Brand Brewdog: how the self-styled punk brewery went mainstream

A gift for self-promotion has propelled Brewdog from a garage brand to the UK's fastest-growing food and drinks company with a £1bn valuation. But having sold a 22% stake to a US investor, can Brewdog hang on to the 'punk' image that has taken it this far?
One day in 2009, an outraged member of the public posted a letter to Britain’s drinks industry watchdog, the Portman Group, complaining about Brewdog and its 18.2% Tokyo imperial stout. It was irresponsible of the Scottish bre