Abstract: A beverage container having a beverage compartment and an ice compartment separated by a removable seal which, when removed, allows the ice and beverage to mix thereby cooling the beverage. The removable seal prevents premature mixing of the beverage and the ice and allows the container to be stored warm, with water in the ice compartment, indefinitely. Prior to use, the container is placed in a dual-temperature environment that freezes the water in the ice compartment but doesn't freeze the beverage. Freezing of the beverage is prevented by an air gap between the beverage and the ice that acts as a thermal barrier. An ice anchor and an air gap in the ice compartment reduce the melting rate of the ice by suspending the ice within the ice compartment, out of contact with the melt water and surrounded by an insulating layer of air.