Abantu abaninzi bacinga ukuba undoqo wokumisa umkhenkce ulele kwinqanaba le-vacuum sublimation. Ngapha koko, ukukhenkceza kwangaphambili kumisela ubume bekristale yomkhenkce yangaphakathi ngaphakathi kwemathiriyeli, kwaye ubukhulu becala kubeka isiseko sokuthungwa kwemveliso yokugqibela, inkangeleko kunye nokusebenza kokubuyisela amanzi emanzini. Ukuba iiparamitha zangaphambili zokukhenkceza azihambelani neempawu zemathiriyeli, i-sublimation elandelayo ayinako ukwenza iziphene.
Xa iqondo lomkhenkce langaphambili lingekho ngaphantsi ngokwaneleyo, imathiriyeli yangaphakathi ayinakukhenkceka ngokupheleleyo ibe ngumkhenkce oqinileyo. Ulwelo olungakhenkcekiyo oluyinxenye luya kuvelisa into enyibilikayo phantsi kwemeko yokufunxa. Imveliso egqityiweyo iya kuncipha, iwa, ukuqina komphezulu kwenzeka, kunye nesakhiwo esincinci se-porous. Kwimathiriyeli yeswekile ephezulu njengeziqhamo, ukupholisa okuphezulu kulula ukwenzeka. Izinto ezibonakalayo zibukeka ziqinile kumphezulu, ngelixa indawo yangaphakathi igcina i-viscous liquid state, ekunzima ukuyichonga ngamehlo.
Isantya sokukhenkce esikhawuleza kakhulu siyakwenza iikristale zomkhenkce ezincinci ngaphakathi kwemathiriyeli ekrwada. Iikristale ezincinci zomkhenkce aziyi kwenza iitshaneli zepore ezaneleyo emva kokuthotywa kwe-sublimation, okukhokelela kwisantya esicothayo sokubuyisela amanzi emzimbeni kwiimveliso ezigqityiweyo. Ngakolunye uhlangothi, ukulawulwa ngokufanelekileyo komkhenkce ocothayo kuvelisa iikristale ezinkulu zomkhenkce. Emva kwe-sublimation, iipaseji ze-pore ezifanayo zishiywe ngaphakathi kweemveliso, kwaye ukusebenza kokubuyisela kwakhona kuya kuphuculwa kakhulu. Kodwa ukukhenkceka kancinci kancinci kunokubangela umonakalo weseli kunye nokulahleka kwejusi yezinto.
Iindidi ezahlukeneyo zemathiriyeli zifuna iindlela ezahlukeneyo zokukhenkcisa kwangaphambili. Imathiriyeli ekrwada yenyama ifuna ukukhenkcezwa nzulu kwangaphambili ukunqanda ukunyibilika okungaphelelanga. Iziqhamo ezinomthamo weswekile ephezulu kufuneka zithintele ukupholisa okuphezulu. Imifuno emva kwe-blanching kufuneka ihambelane nezinga lokupholisa elifanelekileyo. Abaqhubi kufuneka babeke iqondo lobushushu kunye nexesha lokubamba ngokuhambelana nokufuma kwezinto, umxholo weswekile kunye nobukhulu.
Amashishini kufuneka agqibe uvavanyo lwenkqubo encinci phambi kokuveliswa kobuninzi ngokusesikweni. Qinisekisa imilinganiselo yokukhenkceza kwangaphambili idityaniswe nesiphumo semveliso ekujoliswe kuyo. Inkqubo yokukhenkceza esengqiqweni inokunciphisa ukuwohloka, ukushwabana kunye neengxaki zokutshintsha kombala, ukuphucula inkangeleko, incasa kunye nepropathi yokubuyisela amanzi emzimbeni wokutya okomileyo.
