Before first use, dissemble all parts of the bottle and wash with undiluted baby bottle detergent and rinse in clean water thoroughly before sterilising. Depending on your preferred method of sterilisation, do ensure that the sterilising instructions of the sterilisation device should be carefully observed.
Do note that our PPSU bottles are able to withstand -20°C up to 180°C in temperature while PP and Silicone parts are able to withstand up to 110°C, please do remember to check that your steriliser does not exceed the aforementioned temperature range.