1. First of all, after scallops are bought, they must be soaked in water for half a day. Don't wash and eat them immediately. The purpose of soaking is to make scallops spit out fine sand and dirty things inside.

2. Brush the shell of scallop with a toothbrush to prevent the shell from polluting scallop meat.

3. Then open the scallop with a knife.

4. After deducting other internal organs and sediments except the colored meat, the scallop is continuously squeezed outward along the red meat edge of the scallop, and the dirty things inside the scallop are squeezed out for several times until there is no black substance.

5. Rinse it repeatedly with clean water for several times, and it will do.