There are big differences in the selection of different materials of milk bottles.pacifier for baby manufacture

　　Environmental hormones: It is not a hormone secreted by the body that we are familiar with. On the contrary, it is a chemical substance that interferes with the normal hormone function of the body. If the human body ingests these chemicals, it will play the same or interfere with the role of human hormones, causing variation, especially reproductive variation. Some milk bottles of poor quality may dissolve a chemical called bisphenol A (Bisphenol A for short BPA) when they are cleaned with high temperature disinfection, which is a manifestation of "environmental hormones".

　　BPA: It is also called bisphenol A. It is an important organic chemical raw material. It has the characteristics of light weight, good transparency, impact resistance and heat resistance. It is mainly used in the production of polycarbonate plastic (PC for short). products, including baby bottles. But usually PC milk bottles may release BPA when the temperature is above 110℃.

　　Several materials commonly used in making milk bottles

　　Glass: The earliest glass bottle used by everyone is relatively the safest bottle. The main reason is that glass does not produce toxic substances during the high-temperature cleaning and disinfection process. However, the usability of glass milk bottles is not as good as that of later plastic milk bottles. For example, if the baby is drinking milk from a glass bottle, it is easy to accidentally break it, and the glass fragments are also dangerous to the baby. Glass feeding bottles are also relatively heavy and inconvenient to carry. In addition, breastfeeding for a long time will pity the parents' arms. This is an important reason why non-toxic plastic feeding bottles can dominate the current market.

　　PC: It is commonly known as space glass, which is used in most baby bottles on the market. Isn't that most of the bottles are poisonous!? Careful you should find that the premise of a bottle producing toxins is high temperature cleaning and sterilization. PC baby bottles will release toxic substances when the temperature is above 110 °C, but generally we use hot water and a sterilizer, and the highest temperature of the two is between 100 °C and 105 °C. As far as the 5°C gap is, is it really safe? Of course, some people think that the promotion of PC feeding bottles is a market hype, because parents want to buy more expensive PES and PPSU feeding bottles. Therefore, there is still controversy about PC milk bottles, and no authoritative organization can give a definite answer.

　　PES: It is the abbreviation of polyethersulfone resin, which can withstand high temperature of 180℃. Basically solved the dissolution problem of BPA.

　　PPSU: Its full name is polyphenylsulfone. Its material is similar to PES, and it can also endure high temperature. The only problem with these two bottles is the price

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