Black lager is the latest launch from controversial brewer BrewDog.

Zeitgeist was the first modern mass-market black lager to be made and sold in the UK, claimed BrewDog MD James Watt. He described the drink as "a forgotten masterpiece", as lager was black when it was first produced 200 years ago.

"We try to take beers full of natural ingredients to the masses — and now we're doing that with lager as it used to be," added Watt. "Zeitgeist seeks to recreate the spirit of an age gone by."