Umatshini wokupakisha i-vacuum unokususa ngokuzenzekelayo umoya kwingxowa yokupakisha, kwaye ugqibezele inkqubo yokutywina emva kokufikelela kwinqanaba le-vacuum elimiselweyo. Ingagcwaliswa yi-witrogen okanye enye irhasi exubeneyo, emva koko igqibe inkqubo yokutywina. Amatshini wokupakisha i-vacuum ahlala esetyenziswa kumzi-mveliso wokutya, kuba emva kokupakishwa kwe-vacuum, ukutya kunokuxhathisa i-oxidation, ukwenzela ukufezekisa injongo yolondolozo lwexesha elide.
Kwindawo echongiweyo, imeko yegesi engezantsi koxinzelelo lubizwa ngokuba yi-vacuum. Inqanaba lokufana kwegesi kwi-vacuum State ibizwa ngokuba yinqanaba le-vacuum, edla ngokuchazwa lixabiso loxinzelelo. Ke ngoko, ukupakisha i-vacuum ayikho ngokupheleleyo, kwaye isidanga sokuphumla kwisitya sokutya esipakishwe kwitekhnoloji yokupakisha i-vacuum ihlala ingama-600-133333.
Umsebenzi ophambili wepakethi ye-vacuum kukususa ioksijini. Kwelinye icala, lenza ukuba i-microorganisms ilahlekelwe indawo yokuhlala, iwathintela ukuphefumla kwabo kunye nokuveliswa kwakhona, kwelinye icala, ukuwohloka kombala okubangelwa kukutshintsha kwe-oxidation.
Kwinyama entsha kunye nezinye iimveliso, inani eliqingqiweyo le-O2, i-N2 kunye ne-CO2 emva kokupakishwa kwentsholongwane, kwaye igcina umbala obomvu wenyama, kwaye wenze ukuba iimveliso zikhuphisane ngakumbi.
