Menene aikin mirgina ganyen shayi: birgima, daya daga cikin hanyoyin samar da shayi, galibin hanyoyin yin shayi suna da wannan tsari, abin da ake kira rolling ana iya fahimtar ayyuka biyu ne, daya cukuda shayi, cukuda shayi ko da shayin ya fita. ana yin tsiri, daya yana murzawa, yana murzawa Kwayoyin shayin sun karye, sannan a matse ruwan shayin, ta yadda ruwan shayin yana manne a saman mashayin shayin, wanda hakan yana kara dankowa kuma yana taimakawa wajen samuwar. na siffar ganyen shayi.

Baya ga yin siffa, aikin birgima ya fi haifar da karyewar kwayar halitta da zubar ruwan shayi.Ruwan shayin da ya zubar yana manne da saman ganyen da aka kafa.Bayan bushewa, ana iya yin launi da dandano ta hanyar shayarwa.Don haka dunkulewa wani tsari ne da ya wajaba wajen yin kowane irin shayi (sai farin shayi).

Aikinshayi birgimashi ne a sanya ganyen shayin ya zama tsintsiya madaurinki daya, na biyu kuma a karya kwayoyin halittar da ke cikin ganyen shayin, sai ruwan shayin ya cika ya manne da saman ganyen shayin, wanda hakan yana da fa'ida wajen kara natsuwa da miyar shayin, wanda hakan zai haifar da da mai ido. shine kuma dalilin da yasa shayin ya bar miya da sauri.Yawan nauyin ganyen shayin, da karancin juriyar ganyen shayin wajen kumfa.

Akwai hanyoyi guda biyu na ƙulluwa, ƙwanƙwasa da hannu da kuma kuɗa na inji.A halin yanzu, in ban da wasu shahararrun sarrafa shayi, waɗanda har yanzu suna riƙe ɗan ƙaramin jujjuyawar hannu, yawancinsu sun sami nasarar sarrafa injina.