Milk bags is really safe?

Citizens xiao li will drink milk for breakfast every day, for teeth to open direct way to drink. Almost all his breakfast on the way, & other; Drink a bag of milk, I never use a straw to drink the trouble. ” Survey found that many kindergartens in large, medium and small students, office workers, milk can choose bags of milk, because prices are more affordable. And when drinking milk, these people most would choose the tear in the mouth. It contains heavy metal poisoning just to shenyang ninth people's hospital of division of doctor of vice director of six high rim, said long mouth tore milk bags do have the possibility of lead poisoning, because milk is with dye printing, packaging appearance and dye with chromium, mercury, heavy metals such as lead, will affect the reproductive system, hematopoietic system, and the nervous system. Long-term use milk bag mouth to bite, is the possibility of heavy metal poisoning. “ Especially for children, more children to drink milk, but also absorb heavy metal standard low, long-term use of heavy metals to cause harm to the body. ” Safer experts suggest that a cup of drink a lot of packaging expert advice, will direct contact with the mouth of the outer packing, such as cans, disposable paper cups white space surrounding a mouth, also is to ensure that required no printing contact mouth part, or, consumers can choose the protective film attached to the outer packaging as far as possible, so that printing ink from the mouth, that can reduce the security hidden danger. ” Recently, the network spread: because milk is a layer of aluminum foil bags inside, but only a thin layer of polyethylene membrane to separate it and milk, in the process of cooking, polyethylene film will happen in the heat damage, cause there are aluminum, aluminum eventually cause chronic poisoning. , CCTV reporter randomly to buy a box of milk, a experiment was carried out. Results show that the purchase of four kinds of the samples are not checked out aluminum. For the above results, youth committee, deputy director of the Chinese society for composite materials gong 䶮 explanation: the aluminum foil packing most inside have a layer of polyethylene film ( PE film) , under normal circumstances the melting point of above 120 ℃, average water boiling temperature is not enough to destroy the PE film, it won't be in contact with the food, will therefore not be detected with aluminum. That is to say, in the case of packaging meet the national standards, packaging boiled milk does not cause excessive aluminum. But gong 䶮 emphasized at the same time, this kind of soft packing materials, is to facilitate the purchase and carry, and is not used as a heating container, containing aluminum foil packing is absolutely can't use the microwave oven to heat the milk, advised consumers to pour the milk is heated in the container. The United States department of agriculture researchers have developed a more efficient and more environmentally friendly packaging materials & ndash; — Edible milk bags. The researchers found that a major protein in milk, casein can be combined with water to form a new type of packaging materials. This is a kind of edible and biodegradable packaging materials. Because protein structure is more close together, made from casein milk packaging than ordinary plastic bags to better insulate food and air. For some food is sensitive to light, it can also have very good protection effect. In order to soften the packing material, the researchers add glycerin to inside, to join the citrus pectin is for the sake of better moisture and high temperature resistance. At the same time, some spices and vitamin can also be added to the bag, let it the food package by more delicious and nutritious. These packing material will do packing materials is more nutritious than starch, more conducive to human health. So believe in the near future, milk bags will be more and more healthy environmental protection, easy to use.