The project „Public Brewing“ is an interactive Media Facade on the building of the Uerige Home Brewery in Düsseldorf. In this project the brewing process – from crushing of the malt to the fermentation and on through to the bottling – is visualized by means of a rear projection onto the windows of the facade. At a control desk located in front of the building the visitor can steer the process by operating buttons, pumps and cranks and thereby brew his own beer. This appears, after it has been virtually bottled, as a real bottle at the control desk and can be taken home.