Safety risks of food metal packaging
Metal packaging material as an A has a long history of basis material in 1200 AD began to 'with 17 after the middle of the century people' with metal packaging dress drying of food 1810 Peter Durand invented tinplate canned, since then, metal packaging has been widely used. With the development of the times, the food safety problem of metal packaging has gradually attracted people's attention. Food metal detectors also came into being. It has become an important link in food safety monitoring. The chemical industry of the food metal detector has not developed in the 18th century, so the earliest metal packaging was made of tinplate with high tin plating. After the second world war, countries realized the shortage of tin resources and began to continuously develop tinplate with low tin plating and chrome plating for metal packaging. Therefore, the earliest metal packaging food safety risks are heavy metals (Tin, chromium, iron, etc)The migration risk. With the rapid development of chemical industry, coating has become a new method to protect metal packaging from external corrosion, epoxy phenolic, epoxy Amino, porcelain-like coatings, aluminum paste coatings, water-based coatings and other coatings are widely used in metal packaging, while avoiding metal corrosion, it also brings the risk of chemical substances migrating into food. First, for epoxy coatings, the most important food safety risk is the well-known bisphenol A (BPA)And bisphenol A derivatives ( BADGE, BFDGE, NOGE) And so, with France's ban on bisphenol A, the world has begun to raise the control of bisphenol A to a harsh level. Second, for phenolic system-related coatings, the current food safety risk is formaldehyde. Although formaldehyde brings great harm to the respiratory system, it basically does no harm to people as food enters the digestive system, however, at present, the Chinese people still talk about 'Formaldehyde' color change, the current low formaldehyde coating is the development trend of the entire industry. Although we have mentioned the food safety risks of metal packaging above, compared with other packaging, metal packaging is the best choice in terms of product image, food safety, environmental protection, barrier property and shelf life, especially in recent years, China's food safety has been continuously improved, and food safety risks have been greatly reduced. More and more attention has been paid to food metal testing.