The idea: reinventing the drip coffee system. The new BISTRO comes with a removable water tank, a powerful spiral heating element that brings the water close to a boil and keeps it there while transporting it through a glass pipe over to the coffee filter. There it gets distributed evenly over the ground coffee through an easy to clean shower head thats made of plastic with an inside coating of silicone. Its the silicone with its polished smoothness all through the shower holes that keeps chalk deposits at their absolute lowest and the hot water where it belongs flowing unobstructed onto the ground beans and brewing excellent coffee.