The first was launched in September and the second in January.

Among the seven expressions that feature in this third release are   Caol Ila, Glenkinchie, Glen Ord, Royal Lochnagar, Dailuaine, Inchgower, and Mannochmore.

Each of the whiskies is drawn from one single oak cask, picked after a careful examination of distillery stocks, and bottled at its natural cask strength.

The collection encompasses all 27 of Diageo’s single malt scotch whiskies and they are labelled The Managers' Choice because of the way the whiskies are selected.

The releases are being staged in four batches over several months, starting in September 2009 and concluding in May 2010.

Depending on the size of the cask and the rate of evaporation over the years since it was filled, the volume of bottles obtained from the chosen casks can vary between approximately 640 and as little as 200.

Classic Malts Selection spokesperson Nick Morgan said: “This series has provoked a great deal of interest and comment. Many serious buyers, including those who know and enjoy our malt whiskies in their more familiar bottlings, are fascinated by the unique and unexpected insights and flavours that The Managers’ Choice offers. All of the whiskies intrigue and delight: some are simply outstanding."

Full details, including tasting notes, are displayed on the Classic Malts Selection website www.malts.com. Prices range from £200-£300.