2, will wash the ribs, flying water is best cold water in the pot, the water boiled slightly boiled, and then rinsed with cold water, in order to remove the oil to blood.
3, radish cut into pieces, purple glutinous corn cut into segments about 2-3 cm.
4, the ribs cold water in a pot, add ginger, star anise, green onions, vinegar a little, large fire boil, small fire stew 30 minutes.
5, remove the foam, add purple glutinous corn, carrots continue to simmer for 30 minutes.
6, put a small amount of salt before leaving the pot, or do not put salt, because if you want to make up for calcium through the rib soup, too much salt intake will affect the absorption of calcium.