1, barrel preservation, if it is fresh crayfish bought, it is recommended to put it in a barrel for preservation. Adding clear water into the bucket is just enough for crayfish to eat, and then adding a little salt and a few drops of cooking oil can not only ensure the activity of crayfish, but also promote the discharge of substances in crayfish intestines. Barreled crayfish can be kept for 2-3 days.

2, cold storage, cooked crayfish can be stored in the refrigerator freezer, cooked crayfish will be poured into a bowl, after the temperature is lowered, it will be placed directly in the refrigerator freezer. In the process of cooling, try not to turn it over, and it can be preserved after natural cooling.