So you can't eat fried food and barbecue here in Nissan. These things are made of recycled oil, and I don't know how many times they have been used. And no matter what oil, no matter how good it is, after you reuse it many times, its toxic and harmful substances will be high.
Like those street vendors, they won't change the oil. Think about it, they basically have to pour half a barrel of oil at a time, and a barrel of oil 100 yuan. If you change the fresh oil every day, the cost is very high, so they will hardly change the oil.
Especially some fried foods, you can observe them carefully. They never change oil. They waited until there was a little less oil before pouring new oil into the pot. The original oil has not been reused for hundreds of times, so it is very harmful to the body. If we eat these things often, it is difficult for our bodies to excrete toxins.
When we are at home, we shouldn't recycle too much oil. We can reuse the new oil twice. If you use it for the third time, toxic and harmful substances will begin to come out, especially for some elderly people at home, who use oil sparingly. Sometimes, the extra oil in the dish will be used for cooking.
Therefore, if the old people at home have the habit of using oil again, they must get rid of it, otherwise their metabolism will not work when they are old. If these oils are reused, the harm to their health will be greater than that of us adults.