Techniques › Butchery and seafood
Cleaning mussels and clams
Beginner Butchery and seafood
Sorting, scrubbing and debearding live mussels and clams so only healthy ones go in the pot.
Written with AI help from the sources listed, and published by Cory. Sources: USDA safe minimum internal temperatures, USDA on the danger zone (40-140°F). Spot a mistake? Tell us and we'll fix it.
How do you do it?
- Store them in the fridge in a bowl under a damp towel, never in water or sealed plastic, and cook within a day or two.
- Just before cooking, scrub the shells under cold water. Soak clams 20 to 30 minutes in cold salted water to purge sand.
- Tap any open shell. If it doesn't close, discard it, along with any cracked or broken shells.
- Pull the fibrous beard on each mussel toward the hinge and off. After cooking, discard any that stay shut.
Why does it work?
Mussels and clams must be alive when cooked, because once they die their flesh breaks down fast and bacteria multiply. A live one snaps shut when disturbed. They breathe, so fresh water or a sealed bag kills them. Pulling the beard injures the mussel, so do it only right before cooking.
What are the common mistakes?
- Debearding hours ahead — the mussels die before you cook them.
- Storing them in water or a sealed bag — they suffocate.
- Keeping ones that stay open when tapped — they may be dead and unsafe.
Still stuck? Watch someone do it on YouTube.
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