1, boil water in a pot, add ribs, cook for two or three minutes, pour out the blood, and wash the ribs.

2. Put the ribs in the pressure cooker and pour in the water.

3. Bring the fire to a boil, skim the foam and oil, pour in cooking wine, add ginger slices, scallions, star anise and pepper, cover the pot, and turn the fire down for 20 minutes after the fire reaches SAIC.