2. Heating aluminum foil paper will produce toxins. Because aluminum foil paper contains a certain amount of aluminum and lead, a chemical reaction may occur when heated, so that metal substances such as aluminum and lead may overflow. Although a small amount, but the metabolism of metal substances in the body is very slow, if long-term consumption, may cause poisoning; However, if the food is grilled with tin foil or aluminum foil, the acid sauce, aluminum and tin foil on the food will be heated at the same time, and the chemical reaction will be accelerated.
3. Aluminum foil paper for food packaging has strict requirements on the materials used. A lot of tin foil sold in the market now is aluminum foil. Both sides of the paper are plastic or special paint, and the middle layer is aluminum. It's ok if it's just packaged food, but if it's baked directly in food, it's directly harmful to human body. Because aluminum contains a lot of lead, once the stability of aluminum foil paper is not up to standard or it is in direct contact with open flame, it is likely to dissolve lead. After the human body ingests lead, it will react with elements such as iron and zinc, thus affecting the synthesis of heme, which will be aggravated with the increase of lead intake. If people often eat this kind of contaminated food, it will affect their health.