Itandukaniro ryingenzi hagati yubwoko bwingenzi bwicyayi ni urwego rwa fermentation, yerekana ibiranga uburyohe butandukanye, kandi urugero rwa fermentation igenzurwa nuburyo butandukanye.

Icyayi kibisi “gikaranze”

Icyayi kibisi kigomba gukarurwa, ijambo ryumwuga ryitwa "gutunganya icyatsi".

Iyo amababi mashya akaranze mu nkono, ikintu cyitwa “icyayi kibisi”Mu bibabi bipfa kubera ubushyuhe bwinshi, kandi icyayi kibisi ntigishobora gusemburwa, bityo icyayi kibisi gihora kigumana amavuta yicyatsi.

Nyuma yo gukaranga cyangwa gutunganya icyayi, impumuro yumwimerere yumubabi mumababi mashya iratandukana, hanyuma igahinduka impumuro idasanzwe yicyayi kibisi, kandi bamwe bafite impumuro yigituba gikaranze.

Mubyongeyeho, umubare muto wicyayi kibisi ushyizwe hamwe.

Icyayi cyera “izuba”

Hariho imvugo imenyerewe kubyerekeye icyayi cyera, cyitwa "nta gukaranga, nta guteka, gutungana bisanzwe".

Ubukorikori bwicyayi cyera bushobora kuvugwa ko bufite inzira nkeya mubyiciro bitandatu byingenzi byicyayi, ariko ntabwo byoroshye.

Kuma icyayi cyera ntabwo ari ukugaragariza izuba icyayi cyera, ahubwo ni ugukwirakwiza icyayi cyera mu nzu no hanze kugirango byume ukurikije ibihe.

Ubwinshi bwurumuri rwizuba, ubushyuhe, nubunini bwikwirakwizwa byose bigomba kugenzurwa neza, kandi birashobora gukama kurwego runaka.

Mugihe cyo kumisha, icyayi cyera gisembuye gato, bikavamo impumuro nziza yindabyo nuburyoheye, hamwe nimpumuro yumishijwe nizuba.