A Glasgow bar is giving away free beer to celebrate the release of its new product…under one condition.

BrewDog on Argyle Street and Hutcheson Street is giving drinkers the opportunity to ‘trade in’ bad beer in return for a pint of its new headliner beer Lost Lager.

The independent brewery will have a designated ‘bad beer bin’ where visitors can dump their unwanted cans.

BrewDog bosses have taken aim at ‘big breweries’ in their latest campaign, who they say have been ‘peddling mass-produced fizzy yellow swill’.

The amnesty will be held from midday to closing time today in all participating bars.

BrewDog cofounder James Watt said, “Lost Lager is our best lager to date; a crisp, clean pilsner with hints of spice and a zesty lime marmalade character.

“To mark its launch, we wanted to give beer drinkers a chance to taste a lager made with soul and passion, rather than the mass-produced fizzy yellow swill that the big breweries have been peddling for years.

“So, bin your Budweiser, say farewell to Fosters, and get your hands on a pint of Lost Lager.”

“For decades, the craft of lager has been lost and forgotten, bastardised by mega breweries putting profit before flavour.

“But brewed right, lager can pack huge flavour and offer a really exciting style with depth and character.

“We have been working hard on nailing this recipe for months, and we know anyone who has a taste of Lost Lager will never look back.”