1.
Brush the crabs one by one with a toothbrush, put them in water for one hour, and change the water three times.
2.
Put the above auxiliary materials one by one in the fresh-keeping box, and put the crabs in cold boiled water. After the crabs are finished, add cold water to the soup if the soup is not enough. Put the lid on and put it in the refrigerator, and enjoy it in a week!
