Club-Mate: an energy elixir for Berlin’s youth
Club-Mate: an energy elixir for Berlin’s youth

Energy drink sales are on a caffeine high at $27.5 billion worldwide. But in the depths of Germany's underground scene, naturally caffeinated Club-Mate is the only one to be found in the hands of clubgoers and hackers. How has it won the hearts and minds of the young with barely any advertising?