Do mussels and clams need to be soaked before cooking?

Shellfish are lovely little things. I am allergic to crustaceans but bivalve molluscs and I get together very well. I love oysters. Oh, how I love oysters! And, next to oysters, mussels and clams, and the occasional scallops when available and affordable. Oysters are simple to clean. Just scrub and rinse the shells, pry them [...]