• 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 algae (Algae amatha kupeza gwero la chakudya chafumbi ndikukhazikika m'madzi a dziwe lakuda) ndikuletsa kukomoka.