1. Prepare carrots, corn, iron stick yam and mushrooms.
2. First put the spareribs in boiling water, blanch the bleeding water and excess oil, take them out and put them in the pressure cooker, then put two-thirds of the extra cold water in the spareribs, and cover them with a virtual cover to open the fire.
3. Cut carrots, corn and iron yam into appropriate sections. If carrots are thick, they can be cut vertically from the middle and then cut horizontally. After the iron yam is washed with water, take the yam in one hand and peel it with a peeler in the other. You can cut it while cutting, so as not to make your fingers itch. Fresh mushrooms are cut in half and then cut twice to form a sharp triangle.
3. After the soup in the pot is rolled, put all the cut materials, and then put a small amount of salt, just to make the ribs and mushrooms taste a little. This soup should be light and not salty.
4. Finally, cover the lid, put the pressure valve on the medium heat, and cook for ten minutes after SAIC. Add a little salt when you feel weak at last, not too much. It will be very salty at the second meal and it will not taste good. This soup tastes light and sweet.
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Nutritional value: Bone soup can play an anti-aging role. This is because the bone marrow is the most important thing in human bones, and red blood cells and white blood cells in blood are formed in bone marrow. With the increase of age and the aging of the body, the function of bone marrow to produce red blood cells and white blood cells gradually declines, which directly affects the ability of human metabolism. The collagen contained in bone soup can just enhance the human body's ability to make blood cells. Therefore, for middle-aged and elderly people, drinking some bone soup to recuperate can slow down bone aging; Similarly, bone soup can also be beneficial to the bone growth of teenagers. Nutritional value of pig bones: cold and cool, can strengthen the waist and knees, benefit strength, supplement weakness and strengthen bones and muscles. If the spleen and stomach are deficient in cold and people with poor digestion eat it, it is easy to cause gastrointestinal fullness or diarrhea, so ginger or pepper should be added to the bone soup. Calcined charcoal powder of pig bone is mild in nature and has the function of stopping diarrhea, strengthening stomach and strengthening bone. Contains some fat and a small amount of amino acids.
Note: Many people think that it is best to drink bone soup to supplement calcium. In fact, this statement is incorrect. Not all calcium in food can be absorbed by human body, only calcium in ionic state can be easily absorbed by human body. And eating too much fat will also affect the absorption of calcium. Fat will form insoluble soap calcium with calcium. Because the calcium contained in bone soup is not ionic calcium, but also contains a lot of fat. Calcium in bone soup is not easily absorbed by human body. The best food to supplement calcium is milk, because the calcium in milk is ionic, and milk also contains lactose, VD3 and other substances that are beneficial to calcium absorption.