PPSU material is the new favorite of plastic industry for baby feeding bottle. It is a new material widely used in the Medical field. It is BPA (Bisphenol A) free, with a charming bee honey color. Light weight and hard texture.
Compared to PP material, it's heat-resistant can up to 180'C, repeated sterilization is available and with a steady chemical property. It is a better alternative than other plastic, not only is completely BPA free, but it has a much better mechanical resistance.