Health knowledge that you don't know: plastic bottles actually have a shelf life
Plastic baby bottle without bisphenol a
Recent remarks that bisphenol a may cause heart disease have caused an uproar in the plastics world, which is not just a problem with bisphenol a bottles. The entire plastic products have been questioned. Does the plastic product have any harm to the human body? Interview experts have learned that the repeated use of plastic bottles such as beverage bottles and mineral water bottles has no scientific basis, but if the plastic bottles are reused for a long time, it may There are hidden dangers. The bottle for moms is the same. Plastic bottles also have a shelf life, so you need to pay attention to many problems when using them.
"I just want to know, in addition to the bottle, is it necessary for other plastic products to have a production date and shelf life? What are the adverse effects of expired use? Do people know this?" Ms. Liu's question also attracted the interest of reporters. On December 14, with these questions, the reporter interviewed a dozen people who were shopping in supermarkets and shopping malls. "Food can not be eaten after the period, the bottle expired is more dangerous!" Recently, the provincial city citizen Ms. Liu sent a hotline to the newspaper. Two days ago, her mother-in-law brought a bottle to her grandson who had just been born for two months. Inadvertently found out that it has expired, and the child crying very badly when eating milk, do not know if it is the reason for the bottle expired, which makes her very scared.
Ms. Liu said that her mother-in-law said that the bottle was used by her granddaughter four years ago, and it was still very new after a few days. It should be used now. Today, Ms. Liu accidentally saw the bottle when she saw it. The bottom of the bottle was marked with the production date in August 2005 and the shelf life was 3 years. "I really don't know if the bottle has a production date and shelf life. But the bottle has expired. It should definitely not be used?" Ms. Liu said that she then noticed plastic products such as plastic cups and microwave plastic boxes around her and found that 2/ None of the 3 plastic products have a date of manufacture and a shelf life.
“Whether I store food, or store spices, store meals and drink water, all the plastic products are all in one color.†Zhang Xia, who buys plastic storage boxes at the supermarket, said that she has used plastic products for five or six years, but never Note the production date and shelf life. Zhao Xianyun, who bought a plastic lunch box, said that when he buys plastic products, he will pay attention to whether there is a QS mark, but he pays little attention to the production date and shelf life.
Ms. Li, who is buying plastic products in the shopping mall of Shuangta Mall, said that she knows that plastic lunch boxes can't be heated and beverage bottles can't be drained. However, it is not known that plastic products will release harmful substances when they expire.
The reporter saw in a large supermarket that the plastic bottles here are marked with the production date and shelf life of more than 90% of the baby bottles. The plastic bottles in the households only account for 40% of the production date. Among them, the brands such as Locks and Haofeng Plastic products have a clear date of manufacture and shelf life, and the shelf life is usually three to five years. Subsequently, the reporter visited Kangda Mall, Shuangta Mall and other daily necessities stores.
Whether it is a plastic cup or a plastic container, there are very few production dates and shelf life. "Plastic products are made of different resin materials, and will release toxic substances under different conditions of temperature and humidity." The staff of the Quality Supervision Bureau of Shanxi Provincial Quality Supervision Bureau said that there is no unified standard in China. Industry Standard. Some bottles produced abroad, although marked with a shelf life of 10 years, but after repeated use, especially after high temperature heating, will release the toxic substance bisphenol a, so try not to heat when using, do not direct in the sun.
"At present, China uses the triangle symbol as a plastic recycling mark, which can remind consumers to use it correctly from the material." The staff said that there is a triangle at the bottom of the plastic bottle, and there are 1-7 numbers inside, each number represents a different one. The material indicates which resin the product is made of. For example, plastic products containing PC components such as bottle bottles and space cups are marked as “7â€, and mineral water bottles and carbonated beverage bottles are marked as “1â€.
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