In 2015, Roskilde Festival, Denmark’s largest music festival, launched the latest of its many eco-friendly initiatives. ‘From piss to Pilsner’ aimed to collect 25,000 litres of urine from festivalgoers that could be recycled (‘beercycled’) from a pale yellow liquid into another, more desirable, pale yellow liquid: a refreshing fizzy lager.
Now, two years later, the plan has borne fruit, with a Danish microbrewery making use of double that – 50,000l, or 10,000 gallons – to brew a beer it’s dubbed (what else?) Pisner.

Source: www.iq-mag.net

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