1. Prepare carrots, corn, iron yam and mushrooms.
2. First put the ribs in boiling water, blanch the water and excess oil, take them out and put them in a pressure cooker, then put two-thirds of the excess cold water into the ribs, cover them with a virtual cover, and then fire.
3. Cut carrots, corn and iron yam into appropriate sections. If the carrot is thick, you can cut it vertically in the middle and then cut it horizontally. After washing the iron yam with water, take the yam in one hand and peel it with a peeler in the other. You can cut 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 boiled, put all the cut materials and a little salt, just to make the ribs and mushrooms taste a little. This soup should be light and not salty.
4. Finally, cover the pot, put the pressure valve on medium heat, SAIC cook for 10 minutes. Finally, when you feel weak, add some salt, not too much. The second meal will be salty and not delicious. This soup tastes light and sweet.
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Nutritional value: Bone soup can play an anti-aging role. This is because bone marrow is the most important thing in human bones, and both red blood cells and white blood cells in blood are formed in bone marrow. With the growth 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 body's ability to make blood cells. Therefore, for middle-aged and elderly people, drinking bone soup 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 flatulence 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 functions of stopping diarrhea, strengthening stomach and strengthening bones. Contains some fat and a small amount of amino acids.
Note: Many people think 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 ionized calcium, it also contains a lot of fat. Calcium in bone soup is not easily absorbed by human body. The best food for supplementing 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.