Cov peev txheej ntau lawm ntawm ntau hom kev ziab, granulating, sib xyaw, feeb thiab rho tawm cov cuab yeej mus txog ntau dua 1,000 teev). Lub tshuab nqus tsev tshuab nqus tsev (iav-kab thiab cov hom hlau stainless) muaj cov txiaj ntsig tshwj xeeb.