A pre-packaged liquid container usable in a device for administering liquid has a container upper portion containing a basic liquid, with a container upper wall extending from a first container upper portion base to a second container upper portion base having a mechanically breakable container upper portion membrane, the container upper wall having a container upper portion thread, and a container lower portion containing a powder soluble in the basic liquid, with a container lower wall extending from a first container lower portion base to a second container lower portion base. The container lower wall has a container lower portion thread. The first container lower portion base has a mechanically breakable container lower portion membrane. Coupling and closing means of the container upper and lower portions have a first thread engaging with the container upper portion thread, a second thread engaging with the container lower portion thread, and breaking means for breaking the container lower and upper portion membranes.

Beverage systems and kits and methods of using the same. A beverage system of the present disclosure includes a container configured to retain a beverage, the container having an outer wall and an internal threaded section above a non-threaded inner wall section; a threaded gasket having a threaded portion and an outer curved profile, the threaded portion configured to engage the internal threaded section of the container when coupled thereto; and a lid having an extension portion extending from a cover portion, the extension portion having a seal positioned thereon, the seal configured to engage the non-threaded inner wall section of the container when coupled thereto.