Nthawi zambiri amagwiritsidwa ntchito m'makampani azitsulo, mosiyana ndi koyilo yotentha yotentha.Zimatanthawuza chingwe chachitsulo chomwe chimakulungidwa mu makulidwe akutiakuti mwachindunji ndi mpukutu ndikuchikulungiza mu mpukutu wonse ndi mphepo pa kutentha kwabwino.Poyerekeza ndi koyilo yotentha yopiringizika, kozizira kozungulira kozungulira kowala kowala, komaliza kwambiri, koma kumatulutsa kupsinjika kwamkati, nthawi zambiri pambuyo pochiritsa kuzizira kozizira.
Chifukwa palibe kutenthetsa popanga, palibe vuto la pitting ndi oxide sheet lomwe limapezeka nthawi zambiri pakugudubuzika kotentha, ndipo mawonekedwe apansi ndi abwino komanso kumaliza kwake ndikwambiri.Kuphatikiza apo, kulondola kwatsatanetsatane kwazinthu zoziziritsa kuzizira ndikwambiri, ndipo mawonekedwe ndi kapangidwe kazinthuzo zimatha kukwaniritsa zofunikira zina, monga ma elekitiroma, zojambula zakuya, ndi zina zambiri.