Icupa ryamazi ni BPA kubusa kandi nta mpumuro nziza, ikozwe muri BPA idafite ibiryo-byo mu rwego rwa silicone, byatsinze icyemezo cya FDA
Igishushanyo mbonera gishobora gufungwa neza kugirango ingendo no kubika amazi, amata, nibindi, birinda icupa gufungura kubwimpanuka bottle Icupa ubwaryo rifunze neza kandi ntirizatemba.