With so many types of feeding bottles to choose from, parents are sometimes confused most by the material of the bottle. There are 3 common plastic materials which are namely, PP(Polyphenylsulfone), PES(Polysulfones), and PP(Polypropylene).
PP or Polypropylene makes up the majority of the market due to economical prices. Among them, PPSU or Polyphenylsulfone is the de facto for quality due to its ability to withstand high heat and scratches and it is the most chemical resistant plastic bottles. However, PPSU also comes at a premium price due to its technical difficulties in producing them. When choosing the type of plastic bottles, one very important thing to consider is the frequency that you would be changing the bottles. PP bottles having the shortest life span will have to be switched frequently to prevent bacteria from growing.
Then they are glass bottles too. There are 2 major types of glass bottles, namely Traditional and Borosilicate. Borosilicate has higher endurance when it comes to thermal shock so it can withstand extreme changes in temperature without cracking. Borosilicate glasses are used to make beaker and test tube used in a laboratory. It is also the material that makes the miraculous unbreakable baking glassware that grandmom uses every day. On the other hand, Traditional Glasses are made into soda bottles and milk containers. Borosilicate glasses are comparatively lighter, thinner, and stronger than Traditional glasses.
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