Pisner Beer is being labeled at Norrebro Bryghus in Hedehusene. Picture: Julie Astrid Thomsen/Reuters

Copenhagen – A Danish brewery is drawing on 50 000 litres of urine collected from the largest music festival in Northern Europe in producing a novelty beer aimed at the more adventurous drinker.

The beer named "Pisner" – a word-play combining pilsner with local slang for urine – contains no human waste, but is produced from fields of malting barley fertilised with human urine rather than traditional animal manure or factory-made plant nutrients.

"When the news that we had started brewing the Pisner came out, a lot of people thought we were filtering the urine to put it directly in the beer and we had a good laugh about that," said Henrik Vang, Chief Executive of brewer Norrebro Bryghus.

Pisner Beer is being labeled at Norrebro Bryghus in Hedehusene. Picture: Julie Astrid Thomsen/Reuters

Using human waste as fertiliser on such a scale is a novelty, said Denmark's Agriculture and Food Council, which came up with the idea for what could be the ultimate sustainable hipster beer and has already named the concept "beercycling".

Visitors taste Pisner beer at Norrebro Bryghus in Hedehusene. Picture: Julie Astrid Thomsen/Reuters

"If it had tasted even a bit like urine, I would put it down, but you don't even notice," said Anders Sjögren, who attended Roskilde Music Festival in 2015.

The Pisner beer is stored in a container marked with a sign at Norrebro Bryghus in Hedehusene. Picture: Julie Astrid Thomsen/Reuters

The 50 000 litres collected from that festival resulted in enough malting barley to brew around 60 000 bottles of Pisner beer.