Abstract: Disclosed are cooling jackets for containers for beverages and other liquids. Such a jacket comprises a porous matrix as an element of the jacket body to effect the cooling of the jacket by pervaporation of a liquid contained within the jacket body. The jacket therefore cools a liquid within a container maintained in direct contact with the jacket.
Abstract: Disclosed are cooling tubes or straws for beverages and other liquids. The tubes or straws comprise a porous matrix to effect the cooling a liquid contained within by pervaporation.