Generally, when I deal with crayfish, I don't worry about cleaning. First of all, I will soak them in clear water for about half an hour to let them move by themselves, and then spit out the impurities in my mouth, so that some impurities around my body can also be soaked out. Then, after the soaking time, I will grab the lobster tail with a small brush and wash it hard on his abdomen. Generally speaking, I can use a second-hand electric toothbrush.
Crayfish's abdomen needs cleaning. In addition to the abdomen, when we deal with crayfish, we also need to clean its shrimp line. When handling the shrimp line, grab the lobster's tail and pull down a long black line, which is the shrimp line of crayfish, and throw these away.
After removing these things, soak the remaining crayfish in clear water for a period of time. You can rub them gently with your hands to remove residual impurities. Then after this series of treatments, the crayfish are actually cleaner, and then you can put them in the pot and treat them according to your favorite taste. Be sure to cook the crayfish.