Yi amfani da na'ura mai tsabta, ruwan gilashi ko wanka tare da rigar tawul don tsaftace alamar ruwa, ƙura, mai, da dai sauransu akan saman bakin karfe, sa'an nan kuma shafa ruwan da tawul mai tsabta maras nauyi. Bakin karfen da aka gama madubi baya buƙatar mai, amma bakin karfen matte yana buƙatar mai. Idan ana shafa mai, sai a zuba man bakin karfen a cikin wata karamar tukunyar feshi, a fesa shi a saman tawul ko bakin karfe, sannan a shafa shi daidai.
Kulawa na yau da kullun. Bakin karfen da aka gama da madubi ana iya goge shi akai-akai tare da ruwan gilashi ko wasu kayan wanke-wanke ko rigar tawul don cire alamun yatsa, alamomin ruwa, tabon ash, da sauransu, sannan a goge shi da rigar da ba ta da tushe; bayan an shafe bakin karfen matte, idan akwai alamun yatsa ko kura, a yi amfani da kyalle mai tsafta mai dauke da dan karamin man bakin karfe a goge shi har sai ya yi haske.
ZANGO kuma yana da tsare-tsare a wannan fanni. Kafin shiryawa, samfuran bakin karfe na DINSEN sun sadaukar da ma'aikata don shafa mai a cikin samfuran don tabbatar da cewa samfuran suna da tsabta da kyau. Bayan an bushe su a rana, ana sake saka kayan a cikin marufi kuma a kwashe su cikin kwalaye don jigilar kayayyaki.