When purchasing mollusks, it is okay if the shells are slightly open as long as when tapped, they snap shut

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Quizplus · Accepted Answer

This indicates that the mollusks are alive and healthy. However, if the shells do not close when tapped, they may be dead and should not be consumed. Mollusks can open and close their shells naturally, so a slightly open shell is not necessarily a sign of spoilage. Tapping the shell and observing it snap shut is a good sign that the mollusk is alive and fresh.

When Purchasing Mollusks, It Is Okay If the Shells Are