If you are looking for a coffee brewing method where your brew comes in contact with little more than glass, Chemex Coffee Makers are what we recommend! No plastics, no metals, just glass, and the paper filters made from natural fibers. Coffee brewing doesnt get much purer than this! Chemex has been making their infamous brewers since 1941, and have won multiple awards for best design. Their brewers has even earned their way into multiple museums including The Museum of Modern Art, The Smithsonian, The Philadelphia Museum, and The Corning Glass Museum! The high quality, non-porous, heat resistent glass used in all Chemex Coffeemakers is as inert as materials get, as it absorbs no odors or residues, ensuring a clean cup. Their simple yet elegant design is what has led to their success, even in todays modern world!