Clean the ribs, cold water in the pot, the pot boiled skimmed off the froth, then fish out and rinse. Put the ribs into the pressure cooker, add peppercorns, star anise, scallions, ginger and a little salt, and then injected into the right amount of water, and then cover the pot to start cooking. About thirty minutes later, the delicious stewed pork ribs are ready, sprinkle with chopped parsley before leaving the pot, and then add a little monosodium glutamate for flavor.