1. Fresh pork tripe can be washed with flour. Pork belly is wrapped with flour first, then carefully rubbed, washed and then wrapped with salt, so that it can be washed more cleanly.

2. When washing pork belly, you can add some vinegar to the water. Vinegar itself has a certain cleaning effect and can also remove the special smell in pork belly. When washing pork belly, put it in cold water and scrape off the calluses at the tip of the belly with a knife. However, it should be noted that alkali should not be used when washing the belly, because alkali is very corrosive, so it is easy to destroy the pork belly.

3. The selection of pork belly is also skillful. Generally speaking, it depends on whether the color of pork belly is normal. If there are blood clots or necrotic tissue on the stomach wall and bottom, don't buy such a pork belly.

4. Fresh pork belly is elastic and shiny, and its color is white and slightly yellow. If there is necrotic tissue, don't buy such a pork belly. Of course, the necrotic pork belly is black, which can be seen at a glance.

5. The stale pork belly is green in white, with no elasticity and luster, soft meat and hard bumps inside. If you encounter this kind of pork belly, you can buy it.

6. In addition, you must go to a regular place to buy pork bellies to prevent buying dead pork bellies.