To the large mustard stalks with purple Chinese yam in pot salted pork bone has broad chest phlegm, intestines and stomach, down the gas eliminating the effects of dryness, especially to get rid of the winter of the dry fire, for men and women, young and old people alike. Materials: Longtang large mustard 1 (large trees up to 3 catties, can also be replaced by general mustard), 500 grams of fresh ZiHuaiShan (can be replaced by fresh HuaiShan), salted pork bone (can be replaced by salted burnt bone sold in the market) 500 grams, 3 slices of ginger. Cooking: Wash each thing, cut into pieces or blocks; salt the pork bone mixing marinade for more than 1 hour. Together with ginger under the tile pot, add 3000 ml of water (12 bowls), martial arts fire after boiling to the fire pot for about 1 hour, after the taste test under the salt or not under the salt, for 4 ~ 5 people.