Does the questioner want to ask "How to save swimming crabs after they die"? Refrigerate, freeze.

1. Refrigeration. If the swimming crab has just died, it can be stored in the refrigerator at a temperature of 2 to 4 degrees Celsius for no more than 48 hours. During this period, the swimming crab can still remain relatively fresh. .

2. Freeze. If the swimming crab dies for more than 48 hours, it can be steamed and stored in the refrigerator.