Steam crabs for 15-20 minutes.

Generally speaking, the time for steaming crabs is 15-20 minutes. Smaller crabs can be fully cooked in 15 minutes, while larger crabs need about 20 minutes, and when the crab shells are all red in color, it means that the crabs are already cooked. After steaming, you can put the crabs inside and let them simmer for 3-5 minutes before taking them out. This will prevent the steam from getting too hot and burning your arms.

There are a few points to note when steaming crabs, the first binding the rope of the crab should not be removed, because the crab is to prevent the crab in the process of cooking the phenomenon of violent activities drop legs; the second do not arbitrarily lift the lid of the pot, some people like to lift the lid to look at the situation of the crab, but this will make the nutrients of the crab has been lost, and the taste will be reduced.

Introduction of crabs

Crab is the common name for the decapod short-tailed suborder. The body is broad and flat, a few narrow and long; the cephalothorax is covered with well-developed cephalothorax armor, the shape of the cephalothorax armor varies from species to species; the frontal part is shortened, the compound eye is on the outer side of the second antennae; the mouth part includes large jaws with hard teeth; the abdomen is degraded and flat and folded in the ventral surface of the cephalothorax armor, the males are slightly triangular or narrowly elongated, and the females are broad with a broad abdomen, which is more often oblong or rounded; the ventral surface of the cephalothorax armor on both sides of the 5 pairs of thoracic peduncles, and the first pair of pincer-like.

The crab lives in the subtidal zone at different depths, and a small portion grows and breeds exclusively in fresh water, mostly under rocks in mountain streams. The vast majority are omnivorous. Except for freshwater crabs, mating takes place mostly after the female molts, and fertilized eggs are discharged during spawning and adhere to the female's abdominal limbs until hatching.

Refer to Baidu Encyclopedia-Crab for the above