1. Danshi ganye.Tare da ci gaba da asarar ruwan ganye mai laushi, yawancin abin da ke ciki za a bazu, oxidized da ɓacewa, wanda zai shafi ingancin shayi a ɗan ƙaramin digiri, kuma zai haifar da lalacewa.sabon hutus kuma rasa darajar tattalin arziki a lokuta masu tsanani.Sabili da haka, don kiyaye shayin sabo ne, ana amfani da hanyar fesa yawanci don kiyaye sabon wurin ajiyar ganye a cikin mafi zafi.

2. Zazzabi.Yanayin zafin jiki na waje ya fi shafar shakar sabbin ganye.Mafi girman zafin jiki, da ƙarfin numfashi na sabbin ganye, kuma mafi girman zafin ganye, ƙarfin aikin enzyme, wanda ba shi da kyau ga ingancin shayi.Sabili da haka, ƙananan zafin jiki da ya dace yana da kyau don kula da sabo na ganyen shayi.

3. Oxygen.Idan samun iska ba shi da kyau a lokacin ajiya, numfashin anaerobic na shayi zai kara yawan aikin enzyme, yana hanzarta bazuwar kwayoyin halitta, kuma yana kara yawan iskar shaka na polyphenols.A cikin aiwatar da hypoxia, sabbin ganye a hankali za su haifar da wari mara kyau ko ɗanɗano mai ɗanɗano, wanda zai yi mummunan tasiri ga ƙamshingama shayi.Don haka, a cikin tsinken ganye, da jigilar kayayyaki, da kuma ajiyar magungunan gargajiya na kasar Sin, ana kiyaye zirga-zirgar iska don hana shakar danyen ganyen anaerobic da kuma shafar ingancin shayi.

4. Makanikailalacewa.Bayan sabbin ganyen suna fama da lalacewar injina, a gefe guda, numfashin sabbin ganyen yana ƙara ƙarfi kuma zafin ganye yana ƙaruwa da sauri;a gefe guda, yana haifar da enzymatic oxidation na polyphenols, wanda ke da saurin canza launin ganye.