The luxury of a French Press combined with a stylish yet rugged design. Patented double filtration system. Double-walled 188 stainless steel and vacuum-sealed for optimum heat retention. Planetary Design, formerly Porter Products, has revolutionized the century old art of brewing coffee and tea via French Press. The tabletop presses, constructed of 188 marine grade stainless steel are incredibly durable and equally impressive in their ability to retain heat for extended periods of time. The patented double filtration system, modeled after a hydraulic cylinder, ensures that grounds will not pass through, creating the perfect brew of coffee or tea. Simply, pour hot water over coffee grounds or loose leaf tea, let steep, push stopper down and enjoy the best brew around.