Wannan kayan aiki shine babban sashi a cikin layin samar da cakulan, galibi ana amfani dashi don narkewar cakulan cakulan.Dumama da ruwan zafi a cikin jaket biyu, man koko zai narke a matsayin ruwa.Sa'an nan kuma ciyar da ruwa a cikin injin nika don rage nauyin injin nika.Wannan tsari na iya tsawaita rayuwar amfani da injin niƙa