From Batch 3 of their Virgin Oak Series,Glenallachie present a rare single malt which underwent additional maturation in casks made of Scottish Sessile Oak (Quercus Petrae), sourced from the Atlantic coast. Scottish oak is incredibly challenging to work with at all stages of production: growing, milling and coopering. Its rarity, costliness and tendency to knot mean it is scarcely used for whisky maturation.