1. Cut the pork belly with scissors, wash it with running water, put it in a bowl, wash it twice with salt or white vinegar, and rinse it with water. Finally, add starch and rinse it with water, so that the pork belly has no odor. 2. Blanch the scrubbed pork belly in boiling water for 3 minutes, take it out and cut it into strips with a knife; 3. Wash the yam, Euryale ferox, Poria cocos and lotus seeds, and slice the ginger; 4. Put the pork belly and all the ingredients into the sand pot, add enough water, 5. After the fire is boiled, turn to low heat and simmer for 2 hours, and finally add salt to taste. I can't finish stewing soup with one pig's belly. I like to slice the pig's belly after soaking in water and put it in the refrigerator for freezing. When I want to cook the pig's belly soup next time, I will take out one or two bags without thawing and throw them directly into the soup pot. It is very convenient. Note: If the pork belly is stewed for a long time, the child can chew it badly. If children don't like to eat those herbs, then drink soup. The soup is very sweet and not greasy at all, much like Qingbu Liangtang. I've cooked it twice, and my children don't like to eat dregs. They just drink soup and give me all the dregs. Except for the delicious pork belly, I don't like the taste of Gordon Euryale and Poria.