This is the most effective way to remove sand and debris from clams before cooking. The clams must be alive for this method to work. While some clams are sold precleaned, it’s generally recommended to clean them again before use.

Many common soaking methods involve fully submerging clams in saltwater, stacking them in bowls, or adding ingredients like cornmeal—none of which reliably improve purging. These approaches often cause clams to re-ingest expelled sand or sit in cloudy water, leading to inconsistent results.

This method avoids all that. By using a shallow saltwater tray, laying clams in a single layer, and reducing light exposure, the clams purge naturally and thoroughly without stress. It’s a cleaner, more precise approach that that promotes natural purging and lets clams clean themselves thoroughly.

clams extend and spur out sand and debris

Clams add rich seafood flavor and umami to any dish. I like using them in paella to deepen the flavor, and they’re excellent in miso soup too.

How to Clean Clams (Remove Sand Before Cooking)

close up of clams extend and spur out sand and debris

This method offers a cleaner, more reliable way to remove sand from live clams before cooking. Unlike casual soaking techniques, it uses a shallow saltwater tray, single-layer placement, and light control to help clams purge naturally and thoroughly.

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Sakura Yubi

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Cook Time 1

Total Time 1

Cuisine Japanese

Equipment

▢
1 container (For mixing salt and water.)
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1 Tray (Large enough to lay the clams in a single layer.)

Ingredients

500 g (2.1 cups) water
1 tbs (1 tbs) salt (Use natural salts like rock salt or sea salt. The goal here is to recreate natural sea water. I'm using Himalayan salt in the pictures.)

directions

Prepare the Saltwater

Mix water and salt until fully dissolved.

Set Up the Tray

Lay clams in a single layer on a tray.
Pour the saltwater into the tray until the clams are covered halfway.

Cover if Needed

If the room is bright, turn off the lights or cover the tray with tin foil or similar to simulate a darker environment.

Let Them Purge

Wait at least 1 hour. The clams will love the environment and immediately begin to extend and purge sand and debris. 🙂

Final Rinse

Wash the clams thoroughly before cooking.

Keyword clams