A bag in box packaging comprising an outer box, an inner bag and a tray member. The outer box includes an opening at the lower end of the front wall and onto the bottom wall. A pair of opposing slits extend along the lower edge on opposing sides of the opening thereat. The spout and/or the tap extend through an opening in the base so that the tap and the inner bag are on opposite sides of the base. A pair of opposing channels are defined between the respective flange and the dispensing wall interfacing surface of the tray. The tray member can be slid into position by extending the front wall between the respective flange and the dispensing wall interfacing surface and into the respective opposing channels defined thereby, to, in turn, secure the tray to the outer box.