Reuse Brew is a classic German lager with a twist its made from recycled wastewater.
Specifically, TUMs Brewery and Beverage Technology department (why didnt I study there?!).
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.
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Reuse Brew is a Bavarian Helles a traditionalGerman pale lager beer.
Stricken by drought, California even approved its first standards forturning sewage into drinking waterlast year.
If you think about it, weve probably all drunk wastewater at some point in our lives.
When you flush, your waste goes down a pipe to a treatment works.
Here it is purified and then discharged into a river or lake.
Eventually this very same water gets pumped back into a well for drinking once more.
Nevertheless, most people dont think of it that way.
The yuck factor of toilet-to-tap has prevented widespread adoption of wastewater recycling.
Demand for water is higher than ever.
But climate change is bringing worse droughts and extreme weather events that are disrupting supply.
In the future, recycling wastewater may become the norm.
It will in fact only serve the beer, not sell it.
Story bySion Geschwindt
Sion is a freelance science and technology reporter, specialising in climate and energy.
