With the advent of summer, all kinds of beverages into the sales season, many consumers are asking: which beverage bottle is relatively safer? Do all cans contain BPA?
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International Food Packaging Association secretary general, environmental protection expert Dong Jinshi told reporters that the polycarbonate plastic containing bisphenol A has clean, not easy to break and other characteristics. Manufacturers use it to make various supplies, such as plastic tableware, plastic water bottles, baby bottles, snack cans, etc. Epoxy resins containing bisphenol A are mainly used in the inner coating of food and beverage containers such as food cans and cans. The reason why the packaging box of iron cans and aluminum cans contains bisphenol A is that bisphenol A has a good anti-corrosion effect and can effectively prevent oxygen and microorganisms from entering the can.
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Dong Jinshi reminds, at present contains bisphenol A not only aluminum can cola, with iron can, aluminum can packaging of eight treasure poruel, canned fruit and so on also contains bisphenol A. However, Dong Jinshi also pointed out that this does not mean that all cans contain BPA, some cans are currently made of plastic, as long as they are not made of PC plastic, they do not contain BPA.

Introduction to Chemistry
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Bisphenol A, the scientific name of 2, 2-di (4-hydroxyphenyl) propane, is an important organic chemical raw material, phenol and acetone important derivatives of bisphenol A molecular space filling model organism, mainly used in the production of polycarbonate, epoxy resin, polysulfone resin, polyphenyl ether resin, unsaturated polyester resin and other polymer materials. It can also be used in the production of plasticizer, flame retardant, antioxidant, heat stabilizer, rubber antioxidant, pesticide, paint and other fine chemical products.
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The data show that bisphenol A is a low toxic chemical. Animal tests have found that bisphenol A has the effect of mimicking estrogen, even if the dose is very low, it can make the animal produce early female maturation, sperm count decline, prostate growth and other effects. In addition, it has been shown that bisphenol A has certain embryonic toxicity and teratogenicity, which can significantly increase the occurrence of ovarian cancer, prostate cancer, leukemia and other cancers in animals.

How to choose non-bisphenol A canned drinks
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The market for bisphenol A has not disappeared, and the potential dangers of bisphenol A may exist. So, which packaging is relatively the safest on the market? How to identify plastic products containing bisphenol A?
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When choosing a canned beverage, it is especially important to read the numbers in the triangular sign at the bottom of the plastic bottle. Because each number represents a plastic material, different materials, different performance, safe use conditions are also different.
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According to the national standard, “1″ stands for PET(polyethylene terephthalate), which is generally used in mineral water bottles and carbonated beverage bottles. Heat resistant 70℃, only suitable for room temperature drinks or frozen drinks, high temperature liquid is easy to deformation, long time repeated use may release harmful gases; “3″ represents PVC(7810,15.00,0.19%)(polyvinyl chloride), which cannot be used in food packaging; “4″ represents LDPE(low density polyethylene), used for cling film, plastic film, etc., when it meets 110℃, there will be hot melting phenomenon, so before using the microwave oven, be sure to remove the food cling film first; “5″ stands for PP(polypropylene), which is used in microwave lunch boxes and can be heated; “6″ stands for PS(polystyrene), which is used for making bowls of instant noodle boxes and fast food boxes, but it cannot be heated in the microwave oven, nor can it be used to load strong acid and alkaline substances; The “7″ stands for polycarbonate (PC) and other types, which means that if the number in the triangle is 7, it must contain BPA.

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