It can't be eaten. After the crab is dead, the body will produce a chemical called histamine, this substance is toxic. And because crabs like to eat dead fish in the water, dead shrimp and other corrupted corpses, which will certainly produce a certain amount of bacteria in the body of the crab, after the death of the crab is not able to discharge the bacteria in the body, so that the bacteria in the body of the crab will reproduce in large quantities, decomposition of the crab meat, which produces toxic substances such as histamine.

So even if the refrigerator frozen dead crabs are not allowed to eat, this must be remembered. In the crab must be picked fresh, nothing vitality of the crab do not buy, buy back will also die soon, there is also in the cooking of the crab, must be cooked through, so that you can kill the bacteria in the body of the hairy crab.