Latex teat: the product is made of natural latex rubber which may cause allergic reactions. PP (polypropylene) bottle: Polypropylene material is indicated on the bottle with the sign "PP".
To boil the bottle or to steam sterilise it (temperature above 80°C), always disassemble all parts and leave it open, otherwise it may become deformed. Some nutrients in certain drinks (e.g. carrot juice) may change the colour or smell (e.g. fennel tea). This does not cause any deterioration of the bottle and does not affect its suitability for use or safety.