Common Jumbo Cockle (Sò Dương) for sale are shipped live. It is very fresh from the ocean. Their meat is flavorful and succulent.
You can check their condition by tapping any open shells - they should close immediately.
Soaking in salted cold water for about an hour. Discard any shells that don't open during cooking. Great served over pasta or rice dishes. It is also sometimes eaten pickled, or raw.