A cooler cabinet comprises: a storage compartment (130) for food or beverage products (130); a dispensing mechanism (143) for dispensing the food or beverage products (144) from the storage compartment without opening the storage compartment to ambient air; a water-retaining material (120) outside the storage compartment but in contact with it; an air channel (111) in contact with the water-retaining material; and means (114) for moving air through the air channel such that the air increases the rate of evaporation of water from the water-retaining material. It thereby withdraws heat from the water-retaining material and causes cooling of the interior of the cabinet, including the food or beverage products..