experts point out that poor quality sucker will produce harmful substance
many suckers on the market are "three no" products, so what is the regular sucker like? In a supermarket on the calendar mountain road, the reporter sees that the sucker is a package sale, the bag is printed with the manufacturer's information and the production license. It is clearly marked that the heat resistance temperature and the cold tolerance temperature are 90 and 10 degrees respectively. The material is clearly marked polypropylene and has the "QS" mark.
Wang Shouhai, polymer material worker of Shandong University, said that polypropylene plastic is non-toxic and harmless to human body. Qualified pipette made of polypropylene can withstand high temperatures of about 80 degrees Celsius, so the straw will not decompose when it is heated. "Straw made of inferior plastic may be made of industrial polyethylene or waste plastic, and the quality is difficult to guarantee. Poor quality straw in the encounter high temperature, will produce small molecules of ethylene and other harmful substances, long-term use will damage the liver, lead to blood diseases, and children's mental development will also have adverse effects.
experts suggest that the public should minimize the use of straws. If it is not possible to confirm the safety of the pipette, it is better not to use straws. Or wait until the hot drink is slightly cooler and drink more. It is better to choose a colorless straw instead of a colored straw. "Coloured pipette is likely to be a manufacturer to disguise the inferior quality of materials."
tips teach you to identify the quality of the suction pipe
"see": the outer packing of the sucker has no "QS" sign, black spot impurities or broken bubbles.
"smell": whether there is any pungent odor before the suction tube is not touching the beverage.
"pinch": if the sucker is pinched, it is flat and inelastic, indicating that the suction pipe is made of relatively thin material with poor quality and will be easily sucked down in the process of use.