Mpira wa mabakiteriya a nano, womwe umagwiritsa ntchito mchere wachilengedwe ndi ufa wa quartz ngati zinthu zake, umapangidwa kudzera mu calcinations yotentha kwambiri, yokhala ndi mawonekedwe apamwamba a ma pore olowera, ungapereke malo akuluakulu apadera omangirira mabakiteriya opindulitsa, kuchepetsa bwino ammonia ndi nitrite m'madzi. Zipangizo zosefera za ceramic zopanda mankhwalazi ndi madzi abwino, madzi a m'nyanja ndi dziwe labwino kwambiri losefera.