❤️What You Need To Know About Material of Milk Bottles❤️ Like most parents, we want our milk bottles to be safe and non-toxic; thus look for labels that say BPA free, PVC free and phthalate free. But that is not enough. We also want a milk bottle that is practical for everyday frequent use. This is where the composition of your baby’s bottle plays a part. There are 2 main categories of milk bottles: Glass & Plastic. 📌Glass Glass milk bottles have been around for many years and should always be the first choice. Even at the highest boiling points, borosilicate glass material does not leach or release toxic chemicals and has excellent transparency. Glass milk bottles can last a lifetime if cleaned and stored properly. 📌PP PP (polypropylene) milk bottles are the most common kind of plastic feeding bottles. They are durable, flexible and economical. Used to manufacture household items, PP milk bottles are available in clear and color-tinted transparency (like those of sports water bottles). Though PP bottles can withstand heat of up to 120°C, they may lose transparency over time with frequent sterilization and exposure to boiling water. This is not a good sign as it indicates a chemical component breakdown of the bottle’s plastic makeup. For this reason, it is recommended to change your PP milk bottles once every 6 months or when you notice a change in the bottle’s texture. 📌PPSU PPSU (polyphenylsulfone) is the highest performing thermoplastic that gives better durability and heat tolerance than PP and PES. Not only can it withstand continuous exposure to heat and have extreme capability to absorb impact, PPSU plastic does not absorb odor or color. It is naturally BPA free. Due to its a high melting point of 208°C, PPSU plastics are commonly used in aerospace and medical devices that require repeat sterilization. PPSU milk bottles are significantly more expensive than PP and PES bottles, but if you are willing to spend on milk bottles that your baby uses 5-6 times a day every day, this makes for a worthy investment. Despite its supreme durability, it is advisable to change your PPSU milk bottles yearly.