July 19, 2024
This German beer is made from recycled wastewater

Reuse Brew is a classic German lager with a twist — it’s made from recycled wastewater. 

The beer is the result of a tie-up between the south German city of Weissenburg, American water tech company Xylem, and the Technical University of Munich (TUM). Specifically, TUM’s Brewery and Beverage Technology department (why didn’t I study there?!). 

While the idea of a sewage brew might be hard to swallow, Xylem ensures us that all the bad stuff is filtered out before the malt, hops, and yeast are added. 

First a machine injects ozone into the wastewater. Then the sludge is blasted by UV radiation and bombed with hydrogen peroxide pellets. Finally, it gets squeezed through various carbon and nano filters.

This process removes 99.999% of all chemicals and contaminants. The end result is clean, fresh water that you can use to drink, water your plants, or…make beer.