Systems for filling and dispensing free-flowing contents into and out of a container, the container comprising: a top and a bottom, a plurality of vertical walls extending between the bottom and the top, an ice portal disposed in the top, the ice portal having a removable cap for filling an ice chamber with ice, a removable container cap, a tube vertically disposed in the container cap, the tube extending between a beverage bag and a gate valve above the container cap, an air hose disposed in the container cap parallel with the tube, an air bag attached to a bottom end of the air hose, the air bag being adjacent to the beverage bag, such that a volume between the bags and an interior of the plurality of vertical walls is the ice chamber, and a beverage flow portal protruding longitudinally from a side of the gate valve.