1. The total steaming time of whole hairy crabs or diced hairy crabs should not be less than 15 minutes from the beginning of boiling water, because it takes about 15 minutes to completely kill parasites or pathogenic microorganisms, which will not lead to crab meat aging.

2. Method of steaming hairy crabs: Before steaming hairy crabs, clean the crab shells and legs with a small brush, soak them in clear water for half a day, and drain the dirt in the abdomen. Before steaming, you can pour a proper amount of white wine on the live crabs for a little pickling, which tastes better.

3. Tie the claws and feet of hairy crabs with ropes before steaming to prevent the claws and feet from falling off and crab oil from flowing out during steaming. If you wrap the whole hairy crab with straw, it will keep fresh and fragrant.

4. Put a proper amount of water in the bottom of the pot and steam in a steamer 15-20 minutes. When cooking, it is not advisable to open the lid and steam it thoroughly at one time, otherwise it will affect the taste of crabs. During steaming, ginger can be cut into pieces and put into vinegar. After steaming, you can dip it in vinegar.