Ko te pounamu wai he BPA kore-kore me te kore kakara, he mea hanga mai i te silicone pararopi kai-kore-kore BPA, kua paahitia te tiwhikete FDA
Ko te hoahoa potae hurihuri ka hiri pai mo te haerenga me te rokiroki wai, miraka, aha atu, ka aukati i te whakatuwheratanga o te pounamu , Ko te pounamu tonu te hiri ka kore e pakaru.