A disposable cartridge and a method for brewing tea while high temperature liquid is passed through the tea includes a receptacle formed of liquid-permeable sheet material and defining a cavity for receiving tea. A quantity of tea is provided in a portion of the cavity. An inflatable cover, also formed...http://www.google.com/patents/US4983410?utm_source=gb-gplus-sharePatent US4983410 - Disposable expandable tea cartridge
