Abstract: A beverage container includes a primary reservoir adapted to hold a first fluid and a storage compartment located external to the primary reservoir. The primary reservoir is accessible through an opening for filling the primary reservoir with the first fluid and for consuming the first fluid. The beverage container further includes a coupler attached to a wall that defines at least a portion of the storage compartment. The coupler is adapted to mate with a portion of a peripheral container so that the peripheral container is securely housed in the storage compartment. The peripheral container holds a second fluid having a composition that is different from a composition of the first fluid.

Abstract: A beverage container includes a primary reservoir adapted to hold a first fluid and a storage compartment located external to the primary reservoir. The primary reservoir is accessible through an opening for filling the primary reservoir with the first fluid and for consuming the first fluid. The beverage container further includes a coupler attached to a wall that defines at least a portion of the storage compartment. The coupler is adapted to mate with a portion of a peripheral container so that the peripheral container is securely housed in the storage compartment. The peripheral container holds a second fluid having a composition that is different from a composition of the first fluid.

Abstract: A beverage container includes a first chamber having a bottom wall with a hole extending therethrough and adapted to hold a first liquid and a second chamber that mates with the first chamber and is adapted to hold a second liquid. A dispensing mechanism that dispenses at least a portion of the second liquid into the first chamber through the at least one hole includes a tube, a plunger located within the tube and a first check valve. The plunger is movable between a first position and a second position to fill the tube with at least a portion of the second liquid and is movable between the second position and the first position to expel the second liquid into the first chamber. The first check valve prevents the second liquid from entering back into the second chamber when the plunger is moved back into the first position.