Crabs have a high protein content. If it is stored at room temperature for too long, a large number of bacteria will breed inside the crab, which may deteriorate, even if it is boiled at high temperature, it may lead to food poisoning. If it is stored in the refrigerator for less than 6 hours, it can be eaten after heating at high temperature. If stored for more than 6 hours, it is not recommended to eat. Low temperature will inhibit the reproduction of bacteria, but it may deteriorate if stored for too long.