Professor, director of Beijing Family Education Research Association, said that pop cans, which are popular among children, are made of aluminum alloy. In order to avoid contact between aluminum alloy and beverage, its inner layer is coated with organic coating for isolation. However, in the production process of some manufacturers, the protective coating is not completely coated on the tank wall, which will lead to direct contact between the beverage and aluminum alloy, and aluminum ions will be dissolved in the beverage.
A survey report on 52 kinds of drinks on the market shows that the aluminum content of canned drinks is 3-6 times higher than that of bottled drinks. If you drink cans often, it will inevitably lead to excessive aluminum intake. Excessive aluminum may lead to mental retardation and abnormal behavior of children, and even be detrimental to the development of children's bones and teeth. Therefore, the World Health Organization officially recognized aluminum as a food pollutant in 1988, and required it to be controlled.
There are two kinds of materials for making cans: aluminum and tinplate. With the improvement of environmental awareness. Moreover, considering the recycling of resources, aluminum is gradually replacing steel as packaging material. Europe, America and some areas with active consumption of cans continue to improve the recovery rate of aluminum cans and aluminum packaging materials.
Extended data:
Excessive intake of aluminum will cause the following hazards to human body: lead to Alzheimer's disease; It is easy to cause osteoporosis and fracture; Reduce the body's immune function; Lead to non-iron deficiency anemia.
In addition, low concentration of aluminum will also accumulate, which will cause different degrees of damage to nervous system, bone, liver, kidney, heart and immune system. Pop-top cans should not be drunk frequently and often, especially for children in the period of vigorous growth and development and the elderly with poor excretion function. Usually try to choose glass bottles or soft-packed drinks.
Baidu Encyclopedia-Pop-top cans (metal beverage containers)
People's Network-There is too much aluminum in the cans.