The problem is how to keep fresh. It is edible to feed crabs in a suitable environment; If you take it out and put it in the refrigerator for resurrection, you can also eat it. But if you die for many days, in the environment of 2-8 degrees in the refrigerator, the bacteria and microorganisms in the crab multiply a lot, and the crab has deteriorated and produced toxins, so it is useless to eat it. If you put it alive in the freezer, you can eat it dead, but the taste and taste are not as good as fresh!