if the crab is killed, it can be put in the refrigerator for about 7 days. Crabs that have just died can be frozen in the refrigerator to inhibit the growth and reproduction of bacteria, prevent crabs from spoiling quickly, and thus prolong the eating time of crabs, which is longer than that in the refrigerator. Before the dead crabs are put into the refrigerator, they need to be cleaned, steamed in a pot, and then put into the freezer of the refrigerator to ensure that the meat is cooked.