The Hario Syphon Technica is so marvellously simple and beautiful, you can't possibly keep it to yourself. That's why there's a 3 cup version: it's only fair you share the joy with someone enthusiastic. Inspired by a patent developed by Albert Cohn in 1914, the Hario Syphon Technica is all curvaceous heat resistant glass and elegant height. There's a burner underneath, and once you get that baby lit up, the fun is just beginning. Add your water to the lower bowl and the coffee grounds on top. Place the upper bowl gently on top of the lower bowl and let science take over. Watch the water bubble and boil, stare at the flame, gasp as your coffee seems to defy gravity, ooh and ahh at the beautiful result. Enjoy your exceptional coffee and go back for seconds.