1, the cooking time of crabs needs to be determined according to the size, and the specific standard should be that the crab shell turns red completely. Generally speaking, it takes 15-20 minutes for 4 pairs of crabs, 12- 15 minutes for 3 pairs of crabs, and 10- 12 minutes for 3 pairs of crabs.

2. When steaming crabs, you should not be greedy for a short time. If the steaming time is too short for delicious food, it is very likely that the bacterial parasites in crabs will not be steamed. If eaten rashly, it is likely to cause diarrhea and diarrhea.