Ikawa

Ukurikije uburyo bwo gutanga ikawa, gupakira ikawa birashobora kugabanywa mubice bitatu, ibishyimbo byoherezwa mu mahanga ibishyimbo byoherezwa mu mahanga, ibishyimbo bya kawa bikaranze (ifu), hamwe n’ikawa ya kawa ako kanya. Gupakira ibishyimbo bya kawa (ifu)

(1). Umufuka:

Imifuka muri rusange igabanijwemo: gupakira bitari mu kirere, gupakira vacuum, gupakira inzira imwe, gupakira igitutu.

Ibipfunyika bidafite umuyaga:

Mubyukuri, ni ubwoko bwo gupakira by'agateganyo, bukoreshwa gusa mububiko bwigihe gito.

Gupakira icyuho:

Ibishyimbo bya kawa bikaranze bigomba kubikwa mugihe runaka mbere yo kubipakira kugirango hirindwe dioxyde de carbone kwangiza ibipfunyika. Ibipfunyika birashobora kubikwa mugihe cibyumweru 10.

Reba ibikoresho bipfunyika:

Ongeraho valve imwe kumurongo kumufuka wapakira bituma dioxyde de carbone yakozwe isohoka ariko ikabuza kwinjira mumyuka yo hanze, ikemeza ko ibishyimbo bya kawa bitaba oxyde ariko ntibishobora gukumira gutakaza impumuro nziza.

Gupakira igitutu:

Ibishyimbo bya kawa bimaze gutekwa, bipakirwa vacuum hanyuma bikuzuzwa gaze ya inert kugirango bifunge. Ubu bwoko bwo gupakira burashobora kwemeza ko ibishyimbo bya kawa bitazaba okiside, impumuro ntizatakara, kandi imbaraga zirahagije kugirango ibipfunyika bitangirika kubera umuvuduko wumwuka. Irashobora kubikwa kugeza kumyaka ibiri.