Izimbiza zenziwa ngezinto ezisezingeni eliphakeme lokudla, ezingasetshenziselwa ukugcina ukudla, zinobungane bemvelo, ziphinde zisebenze futhi zihlala isikhathi eside. Ikhwalithi yokucubungula ifektri iqinile, futhi ibhokisi lomlomo lemukela ubuchwepheshe obuphakeme obucindezela kakhulu, okwenza umkhiqizo abe yi-airtight futhi ube lula kakhulu ngokugcina ukudla. Izimbiza zingasindi futhi ziphatheka kalula, futhi zingasetshenziswa ukugcina ukudla okufana namakhukhi namakha.