1. Freeze directly.

2. You can put the razor clams in the freezer of the refrigerator before they die to ensure their freshness. When stored at room temperature, you need to soak them in clean water, change the water repeatedly, and soak them for half a day to a day. Do not soak them for too long, otherwise the razor clams will die. If it cannot be eaten in a short time, soak it in salt water and put it in the refrigerator.