This is my new coffee maker. A Vintage Art Deco Sunbeam Coffeemaster Coffee Maker Model C30-A. The Water heats up in the bottom pot, creating a high pressure that pushes the water up into the upper chamber where the coffee is. Once all the water is out of the bottom, the heat is reduced and as the water vapor and air cool in the bottom, it condenses and creates a vacuum, which sucks the coffee back down.
