Amababi yicyayi akenshi asenyuka hamwe nubufasha bwa aImashini isumba ry'icyayi, ariko icyayi cyijimye ni icy'ingenzi cya microbitwari extomention, hiyongereyeho imyumvire ya eczymatique y'amaye yiyerekanwa ubwayo, muri mikorobe yo hanze nayo ifasha fermentation yayo. Mu Cyongereza, inzira yicyayi yumukara isobanurwa ngo "okiside", ni ukuvuga okiside, mugihe icyayi cyijimye ni fermentation nyayo "ferment".

Fermentation ni inzira idasanzwe yumusaruro wicyayi wijimye. Mu cyayi cyijimye nyumaImashini izunguruka kugoreka, inzira yikirundo mubyukuri ni inzira yo gusebanya, icyayi cyijimye ikirundo cyoroshye, kuminjagira amazi, icyayi cyijimye muriImashini yirabura igabanya imashini itunganyaNyuma yurwego runaka rwubushuhe nubushyuhe, hagati yikirundo mugihe ubushyuhe bugera kuri doltius 70, kugirango duhindure ikirundo celsite kugirango dukore urutoki inshuro nyinshi. Guteza imbere uruhare rwa enzymes mu cyayi, hamwe nibikorwa bya mikorobili, kugirango uteze imbere icyayi.

Iyo ibintu byose ari byiza, mikorobe yabanjirije, hamwe na exphenoles zitemewe, zishobora gusenya ibyinshi bya polyplanol, protoinen, tegentine, na porotene, hamwe nibindi bintu byijimye byijimye.

Kandi usibye fermentation ya fermentation, icyayi cyijimye gifite fermentari yisumbuye idasanzwe, izwi kandi nka nyuma ya fermentation, nicyo porogaramu nyayo yicyayi cyijimye.

Inzira yanyuma yicyayi cyijimye nuko amababi yicyayi akandamijwe mumatafari cyangwa imigati kuriIcyayi cake imashini kujya mu muhanda muremure w'icyayi. Kuri uyu muhanda muremure, amababi yicyayi asanzwe abikwa mu guhumeka, ubushuhe n'ubushyuhe, hanyuma nyuma y'imyaka mike fermentation, iyi nzira irazwi cyane, izwi kandi ku izina rya nyuma.