Room temperature environment temperature is high, crab preservation 2 to 4 hours will breed a lot of bacteria, so the death of 2 to 4 hours of crab is not recommended to continue to eat.

2, refrigerated 24 hours

The temperature of the refrigerated room is relatively low, the bacterial growth rate is slower, and the crabs that have died over 24 hours are also edible.

3, frozen for more than 7 days

The temperature of the freezer is very low, it will inhibit the growth of bacteria, so it is not a problem to freeze the dead crabs for 7 days, the main thing is to shake out all the moisture.