As the weather gets warmer, more and more people join the wave of exercise and fitness, then a suitable sports cup has become particularly necessary. Because of its changeable shape, bright color, not afraid of beating characteristics, plastic cups have been favored by many people, especially sports people. However, at present, people still ignore the health and safety problems of drinking cups used in daily life, and even there are misunderstandings, so, in the face of a wide variety of brands and types, what kind of drinking cups to choose? In the face of PC and PP water bottles on the market, which one is safer?

How to choose a plastic cup

PC is polycarbonate, is one of the common plastics, this material itself is non-toxic, especially for the manufacture of baby bottles, space cups, etc., because it contains bisphenol A and is controversial. In theory, as long as bisphenol A is converted into A plastic structure in the process of making PC, it means that the product is completely free of bisphenol A, and it becomes non-threatening to health. However, if A small amount of BPA is not converted into the plastic structure of PC, it may be released into food or drinks, threatening the health and safety of users, especially young people. PP is the abbreviation of polypropylene, it has good heat resistance, products can be sterilized at temperatures above 100 ° C, under the condition of no external force, 150 ° C is not deformed, is one of the common microwave oven plastics. However, a careful investigation will find that PC material products on the market are often more expensive than PP material products, and customers tend to rush to the concept of "the more expensive the better the quality" to choose, in fact, the price difference is because the price of 1 ton of PC on the market is much higher than the price of 1 ton of PP. Compared with the two materials, it will be found that the wear resistance of PP is worse than that of PC, so when making transparent cups, PC is generally used as a material, and PC products are more beautiful than PP products. However, from a safety point of view, the processing temperature of PP plastic manufacturing reaches 180 ~ 240 ° C, so the boiling water will not decompose it, so PP is safer than PC.

PC water cup filled with boiling water can be harmful?

The glass with the number 7 at the bottom is made of polycarbonate, that is, PC. The general plastic cup of PC material can withstand the temperature of -30-140 ° C, but this is the physical properties of the material, which just means that this material will not crack and melt when used at this temperature. However, when we start from the perspective of food safety, we will find that with the higher the temperature, the more residual bisphenol A in PC will be released, and the faster the speed. So the reason why PC has A health threat is because it will release bisphenol A at high temperatures, so this makes people "smell the color change" bisphenol A in the end who is sacred? Bisphenol A (BPA) is a material commonly used in industry to synthesize PC and epoxy resins. In modern industry, bisphenol A can be said to be everywhere, from mineral water bottles, medical equipment to the inside of food packaging, it has been found. Every year, nearly 27 million tons of BPA-containing plastics are produced worldwide. Although it is very useful in industry, but the harm to people is not small, according to research bisphenol A can lead to endocrine disorders, and may even cause cancer and metabolic disorders caused by obesity. The European Union believes that bottles containing bisphenol A can induce premature puberty, and from March 2, 2011, the production of baby bottles containing the chemical bisphenol A has been banned. Therefore, do not use a PC material cup with hot water under conditions, let alone place it in the microwave oven to heat.

Advice to consumers from inspection and quarantine departments:

1. When buying a plastic cup, read the instructions carefully and follow the instructions to use it.

2. Clean the kettle without dishwasher or dryer. If it is found to be damaged or deformed, do not use it, because if there are fine pit lines on the surface of plastic products, it is easy to hide bacteria.

3. Some water cups are colored, which means that the color masterbatch is added in the processing of plastic, and it is recommended that this cup be used as little as possible. 4. Do not use PC material products when heating, not in direct sunlight. Unless the package says you can add it in the microwave, do not microwave it. The cup body and lid of some plastic cups are different plastic materials, and consumers should pay attention to them when using them.