After the sweet potato skin is baked, it can protect and warm the stomach, promote digestion and strengthen the spleen, and treat stomach diseases. Because of health and safety problems, harmful substances can easily accumulate in sweet potato skin, so eating baked sweet potato with skin is carcinogenic, so eating with skin is not recommended. But at home, you can wash the raw sweet potatoes and cook them in a pot. Cooked sweet potatoes can be eaten with skin. Sweet potato skin contains more alkali, and eating too much will cause gastrointestinal discomfort, so it should be eaten in moderation.
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When selecting sweet potatoes, avoid choosing sweet potatoes with brown or dark brown spots on the skin. Such sweet potatoes infected with black spot bacteria will produce substances such as "sweet potato ketone" and "sweet potato ketone alcohol", which will damage the liver and cause poisoning. Mild poisoning can lead to nausea, vomiting and diarrhea, while severe poisoning can lead to convulsions, vomiting blood and even death.
When selecting sweet potatoes, it is suggested to choose straight, symmetrical, pinkish, spot-free and harmless sweet potatoes. Before cooking, you can dip the epidermis in flour or salt and brush it lightly with a brush to remove the marked dirt.
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