About

Harviestoun Ola Dubh 21 Year Special Reserve is a Scottish Porter aged in ex-Highland Park 21 Year casks. The name means 'black oil' in Gaelic—an apt description for this dark, layered ale. Harviestoun creates it by maturing their Old Engine Oil base recipe (boosted to 10.5% ABV) for up to six months in Orkney whisky barrels, then bottling at 8%. The beer delivers a full, rich character built on dark roasted malts and coffee notes. The Highland Park casks contribute whisky warmth and subtle peat smoke without dominating the palate. This is a bold statement of Scottish brewing ambition, where porter tradition meets Scotch whisky heritage.