How to Clean Mussels
If you shop for mussels in the supermarket, chances are they’re farm-raised. This is good news for you because farm-raised mussels are usually already debearded and only need a quick rinse. Otherwise, aside from a bit of elbow grease, cleaning and prepping mussels for cooking isn’t as complicated as you think.
Step 1: Rinse over cold water
Place your mussels in a colander and run them over cold water. If you bought wild mussels, you’d want to scrub them individually to ensure all sand and debris are washed off.
Step 2: Debeard
The beard of a mussel is a group of threads that allow the shellfish to anchor onto surfaces. Since the beard isn’t edible, you’ll need to remove it before cooking.