It appears that it's a misleading headline. The urine, aka ammonia, aka nitrogen, is being used to fertilize some of the grain (barley) used to make the beer.
Heck, the most expensive tea comes from plants fertilized with panda poop.
And the civet-GI-tract-processed cherries for the most expensive coffee.
All good and well. Urine actually is a good fertilizer when used judiciously. As for the rest, I am not a big tea drinker, and I do not drink coffee. Let them have their freedom to drink what they want, as for me, I'll stick with a brew made with real water off a mountain or glacial stream.