- Freeze cooked mussel meat in its strained cooking broth in a rigid container. This keeps a better texture than freezing raw mussels in the shell.
- Check the harvest or packed-on date printed on the bag tag at the store and choose the most recent one.
How to tell if mussels have gone bad
- Mussels that stay wide open after a firm tap or a squeeze of the shell for several seconds are dead; discard them.
- Broken or crushed shells, common with thin mussel shells at the bottom of the bag.
- A strong fishy, sulfur or rotten odor instead of a fresh, salty smell.
- Unusually heavy closed mussels may be filled with mud, and ones that feel very light and rattle are empty or dried out.
- Cooked mussel meat that is shrunken, dry, slimy or sour-smelling.
Bacteria that cause food poisoning usually do not change the look, smell or taste of food. Go by the time limits first, and the signs above second.
Mussels shelf life chart
| State | Fridge | Freezer | Pantry |
|---|---|---|---|
| Live | 5–10 days | Not recommended | Not safe |
| Counted from the harvest date on the bag tag. For best quality cook within 2–3 days of purchase. To freeze, cook them first. | |||
| Cooked | 3–4 days | 3 months | Not safe |
| Shucked | 3–10 days | 3–4 months | Not safe |
| Follow the use-by date on the container if it is sooner. | |||
Not safe = perishable: no more than 2 hours at room temperature (1 hour above 90°F / 32°C). Not recommended = possible, but quality suffers or it serves no purpose.
Frequently asked questions
How long do fresh mussels last in the fridge?
Live mussels keep 5–10 days from harvest under federal storage guidance, but at home plan to cook them within 2–3 days of buying. They are more fragile than clams, and a growing share die each day in the fridge. Store them cold, damp and uncovered enough to breathe.
My mussels are open. Are they dead?
Not necessarily. Live mussels often relax and gape in the fridge. Tap each open one on the counter or squeeze it shut; a live mussel slowly closes and stays closed. Any that remain open, along with any that have broken shells, are dead and should be thrown away before cooking.
Should I throw out mussels that do not open when cooked?
Yes, that is the cautious rule. Most mussels open within 5–7 minutes of steaming. One that stays tightly shut after the rest have opened may have been dead beforehand or may be full of mud, so it is safer to discard it than to pry it open.
How long do cooked mussels last?
Cooked mussels last 3–4 days in the fridge. Take the meat out of the shells, cover it with some of the cooking broth in a sealed container and refrigerate it within 2 hours. Reheat gently, just until hot, since mussels turn rubbery when cooked a second time.
Can you freeze fresh mussels?
Yes, as cooked or shucked meat, for 3–4 months at best quality. Steam them first, remove the meat and freeze it in the broth. Freezing live mussels in the shell is not recommended. Frozen mussels must always be cooked, never eaten raw.
Related foods
| Food | Fridge | Freezer | Pantry |
|---|---|---|---|
| Clams Live |
5–10 days | Not recommended | Not safe |
| Oysters Live |
5–10 days | Not recommended | Not safe |
| Scallops Raw |
1–2 days | 3–6 months | Not safe |
| Squid (Calamari) Raw |
1–2 days | 3–6 months | Not safe |
| Shrimp Raw |
1–2 days | 3–6 months | Not safe |
| Lobster Live |
1 day | Not recommended | Not safe |
More shellfish: Crab.
Reviewed 2026-09-30. Times follow published USDA FoodKeeper / FSIS, FDA and CDC storage guidance; where sources differ we use the shorter time. How we compile this data.