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Is tin used for barbecue poisonous?
Tin used for barbecue is poisonous. It is recommended not to eat barbecue food with tin.

Related: Li Jian, a food expert, said that tin foil and aluminum foil are mostly used to wrap barbecue ingredients to prevent meat from burning. The main component of tin foil is lead-tin alloy. The lead content of tin foil is as high as 50%, and toxic lead white and lead hydroxide will be generated on the surface. Yellow Huang Dan (lead monoxide) produced during incineration is also a toxic compound. These toxic particles float in the air with the hot air, are inhaled into the respiratory tract by the surrounding people, and are deposited in the lungs, which is prone to chronic lead poisoning and will cause symptoms such as depression, anemia, kidney disease, infertility and abortion.

The national standard "refined aluminum foil" stipulates that the toxic elements in refined aluminum foil for food packaging should meet the following requirements: lead should not be greater than 0.0 1%, cadmium should not be greater than 0.0 1%, and arsenic should not be greater than 0.0 1%. Therefore, the best choice for barbecue is aluminum foil paper, provided that the lead content meets the national standards.

In daily life, aluminum foil and tin foil are easy to distinguish. Tin foil is much brighter than aluminum foil, but it has poor ductility and breaks when pulled. Aluminum foil material is stiff and easy to cut, and it is often packaged in rolls.