1, cut a small hole in the pig's belly, turn the inner surface out, and scrape off the residue on it with a knife, especially the yellow stuff, which is the dirtiest, and contains a lot of bacteria and viruses.

2. Prepare 4 spoonfuls of flour to neutralize the gastric juice in the pig's stomach and remove the fishy smell.

3. Spread the flour on the surface of the pork belly, and then spread the flour evenly by hand, especially at the folds of the pork belly.

4. Keep rubbing the pork belly covered with flour with your hands, but don't use too much force to avoid damaging the fiber of pork belly. Knead for about 5 minutes.

5. Rinse with warm water and scrape off dirty things that are difficult to clean with a knife.

6. Turn the pork belly over again, put the folded part in, pour in clean water, knead the cut holes together by hand, don't let the water flow out, gently shake it twice, and let the clean water flow out from the spout of the pork belly (a small tube in the front section), and repeat for 3 times.

7. Finally, put salt on the pork belly, remember to put it on both sides, let it stand for 5 minutes, and then rinse it with water.