Repeated use of plastic beverage bottles is not conducive to the body

Recently, the circulation of a bottle of water can be used to cause cancer in the major websites, forums, widely circulated, but also caused public concern about the issue of repeated use of beverage bottles. According to a survey conducted by the Shenzhen Special Zone Daily, many plastic beverage bottles have triangles with three arrows at the bottom and internal numerals 1 to 7 with different numbers. In fact, these numbers represent different materials for the production of beverage bottles. Plastic bottles of different materials vary widely in terms of reuse. Improper use may endanger health.

Water bottle safety attention

My daughter goes to school with bottled water every day. I was very worried when I read the bottle of circulating water bottles on the Internet today. I don't know whether this is true or not. Ms. Li, who lives in Bao'an District, Shenzhen, is very worried about her daughter's health.

At present, Ms. Lee’s post has been widely reprinted by major websites. The quote also says that ordinary mineral water bottles are made of PET (polyethylene terephthalate) plastic. Once the bottle is used, it is safe. There is a danger of causing cancer.

Reuse of plastic bottles is common

Reuse bottle can cause cancer? Is there any basis for this argument? Is it alarmist? A few days ago, a reporter from Shenzhen Special Zone Daily initiated an investigation.

The plastic bottles of mineral water, carbonated beverages, fruit juices, and other beverages that are currently on the market are beautiful in appearance, stylish in design, and easy to carry, and are very popular among people. After the drink is finished, it is reluctant to throw it away and keep it filled with water. The reader, Ms. Zhang, said that she often uses plastic beverage bottles to hold soy sauce, vinegar and other spices in bulk. It's a pity to drink bottle or water bottle after drinking. It's very convenient to use things. Is it not advocating environmental protection now? This is very cost-effective and environmentally friendly. It really serves two purposes. Mr. Chen, a taxi driver, said that in order to facilitate and save money, he often uses mineral water bottles as drinking cups, and they are generally loaded with hot water. However, recently he smelled a strange smell of mineral water bottles, suspected to be caused by the use of bottles for too long.

Citizens not only use plastic beverage bottled water, but some businesses also use it for business. In a store in Longhua Jinglong Xincun, the shop used plastic beverage bottled peanut oil for sale. The store owner stated that I would clean the bottle before loading it every time. It should be safe.

Can be reasonably used in the short term

According to experts, the number marked on the bottom of the plastic bottle is of great significance. The triangle formed by three arrows means that it can be recycled and recycled, but it is not a mark that can be reused. In China, the marking of plastic products for recycling is not mandatory. Some regular large-brand enterprises have recently begun to mark recycling marks in order to facilitate the recycling of plastic products.

Can beverage bottles be reused? For the reader's questions, experts give different answers. Some experts suggest that it is best not to reuse the drink bottle. Because, for example, a beverage bottle made of PET No. 1 (polyethylene terephthalate) is resistant to heat deformation up to 70° C., and it may release carcinogens after 10 months of use. The beverage bottles made of HDPE (High Density Polyethylene) No. 2 are not easy to clean and are prone to bacterial growth. Products made from PVC No. 3 (polyvinyl chloride) and No. 4 LDPE (low density polyethylene) are susceptible to toxic emissions when exposed to high temperatures and oils. The product of PS No. 6 (polystyrene) product releases chemicals when the temperature is too high, and cannot be used for strong acids (such as orange juice) or strong alkaline substances.

Some experts believe that the repeated use of beverage bottles is not as sensational as it is reported online. When using, it is necessary to see clearly the numbers marked in the bottom triangle of the plastic bottle. Under the condition of grasping its material properties, it can fully use its advantages and avoid disadvantages. For those plastic bottles used by the regular manufacturers to hold mineral water and beverages, normal temperature water can be installed in a short period of time. But can not install high-temperature water, should not be loaded with alkaline beverages.

Bottle bottom numbers represent different materials

"Shenzhen Special Zone Daily" reporter visited supermarkets and shopping malls and found that the labelling of beverage bottles sold on the market is rather confusing. The bottom of the bottle of mineral water is marked as 1, the following is also marked with PET English letters, mostly mineral water produced by the brand enterprise. Those unknown mineral water, the bottom of the bottle rarely see signs. Most milk beverages, especially cold-preserved milk beverages, have the number 2 on the bottom of the bottle. The highest mark of the "Shenzhen Special Zone Daily" reporter's rating is 5. It is a brand of aloe vera beverage bottle made in Taiwan. The plastic bottles of tea beverages are darker in color and have fewer labels on the bottom of the bottles. Of particular concern is carbonated soft drinks such as Coke and Sprite. Although many of them are famous international brands, there are basically no triangular figures on the bottom of the bottle.

The significance of the logo on the bottom of a beverage bottle is not only unknown to the general public, but also to the staff responsible for beverage sales in the shopping mall. In a large supermarket in Jingtian, Futian District, two employees are replenishing drinks on the shelves. A reporter of the Shenzhen Special Zone Daily picked up a bottle of mineral water and asked them what they meant by the number 1 in the triangle at the bottom of the bottle.