1. After the crab dies, its freshness will decrease rapidly, and the bacteria in the body will start to multiply. Refrigeration can only temporarily inhibit the reproduction speed of bacteria, but it can't kill them.

2. The longer you die, the more bacteria you have, and the faster you breed, which will make crabs deteriorate quickly.

3, people eat dead crabs, it is easy to have adverse effects on the body, so it is not recommended to eat dead crabs.