Green crabs can be steamed directly. Generally steaming 10- 15 minutes or so. The time of steaming the blue crabs has a certain relationship with their size. If the blue crabs are relatively small, they are usually put into a steamer and steamed for about 10 minute after the water is boiled. If the blue crabs are relatively large, they will be heated relatively slowly, and generally need to be steamed for about 15 minutes, which can be judged by the state of the blue crabs. Pay attention to the steaming time should not be too long, otherwise it will lead to the loss of water and nutrients, the meat will become firewood and the taste will become worse.

First, put the washed blue crabs into the plate. Put a proper amount of water, ginger slices, onion knots and cooking wine into the steamer. Put the blue crabs in and turn on the fire. When the water in the pot boils, steam 10- 15 minutes, and turn off the fire. Don't open the lid in a hurry, cover it and simmer for 2-3 minutes. Prepare a small bowl, add vinegar, light soy sauce, cooking wine, white sugar, salt, sesame oil, Jiang Mo and a little water into the bowl and mix well to make juice. Serve with the blue crab and dip in it.

Steaming is a very simple cooking method. Usually, the ingredients are steamed directly after being processed, so that most of the cooked ingredients are original and can fully reflect the delicate flavor of the blue crabs, so the blue crabs can be steamed directly after being washed. Note that the blue crab is an animal that easily breeds bacteria. If it dies, the bacteria will decompose the protein of the blue crab to produce some cadaverine, which will aggravate the fishy smell of the blue crab. If it is steamed, the seasoning for removing fishy smell will be insufficient, and the taste will be affected.

You should know that the blue crab is rich in protein and trace elements, which has a good nourishing effect on the body. The blue crab is rich in protein, among which the content of female gonad is as high as 30.98%, which is the highest in fresh protein. Moreover, the protein amino acids of the blue crab are complete, and the score of essential amino acids is 84.23 ~ 93.58. protein can promote the growth and development of human body, maintain the nitrogen balance of the body and enhance the immune function.