Kuruhande rwinyuma rwumufuka wa kawa ya aluminium dukunze kureba kuri valve yazengurutswe na valve ifite umwobo muto uzengurutse.Ibyavuzwe haruguru biragoye kumenyekanisha uruhare rwiyi valve.Ibishyimbo bya kawa bitetse, bifunze hamwe nudufuka twa aluminiyumu, kubera inzitizi nziza hamwe na paushan aluminium ya paushan, birashobora gukumira ibishyimbo bya kawa hamwe n’umucyo n’ikirere ndetse no guhumura neza no gukwirakwiza okiside.Iyinjizamo umuyaga yitwa valve imwe, izwi kandi nka aluminium foil ikawa umufuka umwe uhumeka neza, wakoreshwaga munzira imwe yo kuva muri aluminium foil umufuka wa kawa ya gaze.

Umuyoboro umwe wo gusohora umuyaga utandukanye n’ibindi bicuruzwa kubera ko icyuma kimwe gisohora umuyaga gifite akayunguruzo gashobora gutandukanya ingaruka z’amakuru y’ifu kuri valve isohoka mu gihe gaze yasohotse mu gikapu cyo gupakira mu gihe itaretse igikomeye (harimo umukungugu) imbere muri paki isohoka, kandi urebe ko umwuka wo hanze udashobora kwinjira mumufuka.Kubera ko ikawa yatetse mugihe runaka izakomeza gusohora karuboni ya dioxyde (CO2), idafite umufuka umwe wa valve aluminium foil umufuka wikawa wuzuye wuzuyemo gaze, byoroshye guturika, valve yinzira imwe nayo irashobora kuba muri gusohora dioxyde de carbone muri aluminium foil umufuka wa kawa umufuka wa ogisijeni wasohotse, kugirango wirinde impumuro yamavuta ya kawa, bigira ingaruka kumiterere yikawa.

Kubaho kwinzira imwe, ariko kandi kubyo guhitamo ikawa bifite amahitamo menshi.