(1) Umufuka udasanzwe, umufuka wubatswe.
(2) Zipper irashobora kongerwaho kumufuka kugirango ikureho imifuka.
(3) Amarira arakenewe kugirango abakiriya bafungure imifuka yo gupakira byoroshye.
(4) BPA-KUBUNTU na FDA byemejwe ibyiciro byibiribwa.