It is best not to eat, if you want to eat it is best to put it in the refrigerator, the next day you can still eat, but pregnant women are best not to eat, because the high protein of crab has been changed, pregnant women and poor health people consume it will occur diarrhea. If you don't finish the cooked crab, the best way to keep it is to cook it and let it cool and wrap it in plastic wrap and put it in the freezer. If you want to eat it again, don't eat it later than noon the next day, and steam it over high heat as you would raw crab, so that it's as safe as possible to eat without wasting it.

Crab preservation time is too long, the meat becomes not fresh, and the dead crab body contains more histidine, if the crab body is contaminated by bacteria, the histidine in the crab is decarboxylase enzyme, decarboxylated into histamine and histamine-like toxic substances, eat this crab, is also equal to eat the toxin, when the human body histamine reaches a certain amount, it will cause poisoning.