1, the crab will be cooked in 15-20 minutes, but due to different kinds of crabs, the amount and volume will be different.

2. Therefore, there is no systematic regulation on the cooking time of crabs. Generally speaking, 3-4 taels of crabs should be cooked for about 15 minutes, and crabs larger than 4 taels should be cooked for more than 20 minutes before they are cooked, and it is important to pay attention to the fact that the cooking time of crabs should not be less than 15 minutes, or it is very difficult to achieve the effect of sterilizing the crabs.