A plug for a pouch assembly, where the plug includes a top wall, an inner axial skirt and an outer axial skirt. The inner axial skirt depends from the top wall in a direction opposite the top wall. The inner axial skirt includes an inner surface, an outer surface, an upper end and a lower end. The outer axial skirt includes an inner surface and an outer surface, an upper end proximate the top wall and a lower end spaced apart therefrom. A seal bead is positioned on the inner surface of the outer axial skirt spaced apart from the upper end. The seal bead extends inwardly toward the inner axial skirt. The plug is attachable to the spout of the pouch. The seal bead is structurally configured to hermetically seal against the spout, while precluding sealed engagement between the inner axial skirt and the spout.