Fresh clams and mussels last 5–10 days in the fridge and no more than 2 hours at room temperature.
Shelf life at a glance
Bars show the longest recommended time for each place. Scale runs from 1 hour to 2 years.
- 1Use within days
- 2Keeps a week or two
- 3Keeps for months
- 4Keeps a long time
Based on the longest fridge or pantry time.
About 2–7 more days in the fridge.
About 1–6 more days in the fridge.
It's inside the safe window but near the end. Eat it today or freeze it now.
Past the recommended fridge time. Even if it looks and smells fine, throw it out.
Past the recommended fridge time. Even if it looks and smells fine, throw it out.
Counted from the day it was cooked, opened or bought. Assumes a fridge at 4 °C (40 °F) or colder.
Your fresh clams and mussels fridge countdown
- Made0
- Day1
- Day2
- Day3
- Day4
- Day5
- Day6
- Day7
- Day8
- Day9
- Day10
- Day11
- Day12
Based on the USDA FoodKeeper fridge window at 4°C (40°F) or colder.
Fresh clams and mussels storage times by method
| Method | Duration | Temperature | Container | Notes |
|---|---|---|---|---|
| Pantry / counter | 2 hours | 68–72°F | Store pack or sealed | 1 hour if above 90°F |
| Refrigerator | 5–10 days | ≤ 40°F / 4°C | Store pack or sealed | at or below 40°F (4°C) |
| Freezer | Not recommended | 0°F / -18°C | Freezer bag or wrap | texture or safety suffers |
Where to store fresh clams and mussels
Raw meat and seafood go on the bottom shelf, in a dish, so juices can never drip onto ready-to-eat food.
Fresh clams and mussels shelf life, answered
How long do fresh clams and mussels last in the fridge?
5–10 days at 4°C (40°F) or colder. Count from the day it was cooked, opened or bought.
How long do fresh clams and mussels last in the freezer?
Not recommended. Freezing fresh clams and mussels is not recommended; texture breaks down or the result is unsafe to rely on.
How long do fresh clams and mussels last at room temperature?
No more than 2 hours, or 1 hour above 32°C (90°F). Perishable food left out longer should be thrown away.
How long is fresh clams and mussels good for past the expiration date?
For perishable fresh clams and mussels, the storage clock matters more than the label: if it has been in the fridge longer than 5–10 days, discard it even before the printed date.
How can you tell if fresh clams and mussels are bad?
Strong fishy, sour or ammonia odour. Fresh seafood smells of the sea. Mushy flesh that does not spring back, or a milky slime. Dull, grey or yellowing flesh; dark edges.
How long can fresh clams and mussels sit out?
2 hours at room temperature, 1 hour on a hot day above 32°C (90°F). Overnight is always too long.
Signs fresh clams and mussels have gone bad
Smell
Strong fishy, sour or ammonia odour. Fresh seafood smells of the sea.
Texture
Mushy flesh that does not spring back, or a milky slime.
Colour
Dull, grey or yellowing flesh; dark edges.
Shells
Live shellfish with open shells that do not close when tapped.
Can you freeze fresh clams and mussels?
How to reheat fresh clams and mussels safely
Reheat to 74°C (165°F)
Check the thickest part with a food thermometer; it should be steaming hot all the way through.
Only once
Reheat just the portion you will eat. Each cool-and-reheat cycle gives bacteria another chance.
Cover and stir
In the microwave, cover the dish and stir halfway so there are no cold spots.
From the freezer
Thaw in the fridge first, or reheat straight from frozen and allow extra time.
Fresh clams and mussels left out overnight
Fresh clams and mussels left at room temperature for more than 2 hours (1 hour above 90°F / 32°C) should be thrown away. Bacteria multiply fastest between 40°F and 140°F, and reheating does not remove every toxin they make.
Bacteria multiply fastest between 4 °C and 60 °C (40–140 °F).
Best-by and use-by dates on fresh clams and mussels
Best-by and sell-by
FoodKeeper gives unopened fresh clams and mussels 5–10 days in the fridge, counted from the day you buy it. "Best-by" and "sell-by" describe quality and stock rotation, not safety; only infant formula carries a federally required use-by date.
Past the date
For perishable fresh clams and mussels, the storage clock matters more than the label: if it has been in the fridge longer than 5–10 days, discard it even before the printed date.
How to store fresh clams and mussels
- Keep on ice or in the coldest part of the fridge, at 40°F (4°C) or below.
- Store live shellfish in a bowl covered with a damp cloth, never in water or sealed plastic.
- Cook or freeze within the fridge window.
Fresh clams and mussels vs similar foods
- Fresh clams and mussels 5–10 days
- Cooked shellfish 3–4 days
- Crab legs 2–4 days
- Shrimp 1–3 days
- Cooked lobster tails 2–3 days
- Crayfish 1–3 days
- Clams 1–2 days
Same scale as the timeline above: 1 hour to 2 years.
Check any food in seconds: when your leftovers expire, and whether something left out is still safe.
Similar foods
All shellfish → Can you freeze… hub → Leftover calculator →Freezer time calculator →Left-out checker →