A matsayin kari ga injin mai jujjuyawa mai saurin juyawa na iya cika inji, injin cika gwangwani na layi yana iya cika nau'ikan samfura iri-iri kamar: giya, carbonated / abin sha mai laushi, ruwan 'ya'yan itace, abubuwan sha na wasanni da teas.Saboda ƙananan sawun sa, samfuran cika masu sassauƙa, mai sauri da dacewa na iya sauyawa, don haka ya fi shahara tare da ƙananan masu amfani.Alal misali, yin amfani da gwangwani mai layi don cika giya na sana'a karamin inji ne, amma kuma yana da ayyuka daban-daban (tankin ajiya, kurkura, CO2 tsaftacewa, cikawa, murfi, rufewa).Waɗannan ayyukan ba su da bambanci da na injina mai jujjuyawa.Har ila yau, akwai ɗan gajeren lokacin zagayowar daga cikawar giya, don rataya murfin, rufewar birgima, wanda ke haɓaka haɓakar iskar oxygen a cikin tsarin cike giyar, don tabbatar da cewa giya ya fi sabo kuma ba mai oxidized ba.