Okuthethwa yiyo yonke le nto naku: Isibindi siyeyona fecthri yeekhemikhali zomzimba. Ithatha izakhamzimba ezikwi-gut, ize izilungiselele okufunwa ngumzimba. Isenokugcina intsalela yezakha-mzimba, okanye ikhulule izakhamzimba ezithe chatha nezikuvimba. Isenokutshintsha ukwenziwa kweekhemikhali zezakha mzimba ezininzi. Ngale ndlela yenza okokuba kube lula ukuba iintlobo-ntlobo zokutya zibe zinokusileka.