Khalase e futhumetseng kapa khalase e thatafalitsoeng, e entsoe ka ho futhumatsa khalase e kentsoeng ka mocheso o ka bang 650 °C(1200°F) ebe e pholile ka potlako ka moea.Ts'ebetso ena e notlela bokaholimo ba khalase ka har'a khatello e eketsang matla a khalase.Ha khalase ena e halefile ka ho feletseng e batla e le matla ka makhetlo a mane ho feta sengoathoana sa khalase e kentsoeng.
Habohlokoa le ho feta, ha khalefo e robeha e ikarola likotoana tse nyane tse nkoang e le mokhoa o sireletsehileng oa ho phomola.