THE ‘wizards of sours’ at Edinburgh’s Vault City Brewing have launched a luminous green beer to celebrate St Patrick’s day.

The Portobello-based brewery has created a sweet “Apple Soor” beer that tastes like, you’ve guessed it, Apple Sourz.

The first 250 web orders will receive a free shot glass – perfect for St Patrick’s Day festivities.

The green beer has proven to be popular with the trade. More than 50 bars have already placed orders, including Innis and Gunn in Edinburgh; Shilling Brewery in Glasgow; and Craft Metropolis in London as they ready themselves for the usual St Patrick’s Day shenanigans.

Vault City co-founder Steven Smith-Hay says the beer makes him think of “Dublin bars, clubs and lost youth”.

He said: “The sour sensation is perfect for nights that go on a little too long. We’ve been overwhelmed by the pick-up from bars and nightclubs, and we are proud to be a part of people’s St Patrick’s Day plans.

“We’re fruit fanatics at Vault City, and we’ve made beers showcasing just about every colour in the rainbow. It’s great to have green ticked off the list, and we hope people will think of Ireland, St Patrick’s Day and memories of their favourite nights out when they see it and drink it.”

This beer is the latest in a long line of experimental beers from the Portobello-based brewery.

The Modern Sour Beer people recently launched a beer that tastes like breakfast – a Fruits of the forest triple-stacked breakfast waffle beer.

Every third Sunday, the rapidly growing brewery releases three new beers which always prove popular with craft beer fans. The most recent drop also includes a mouth-watering Guava and Passion fruit beer and a Stevnsbaer Sour Cherry beer made using 999g of cherries from an organic orchard in Denmark per litre.

Steven added: “We’re proud to partner with Frederiksdal Kirsebaervin – a world-class Danish cherry wine producer – to create a beer using the maximum legal amount of fruit we could use.

“We’ve fermented it on our strong golden sour base to deliver an intense and unforgettable flavour. Only twice in our history have we used this much fruit in a beer.”

The limited-edition beers are set to be snapped-up quickly – a recent Iron Brew beer sold 10,000 cans within an hour.