For the second year in a row, a team of researchers at Belgium’s Ghent University is collecting urine at one of Europe’s largest festivals, Roskilde. The researchers are hoping that by the time next year’s festival rolls around, one of the country’s breweries should have plenty of recycled urine beer to pour out for adventurous drinkers. The first time around, researchers say the goal was to extract nutrients that could be used as fertilizer. According to an article last summer, more than 25,000 liters of urine were collected and the fertilizer that was produced from it provided nourishment to a barley crop. This year, the researchers were after another critical beer ingredient: water.
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