This famous beaker-like vessel changed America's way of thinking about coffee-making. Invented by a chemist, it's been lauded for its simple, sleek design and its chemically correct method of brewing. Its hourglass-shaped flask is made entirely of glass, a chemically inert material that does not absorb odors or chemical residues. To brew, put coffee into the Chemex bonded filter (sold separately) and add hot water to make up to eight cups of coffee. Mouth-blown from heat-resistant glass with a wooden handle. Dishwasher- and microwave-safe. Set of 100 filters sold separately.