Umklamo wokuzivala, ukuncinza ngobumnene, ungavalwa, uvalwe kakhulu, akukho ukuvuza Idizayini yesikhwama esobala, kulula ukuhlukanisa ukudla esikhwameni, kulula ukuthwala ukudla okufunayo
Ukupakisha i-vacuum kuyindlela yokupakisha esusa umoya ephaketheni ngaphambi kokuvala.Le ndlela ihilela (ngesandla noma ngokuzenzakalelayo) ukubeka izinto ephaketheni lefilimu yepulasitiki, ukukhipha umoya ngaphakathi, nokuvala iphakheji.Inhloso yokupakisha i-vacuum ngokuvamile ukususa umoya-mpilo esitsheni ukuze kunwetshwe isikhathi seshelufu sokudla futhi, ngamafomu ephakheji avumelana nezimo, ukunciphisa umthamo wokuqukethwe nephakheji.
Ukupakisha i-vacuum kunciphisa umoya-mpilo osemkhathini, kukhawulela ukukhula kwebhaktheriya ye-aerobic noma isikhunta, futhi kuvimbele ukuhwamuka kwezingxenye ezishintshashintshayo.Ibuye isetshenziselwe ukugcina ukudla okomile isikhathi eside, okufana nokusanhlamvu, amantongomane, inyama ephelisiwe, ushizi, inhlanzi ebhenywayo, ikhofi, nama-chips amazambane (ama-crisps).Esikhathini esifushane, ukupakisha i-vacuum kungasetshenziswa futhi ukugcina ukudla okusha, njengemifino, inyama, noketshezi, ngoba kuvimbela ukukhula kwamagciwane.
