2, crayfish rely on eating plankton to survive, very susceptible to water pollution, easy to be parasitic, so you need to use high-temperature water for a longer period of time in order to kill the body of the parasites, in the cooking before you need to use a brush to carefully brush the surface of the crayfish body surface attached to mud and other dirty things. Crayfish eating method is also a lot, in addition to making spicy crawfish, you can also do garlic crawfish, marinated crawfish and so on.