• Burashi la dziwe lingalepheretse sikelo(madzi am'mayiwe amamwa tinthu ting'onoting'ono ta mpweya wakunja, kenako n'kukhazikika pansi, kenako n'kupanga filimu ya sikelo)/ kuteteza madontho(Madontho a m'dziwe nthawi zambiri amakhala osakaniza spores, mabakiteriya, dothi, mchere. , mafuta kapena zinthu ting'onoting'ono tachitsulo mu dziwe)/ kuteteza ndere(Algae amatha kupeza gwero lokonzeka la chakudya chafumbi ndikukhazikitsa mokhazikika m'madzi a dziwe lakuda) ndikuletsa kukomoka.