Ukupakishwa komkhathi okuguquliwe (Imephu) kukhiqizwa okuhlanganisiwe ngesisekelo sephakheji eligcwele i-vacuum ne-nitrogen. Emhlabeni jikelele, ubuchwepheshe bokupakisha obufezekisa inhloso yokulondolozwa nokulondolozwa ngokushintsha umkhathi okhona (umoya) ozungeze ukudla okubizwa ngokuthi ukudla okuguquliwe. Ikakhulukazi esetshenziselwa ukulondolozwa kokudla. Ukupakishwa kwe-Atmosphere elungisiwe ye-PP kunesicelo esiphelele ekuphaphekeni kwenyama ebolile, ikhofi nemifino. Namuhla, futhi kuya ngokuya kusetshenziswa ekudleni okuqandisiwe futhi okulungiselelwe, ikakhulukazi ukufakwa kwemikhiqizo emisha yengulube eshayisiwe. Umkhathi oguquliwe wegesi ukupakisha i-carbon dioxide, i-nitrogen, umoya-mpilo namanye amagesi akhethekile afana ne-nitrogen dioxide, isibabule dioxide ne-argon. Igesi eyinhloko yokugcina, i-carbon dioxide, ingavimba ukukhula kwe-bacilli iningi nesikhunta; I-oksijini ingavimbela ukukhiqizwa kwamagciwane amaningi anaerobic, ukugcina umbala wenyama nezithelo nemifino kusha. I-nitrogen, igesi ye-inert, ayiphenduli noma idonswe ngokudla. Isetshenziswa njengegesi yokugcwalisa ukuvikela ukuncipha kwamaphakheji okubangelwa ukuphunyula amagesi anjenge-carbon dioxide. Ukudla okuhlukile nezithelo zinezingoma ezahlukene kanye nezilinganiso zamagesi angenaziqubu. Okokukhiya amabhokisi, kubalulekile ukuthi ukuthambekela komoya-mpilo kuhambelana nezinga lokuphefumula.
