BrewDog’s new owner has urged drinkers to give the ailing brand “a second chance” as it invests more than £50m in improving the company’s beers, pubs and working conditions.

The US cannabis and drinks company Tilray bought BrewDog for £33m in March this year, after the company collapsed into administration following five years of losses and a series of controversies relating to the treatment of workers under the founder James Watt.