1. Soak in rice wine. Before cleaning the steamed crabs, you can pour them into a basin and pour in water and rice wine, which will help the crabs vomit out the sand in their bellies. You can also add a small amount of high-strength liquor to the water, which can clean and sterilize it. Soak it for about half an hour and then fish it out.

2. Wash with a brush. Soaked crabs need to be cleaned one by one with a brush. The abdomen and mouth of the crab contain more sand and bacteria. Using a brush can remove most impurities. Use a clean shoe brush or toothbrush to scrub the crabs one by one, especially the abdomen, which needs to be carefully scrubbed clean.