Duka tsarin fasaha da tsarin aiki na tsarin fermentation zai haifar da gurɓataccen gurɓataccen yanayi, da gurɓata yanayin yanayi, kuma yana shafar rayuwar al'adar mutane.Abubuwan gurɓatawa kamar wari, najasa, ƙura, hayaniya, girgiza, karafa masu nauyi, da sauransu. Yayin aikin ƙira.
Kara karantawa