I-vacuum yangaphambi kokupholisa yezithelo nemifino ingasusa ngokushesha nangokulinganayo ukushisa kwensimu okulethwa ukukha, kunciphise ukuphefumula kwezithelo nemifino, ngaleyo ndlela kwelule isikhathi sokugcinwa okusha kwezithelo nemifino, kulondoloze ubusha bezithelo nemifino, futhi kuthuthukise izinga lokugcinwa okusha.
I-vacuum pre-cooling iwuhlelo lokupholisa olushesha kakhulu futhi olungabizi kakhulu lwemifino, izithelo, izimbali, njll. Ubuchwepheshe be-vacuum bangaphambi kokupholisa bunganweba isikhathi seshalofu lemikhiqizo, bunciphise izinga lokubola, futhi buthuthukise kakhulu izinga lemikhiqizo, futhi manje abalimi abaningi bemifino nezithelo bakhetha ama-vacuum cooler.