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 — usually entailing a mix of ...

Some shellfish such as squid, octopus and prawns can be frozen successfully; others such as mussels, oysters and clams need to be live when cooked. Store in the fridge until needed. Raw or ...

Shijimi can be frozen and stored after the sand is removed. When using frozen clams, just plunk them directly into boiling water. "Hatcho" miso uses soybean "koji" fungus matured for a long period.