Mubikorwa byo gutanga ibiryo n'ibinyobwa, ubwinshi bwibikoresho fatizo byamazi, harimo umutobe, umutobe wimbuto, ibikomoka ku mata, inzoga, nibindi, bigomba gutunganywa.Ibihagarikwa byahagaritswe, imyanda, hamwe na mikorobe ikunze kuba mubikoresho byamazi.Niba kuyungurura neza bidakozwe burundu, bizagira ingaruka kumiterere nuburyohe bwibicuruzwa.Ibintu byo kuyungurura birashobora gukuraho neza ibyo byanduye kandi bikanemeza neza ko ibintu byamazi meza.