Marufi shine hanyar marufi wanda ke cire iska daga kunshin kafin rufewa.Wannan hanyar ta ƙunshi (da hannu ko ta atomatik) sanya abubuwa a cikin kunshin fim ɗin filastik, cire iska daga ciki, da rufe kunshin.Manufar tattara kayan injin shine yawanci don cire iskar oxygen daga akwati don tsawaita rayuwar abinci kuma, tare da sassauƙan fakitin fakiti, don rage ƙarar abun ciki da fakitin.
Takaddun injin yana rage iskar oxygen na yanayi, yana iyakance haɓakar ƙwayoyin cuta ko fungi, da hana fitar da abubuwan da ba su da ƙarfi.Hakanan ana amfani da ita don adana busassun abinci na dogon lokaci, kamar hatsi, goro, nama mai warkewa, cuku, kyafaffen kifi, kofi, da guntun dankalin turawa (crisps).A kan ɗan gajeren lokaci, ana kuma iya amfani da tattara kayan abinci don adana sabbin abinci, kamar kayan lambu, nama, da ruwa, saboda yana hana haɓakar ƙwayoyin cuta.
