which worked with Perthshire's Tullibardine Distillery on the project. Almost 750,000 tonnes of draff and two billion litres of pot ale are produced by the malt whisky industry in Scotland every year.

The story goes that a single cask of whisky was discovered maturing in the depths of a warehouse at Tullibardine in the 1970s. The assumption was that this was a cask of Tullibardine whisky that ...