Nutritional value of pork big bone soup:\x0d\Pork bone contains protein, fat, vitamins, but also contains a large amount of calcium phosphate, collagen, bone mucin and so on. Pork bone is warm, sweet, salty, into the spleen, stomach meridian, has the effect of replenishing the spleen and qi, moistening the stomach and intestines, generating fluids, plumping up the organism, zeing the skin, replenishing the middle and benefiting the qi, nourishing the blood and strengthening the bones. Children often drink bone broth, can timely replenish the body's essential collagen and other substances, enhance the bone marrow hematopoietic function, contribute to the growth and development of bones, adults drink can delay aging. \x0d\\ practice is as follows:\x0d\ I. Ingredients\x0d\ 1000g of pork big bone, 3 slices of ginger, 2 spices, 2 pieces of green onion, 5g of salt, 1 tablespoon of cooking wine, 3g of chicken essence, 1 tablespoon of vinegar. \x0d\2, blanch in water for 3 minutes, fish out and rinse. \x0d\3, pressure cooker put the right amount of water, put down the bones. \x0d\4, add ginger, green onion, sesame leaves, vinegar, cooking wine, high heat to boil, low heat for 40 minutes. \x0d\5, skim off the floating oil, add salt, chicken essence. \x0d\6, add scallions can be.