Koren shayi shayi ne wanda ba shi da fermented, wanda ake yin shi ta hanyar gyarawa, jujjuyawa, bushewa da sauran matakai.Abubuwan da ke cikin sabbin ganye ana kiyaye su, kamar su polyphenols na shayi, amino acid, chlorophyll, bitamin, da sauransu. Babban fasahar sarrafa shayin shayi shine: yada → gyarawa → kneading → bushewa.
Bayan an dawo da sabbin ganyen zuwa masana'anta, yakamata a yada su akan pallet mai bushewa.Kauri ya kamata ya zama 7-10 cm.Lokacin bushewa ya kamata ya zama sa'o'i 6-12, kuma yakamata a juya ganye a tsakiyar.Lokacin da abun ciki na ruwan 'ya'yan itace ya kai kashi 68% zuwa 70%, ingancin ganye ya zama mai laushi, kuma ana fitar da kamshi, ana iya shigar da matakin gyaran shayi.
Gyara shine babban tsari a sarrafa koren shayi.Gyara shine ɗaukar matakan zafin jiki don watsar da danshi a cikin ganyayyaki, hana ayyukan enzymes, da yin wasu canje-canjen sinadarai a cikin abubuwan da ke cikin sabbin ganye, ta yadda za su samar da halayen halayen kore shayi.Gyaran shayi na shayi yana amfani da matakan zafin jiki mai girma don hana ayyukan enzymes da hana halayen enzymatic.Sabili da haka, kula da gaskiyar cewa idan tukunyar zafin jiki ya yi ƙasa sosai kuma zafin jiki na ganye ya tashi na dogon lokaci a lokacin aikin gyaran shayi, polyphenols na shayi za su sha wani maganin enzymatic, wanda zai haifar da "janye ganye ja".Akasin haka, idan yanayin zafi ya yi yawa, za a lalata chlorophyll da yawa, wanda zai sa ganyen ya zama rawaya, wasu ma suna samar da gefuna da tabo, suna rage ingancin koren shayi.
Baya ga wasu shahararrun shayi masu daraja, waɗanda ake sarrafa su da hannu, galibin shayin ana sarrafa su da injina.Gabaɗaya, ana'urar gyara gangunan shayiana amfani da shi.Idan ana gyaran shayin sai a fara kunna na'urar gyarawa sannan a kunna wuta a lokaci guda, ta yadda ganga tanderun za ta rika dumama daidai gwargwado sannan a guje wa dumama ganga ba daidai ba.Idan akwai ɗan ƙaramin tartsatsin wuta a cikin bututu, zafin jiki ya kai 200′t3 ~ 300′t3, wato, ana sanya ganyen sabo, yana ɗaukar kamar minti 4 zuwa 5 daga ganyen kore zuwa ga ganye., Gabaɗaya magana, ƙware a ƙa'idar "daidaitaccen zafin jiki, haɗuwa da gundura da jifa, ƙarancin jin daɗi da yawan jifa, ana kashe tsofaffin ganye da taushi, ana kashe ƙananan ganye a lokacin tsufa".Ya kamata a sarrafa adadin ganyen shayi na bazara a 150-200kg / h, kuma adadin tsohon ganyen shayin bazara yakamata a sarrafa shi akan 200-250kg / h.
Bayan ganyen gyara ganyen yayi duhu koren launi, ganyen yayi laushi kuma yayi ɗan ɗanɗano, sai a dunƙule ganyen a koda yaushe, sai koren gas ɗin ya ɓace, ƙamshin shayin ya cika.