Ikozwe muri plastike ya TPA itagira BPA, ituma icupa ryoroha, nyamara rihamye. Icupa rihuye neza nibibero bitewe nimpyiko kandi birashobora gutwarwa byoroshye mumizigo
Icupa ryose rikozwe hamwe na tritan, ni ibikoresho bishya biva muri Amerika, Nibisekuru bishya bya copolyester byakozwe na Eastman Company.Ni BPA Yubusa, Ibidukikije byangiza ibidukikije, Nta burozi, kandi ntibyoroshye kumeneka.