1, live crabs just dead can be frozen and preserved for a day to eat.

2, if the crab is just dead, will be put into the refrigerator freezer layer preservation, at this time the crab is not too late to breed a lot of bacteria, produce toxic substances to the human body, can be put into the freezer layer preservation of freshness for a day, but do not put too long, otherwise the flavor will be changed, and the loss of nutrients will also be more.

3, but if the crab is dead for too long, more than 1 hour at room temperature, refrigerated for more than 2 hours, you can not continue to eat, at this time, the dead crab is likely to have a large number of bacteria and other harmful substances, continue to consume will endanger the health of vomiting, abdominal pain, diarrhea and other uncomfortable symptoms, once accidentally eaten feel unwell, should immediately seek medical attention.