When processing sweet potatoes, we must ensure they are thoroughly steamed and cooked. This helps to break down the cell membranes of the starch, as it is a substance that is difficult to digest. Additionally, the gas-forming enzyme in sweet potatoes must be destroyed by high temperatures; otherwise, consuming them can lead to discomfort.
1. It is not advisable to eat sweet potatoes with black spots. The virus causing these black spots is not easily destroyed or killed by high heat, and can easily lead to poisoning, causing a series of symptoms such as fever, nausea, vomiting, and diarrhea, and in severe cases, it can even be fatal.
2. It is not advisable to eat sweet potatoes and persimmons at the same time. The main component of sweet potatoes is starch, which produces a large amount of fruit acid after consumption. If eaten with persimmons, this fruit acid can react with the tannins and pectin in the persimmon to cause coagulation, forming a stomach stone. If large quantities are consumed, there should be an interval of at least five hours. If you feel discomfort in your stomach, you must go to the hospital for a gastroscopy to check for gastric bleeding or a stomach ulcer.