How to buy shellfish.
When buying shellfish; lobsters, crabs, clams, mussels and oysters must be alive. Keep a close check on lobsters and crabs, they should be quite lively; if they seem lethargic, move on. The muscles of live mollusks make it hard to pry their shells apart, that’s a good test. If you’re buying oysters or scallops that are already shucked and clean, smell them.Yum