1. Add salt to the pork belly, scrub vigorously, then rinse with water, repeat the front and back twice
2. Knead again with flour, rinse with water, repeat the front and back twice
3. Use scissors to cut the fat from the pork belly
4. Stir the pork belly with white vinegar and soy sauce, then rinse with water and set aside
5. In a pot under cold water, add a few slices of ginger, then add the pork belly and cook for 3-5 minutes
6. Scrap off the white film with a knife after fishing it out
7. Prepare ginger slices and other seasonings, and put other seasonings into the seasoning steel ball for easy removal in the future
8. Cut the belly slices into thumb-wide strips and put them in a slow cooker, then add ginger slices and seasoning balls
9. Add the right amount of boiling water, add enough water at one time
10. Add the lid, fasten both sides, turn to a high temperature key and simmer for an hour and a half
11. Add ginkgo and black fungus, then cover and turn to low temperature to simmer for half an hour
12. Finally add white pepper and salt to taste, add a few goji berries, put them in a bowl, and drink the soup
