Abantu abaningi bacabanga ukuthi umnyombo wokumisa iqhwa usesiteji se-vacuum sublimation. Eqinisweni, ukubanda kwangaphambi kokubanda kunquma ukwakheka kwekristalu yeqhwa ngaphakathi kwezinto, futhi kubeka kakhulu isisekelo sokuthungwa komkhiqizo wokugcina, ukubukeka nokusebenza kokubuyisela amanzi emzimbeni. Uma amapharamitha wangaphambi kokuqandisa engafani nezici ezibonakalayo, i-sublimation elandelayo ayikwazi ukulungisa izinkinga.
Uma izinga lokushisa langaphambi kokubanda liphansi ngokwanele, izinto zangaphakathi azikwazi ukuqhwa ngokuphelele zibe yiqhwa eliqinile. Ingxenye yoketshezi olungafriziwe luzokhiqiza into encibilikayo ngaphansi kwesimo se-vacuum. Umkhiqizo oqediwe uzoshwabana, ugoqe, ukuqina komhlaba kuvele, kube nesakhiwo esingesihle esinezimbotshana. Okwezinto zikashukela omningi njengezithelo, into epholisa kakhulu kulula ukwenzeka. Izinto ezisetshenziswayo zibukeka ziqinile ebusweni, kuyilapho ingxenye engaphakathi isagcina isimo se-viscous liquid, okunzima ukusibona ngamehlo enyama.
Isivinini sokuqanda esisheshayo sizokwakha amakristalu eqhwa amancane ngaphakathi kwezinto ezingavuthiwe. Amakristalu eqhwa amancane ngeke akhe imigudu eyanele ye-pore ngemva kokufakwa kwe-sublimation, okuholela ekuphuzeni kwejubane lokubuyisela amanzi emzimbeni wemikhiqizo eqediwe. Ngokuphambene, ukuqanda okunensayo okulawulwa kahle kukhiqiza amakristalu eqhwa amakhulu. Ngemuva kwe-sublimation, ama-pore passages amaningi afanayo ashiywa ngaphakathi kwemikhiqizo, futhi ukusebenza kokubuyisela amanzi emzimbeni kuzothuthukiswa kakhulu. Kodwa ukuqhwaza okunensayo ngokweqile kungase kubangele ukulimala kweseli nokulahlekelwa kwejusi yezinto ezibonakalayo.
Izigaba ezahlukahlukene zezinto zidinga amasu ahlukanisiwe wangaphambi kokuqandisa. Inyama eluhlaza idinga ukuqandisa okujulile kwangaphambili ukuze kugwenywe ukuncibilika kancane. Izithelo ezinoshukela omningi zidinga ukugwema umphumela wokupholisa ngokweqile. Imifino ngemuva kwe-blanching kufanele ifane nezinga lokupholisa elifanele. Ama-operators adinga ukusetha i-gradient yezinga lokushisa nokubamba isikhathi ngokuya ngomswakama wezinto ezibonakalayo, okuqukethwe kukashukela nokushuba.
Amabhizinisi kufanele aqedele ukuhlolwa kwenqubo yezinga elincane ngaphambi kokukhiqiza ngobuningi okusemthethweni. Qinisekisa amapharamitha angaphambi kokuqandisa ahlanganiswe nomthelela womkhiqizo oqondiwe. Inqubo enengqondo yangaphambi kokuqandisa inganciphisa ukuwohloka, ukushwabana kanye nezinkinga zokushintsha umbala, ukuthuthukisa ukubukeka, ukunambitheka kanye nempahla yokubuyisela amanzi emzimbeni wokudla okomisiwe.
