Our PPSU bottles can be sterilized via the boiling, steam, ultra-violet ("UV") and sterilizing tablet method.
For sterilization by boiling: Bring the water to a boil, turn off the gas/induction, submerge components in the boiled water for no more than 5 minutes.
Do note that our PPSU bottles are able to withstand -4 degrees Fahrenheit up to 356 degrees Fahrenheit in temperature while PP and Silicone parts are able to withstand up to 230 degrees Fahrenheit, please do remember to check that your sterilizer does not exceed the aforementioned temperature range.