The time of steaming yam is related to many factors, such as the size of yam, cooking pot and firepower. Ordinary cooking pot takes 20 minutes to steam yam into small pieces. However, when cooking in a pressure cooker, the temperature in the cooker exceeds 100℃ due to the strong pressure, and it will be cooked in a short time, generally only taking 10 minutes.
Yam has the functions of nourishing cells, strengthening endocrine, tonifying and strengthening the body's hematopoietic function, inducing interferon, improving the body's immune function, improving disease resistance, etc., and plays an important role in delaying the aging process. Yam is rich in trace elements beneficial to human body, and has the functions of nourishing blood, nourishing brain, tonifying kidney and resisting aging.
Yam is sweet, nourishing but not greasy, fragrant but not dry, and has a good effect on diarrhea due to spleen deficiency. Yam is a soothing, nourishing and strengthening medicine, which strengthens the spleen, benefits the stomach and broadens the intestine, and has a good effect on chronic diarrhea with gastrointestinal dysfunction.
Yam can nourish yin and promote diuresis, lubricate and astringent. It can be used to treat fecal diarrhea, because it is beneficial to urinate and convenient, so that water can be discharged from the bladder and the water in the intestine is reduced, so the symptoms of diarrhea are reduced. Yam can stop diarrhea by invigorating the spleen, benefiting the stomach and widening the intestine, because yam can calm the spleen and strengthen the function of invigorating qi and transporting spleen, so it can stop defecation.
Matters needing attention in eating yam
1. Yam contains a lot of starch, and steamed yam doesn't have a lot of water, so it needs a lot of water to participate in digestion. Therefore, steamed yam can't be eaten more, so as not to cause constipation because the feces are too dry.
2. Yam contains high starch and belongs to high-energy food. Therefore, people who lose weight should not eat more to avoid increasing obesity.
3. Yam belongs to allergic food, therefore, people with allergic constitution are not suitable for eating to avoid allergic phenomena.