Wastewater beer aims to help quench US drought

The beer used water derived from the showers, sinks and washing machines of a San Francisco apartment building containing 550 homes. California law prohibits redirecting the treated water to taps for drinking.But once filtered, the water is transformed from a murky, thick gray to a crystal-clear liquid which will "meet or exceed federal drinking quality standards.

The results surprised Chris Garrett, boss of the Devil's Canyon brewery, which has produced 7,200 cans of beer using water from the building.California law currently prevents the two companies from marketing or selling the beer commercially.The brewer hope that can be changed, and have been distributing cans free of charge during major events such as the recent Climate Week in New York.