Pigeon offers different bottle material catering to different needs.
If you are to use UV sterilizer, T-Ester will be the more suitable option to choose because of its high UV resistance.
If your sterilization method is steam sterilizer or boiling, you may consider PPSU which has the highest heat resistance.
If you prefer to use a UV Sterilizer as the main sterilization method to sterilize PIGEON plastic and silicone material products, you may continue to do so. However, do note that UV Sterilization may subject the material to premature aging, especially if it is subjected to repeated sterilization. Therefore, we recommend you replace the product when it starts to discolour and/or turns cloudy.