One embodiment: A portable insulated beverage brewing device 10 for liquids and gravity fed method for brewing. A device 10, with lid 14 and vessel 12, may house insulation 52A and 52B, liner reservoir 50A and 50B, and filter 28 to brew hot or cold liquids and contain hot or cold liquids for controlled dispensing 26. A large capacity filter 28 secures inside the vessel 12 accepting brew mixtures for gravity fed brewing method.