(1) Pasuru yacho ine zipi yakavharwa, inogona kushandiswa zvakare uye inogona kuvhara chigadzirwa.
(2) Yemahara yeBPA uye FDA-yakatenderwa giredhi rekudya zvinhu.
(3) Inovharira kunze kwechiedza cheultraviolet, okisijeni uye hunyoro kubva kunze kwenyika, ichiichengeta iri nyowani kwenguva yakareba sezvinobvira.