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

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 to be cooked, and it should be noted that the cooking time of crabs should not be less than 15 minutes, or it is very difficult to achieve the effect of sterilizing.