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Kutembenuza yankho la kusintha kwa mafuta
Mafuta ogwiritsa ntchito mafuta, mafuta opangira mafuta, ndi mitundu yosiyanasiyana, magalimoto, zombo zothira mafuta odzola, mu ntchito yoipitsidwa kunja kuti ipange chingamu, kapena kuti zingathekeyende bwino. Zifukwa zazikulu: Choyamba, mafuta omwe amagwiritsidwa ntchito amasakanizidwa ndi chinyezi, fumbi, mafuta ena opindika ndi ufa wachitsulo wopangidwa ndi mawonekedwe akulu ndi mawonekedwe owoneka bwino. Chachiwiri, Mafuta amalima nthawi pakapita nthawi, ndikupanga acid acids, colloid ndi phula longa zinthu ngati zinthu.
