(All Comotomo parts are interchangeable. For newborn babies, use the 2 pcs extra slow flow nipples included, and change to medium flow when baby is 3mo+)
Safe in: Dishwashers (top-rack), Boiling water, Steam Sterilizers, and Microwaves.
Do not use UV Sterilizers. There is no clear information about the risks or harmful effects of UV Sterilization. Overexposure to UV may generally lead to faster material degradation.