If the hairy crab is dead, it can't be a spicy crab. Dead hairy crabs can't be eaten, because hairy crabs themselves live in dirty ponds and have a lot of germs in their bodies. Live crabs can excrete bacteria through metabolism, but dead crabs not only excrete bacteria, but also make bacteria multiply and high protein deteriorate rapidly. Moreover, hairy crabs contain a substance called histidine. When dying or dying, histidine in crabs will decompose to produce histamine. Histamine is a toxic substance. With the extension of death time, more and more histamine and toxins are accumulated in crabs. This toxin is not easy to destroy, and it still exists even when cooked. Therefore, hairy crabs cannot be eaten after death, nor can they be spicy crabs.