Gupakira Vacuum nuburyo bwo gupakira bukuraho umwuka muri paki mbere yo gufunga.Ubu buryo bukubiyemo (intoki cyangwa mu buryo bwikora) gushyira ibintu muri paki ya plastiki, gukuramo umwuka imbere no gufunga paki.Shrink firime rimwe na rimwe ikoreshwa kugirango ihuze neza nibirimo.Intego yo gupakira vacuum mubisanzwe ni ugukuramo ogisijeni muri kontineri kugirango wongere ubuzima bwibiryo kandi hamwe nuburyo bworoshye bwo gupakira, kugirango ugabanye ingano yibirimo nibipaki.

Gupakira Vacuum bigabanya umwuka wa ogisijeni wo mu kirere, bikagabanya imikurire ya bagiteri zo mu kirere cyangwa ibihumyo, kandi bikarinda guhinduka kw'ibigize ibintu bihindagurika.Irakoreshwa kandi mububiko bwibiryo byumye mugihe kirekire, nkibinyampeke, imbuto, inyama zikize, foromaje, amafi yanyweye, ikawa, hamwe nimbuto y'ibirayi (crisps).Muburyo bwigihe gito, gupakira vacuum birashobora kandi gukoreshwa mukubika ibiryo bishya, nkimboga, inyama, namazi, kuko bibuza gukura kwa bagiteri.