Experts suggest that the hottest food grade plasti

2022-08-12
  • Detail

Food grade plastic bags can release harmful substances when exposed to high temperature. Experts suggest using plastic bags with caution

release date: Source: Jinyang editor: Yu Jia browse times: 2940 copyright and disclaimer

core tip: is it harmful to human body to use plastic bags to cover bowls with hot food? Several plastic bags of different grades were purchased and sent to Guangzhou Institute of food and drug safety for testing every week. The results showed that not only unqualified plastic bags containing food would bring harm, but food grade plastic bags would still release harmful substances when encountering high temperature and high oil. Authoritative experts suggest that you should use plastic bags less or with caution to contain food

[China Packaging News] is it harmful to human body to use plastic bags to cover bowls with hot food? Recently, a reader reported to this newspaper that the breakfast stall downstairs in his community directly wrapped bowls with plastic bags and sold them to diners, suspecting that this would pollute the food. To this end, Yangcheng Evening News bought several plastic bags of the same grade that can't be used in the same industry. They were sent to Guangzhou Institute of food and drug safety for testing every Monday. The results showed that not only unqualified plastic bags containing food would cause harm, but food grade plastic bags would still release harmful substances when encountering high temperature and oil. Authoritative experts suggest that you should use plastic bags less or with caution to contain food

plastic bags for bowls save the dishwashing procedure

recently, I received a report from the reader Mr. Liu that the breakfast business sold in a small shop downstairs in his community is very popular. He found that in order to save the washing up, the stall owner put a plastic bag in the bowl, and then directly poured the cooked food and hot soup into it. After the guests finish eating, the stall owner turns the plastic bag over and picks it up, discards it together with the rest of the food, and then takes out another plastic bag and puts it in the same bowl for recycling

Mr. Liu said that the white plastic bag was very thin, and there was no QS mark or special food mark on it

stalls often use non food grade plastic bags

Yangcheng Evening News found that many night snack stalls and snack stalls in the streets of Guangzhou directly use plastic bags to cover bowls to contain food. If some guests ask to pack and take away, the shopkeeper will also use plastic bags

in Guangzhou Nantian international hotel supplies wholesale market, we can see that there are a wide variety of plastic bags with different prices, each screen just shows 10 complete sinusoidal samples. The price difference between plastic bags with special food signs and those without special food signs is two to five times. In a wholesale store, a white plastic bag without any text marks costs 4 yuan per bundle (100). Merchants said that in order to reduce costs, this kind of plastic bag is very popular with all kinds of food stalls

identify whether the plastic bag is poisonous by fire

the temperature range of the plastic bag rapid temperature change experimental box is - 55 ~ + 80 ℃. Can you eat delicious food at ease? In this regard, Yangcheng Evening News bought several ordinary plastic bags (PVC) and food grade plastic bags (PE polyethylene) and sent them to Guangzhou Institute of food and drug safety for testing every Monday from December 18 to 19. Researchers used fire detection method and high oil temperature hot melt energy detection method to carry out two groups of tests

fire detection method: in the special experimental cabinet, researchers lit PE plastic bags and PVC plastic bags respectively. The former burned rapidly after ignition, and the flame was yellow. When burning, it was like a candle, and there were melts dripping on the ground; The flame of the latter is yellowish green, flame retardant and not easy to burn, and it will extinguish immediately after leaving the fire

high oil temperature hot melt energy detection method: PVC plastic bags begin to deform when the oil temperature reaches 90 ℃, and their components melt with the increase of oil temperature; When the oil temperature exceeds 100 ℃, the PE plastic bag also slowly begins to soften and deform, and melts with the increase of oil temperature

the staff said that ordinary consumers can judge whether the plastic bag is toxic by their hand feeling: the non-toxic plastic bag is milky white or colorless and transparent, and there is a sense of lubrication when touching it; The toxic plastic bag is muddy or light yellow in color, and feels sticky

use plastic bags with caution to contain food

Zhu Yi, associate professor of the school of food science and Nutritional Engineering of China Agricultural University, told Yangcheng Evening News that food grade plastic bags are relatively safe to contain food. However, in case of high temperature and oil, heavy metals, plasticizers and some unstable substances in plastic bags will dissolve into food, which will also cause harm to human body. She suggested using plastic bags less or with caution to contain food

Copyright © 2011 JIN SHI