How often to change the bottle

　　1. PP material bottle

　　This kind of baby bottle is light in weight, not easy to break, and cheap, but has a short lifespan, short high temperature resistance time, easy oxidation, and poor corrosion resistance. Frequent use may lead to poor permeability of the bottle body and accumulation of milk scale. Therefore, it is recommended to replace it once every six months. If it is worn or damaged, it needs to be replaced immediately.

　　2. PPSU and PES material feeding bottle

　　Both are made of polysulfone, high-performance special engineering plastics, and the price is relatively high. The advantages are also obvious, with strong heat resistance and long service life, with a service life of up to 12 years under the steam of 145 °C. PPSU is better, and its corrosion resistance far exceeds that of PES.

　　3. Glass material bottle

　　Except for its heavy weight and brittleness, glass basically has no other shortcomings. As long as you pay attention to daily disinfection, it can be used all the time.

　　How to sterilize milk bottles

　　1. Glass milk bottles: Sterilize once a day if conditions permit, which can be directly placed in a pot for sterilization with boiling water, or can be sterilized in a steamer or microwave oven for 8-10 minutes each time.

　　2. Plastic feeding bottle: Prepare a special sterilizing pot, put the feeding bottle in boiling water for 8-10 minutes.

　　3. Plastic products such as pacifiers and bottle caps: After boiling water for 5-10 minutes, put plastic products such as pacifiers and bottle caps into the pot and cook for 3-5 minutes.

　　TIP: When sterilizing, the water should flow over all milk utensils to avoid contact with the bottom of the pot to cause damage; prepare specially sterilized utensils, do not mix them with everyday pots; after turning off the fire, use sterilized chopsticks when the water is slightly cool. Remove the milk set with the clip; check the milk set before and after use, and replace it in time if it is damaged.

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