Ngati chiwongolero cha mzere chikugwiritsidwa ntchito, chiyenera kutsimikiziridwa kuti chimakhala ndi mafuta abwino. Ngati kuyamwa kwamafuta sikukwaniritsidwa, kusinthasintha kwachangu kumakhala kovala kwambiri, zomwe zingakhudze kutsata ntchito ndikuchepetsa moyo wautumiki.