The syphon is a time-tested brewer that blends theatricality with unparalleled quality. Two glass chambers are suspended on a tabletop stand, filled with water, and heated by an open flame. The expansion of hot air in the lower chamber forces water upwards and keeps it "floating" above. Coffee is then added to the top chamber, where it’s steeped in hot water for a relatively short amount of time until it’s filtered on the way down. When the flame is extinguished, the cooling air in the lower chamber allows the coffee to fall below. Complete immersion of the grounds results in a complex and intensely flavorful cup, while the cloth filter keeps it smooth and free from undesirable sediment.