2. Generally, crabs need 65,438+05 to 20 minutes, crabs with triple or quadruple weights need 65,438+05 minutes, and crabs with quadruple weights need 20 minutes. When cooking crabs, the time should be controlled, and the cooking time should not be less than 15 minutes, otherwise it will not play the role of sterilization and disinfection, and the time should not exceed 30 minutes, otherwise it will affect crabs.