How to cover food containing toxic substances?

China Central Television (CCTV) on July 28 has announced 15 of 16 types of PVC food covering films containing DEHA plastic, which have been banned from use since 2005. In it, the lowest sample exceeded 98 times, the highest level exceeded 472 times, the average exceeded 200%.

Mr. Dong Kim Su, a Chinese food safety expert, said that the main danger of PVC coating film is hormonal influences, endocrine disorders. The main phenomenon is that some estrogens will increase, male hormones decrease, which makes men infertile and female develop into young girls, greatly influencing sexual development in children.

In Vietnam, there are many types of film coated with food produced domestically and imported from Thailand, China, Japan . with plastic materials mainly PVC, PE . Dr. Vo Hoang Nam, Vietnam Association of Materials Science, polymer researcher said, PVC films made of polyvinyl chloride, to increase flexibility, manufacturers must 'recourse' to some plasticizers such as DEHA (Di ( 2. ethylhexyl) adipate), DEHP (Di (2.ethylhexyl) phthalate) . And PE plastic film made of polyethylene, which is flexible and transparent, so rarely manufacturers use additives, so there is a degree of Higher safety than PVC.

To distinguish PVC and PE films, it can be based on some signs: light yellow PVC film, white PE film; PVC film touches the feeling of sticking hands, rubbing hands is not easy to separate, PE film is less sticky, easily separated when rubbing hands. It is also possible to try burning a small piece, if the PE film will burn quickly, leaving the fire source will not turn off, while the PVC film is difficult to catch fire, leaving the fire source will turn off, having a pungent odor . 'To minimize the darkness Many risks from using food wrap film, should only buy products of reputable brands, registered and quality control with management agencies.

Limit the use of food wrap when it is too hot. Both with PVC and PE films, it is necessary to limit the packaging of greasy food, without covering the film when heated in the microwave . PVC coated film is only suitable for unprocessed food and needs to be washed again. When processing, PE film is suitable for preserving processed food ' , Dr. Nam noted.