SELF-COOLING CAN

摘要

A self-cooling can (10) which is suitable for cooling 300ml of beverage by 3 0 ~F in a maximum of 3 minutes comprises an internal evaporator (30) and an absorber unit (20) which is fixed typically to the base of the can. Cooling is initiated by providing a vapour path from the evaporator (30) to a desiccant region of the absorber unit (20). Heat is removed from the vapour and/or any heat due to the reaction with the desiccant (24) by heat sink material (26) around the desiccant region (22).