If not opened, discard them. If you're using frozen clams, they should still all open but they're safe to eat if the shell was closed before they were frozen. For baked and stuffed clams ...

Rinse briefly, pat dry and place in freezing storage bag with shell and freeze (PHOTO A). 3. Pour oil in frying pan, place on high heat and cook garlic. When aroma rises, add clams in frozen state ...

Shijimi can be frozen and stored after the sand is ... bowl and leave for more than 30 minutes (PHOTO A). 2. Wash clams by rubbing shells together, remove dirt on surface and place in sieve.