Single malt whisky is a premium whisky made from 100% malted barley and produced at a single distillery. It is distilled in pot stills and aged in oak casks, often for many years. Known for its rich, complex flavors, single malt varies widely depending on region, cask type, and aging process — from the peaty and smoky whiskies of Islay to the fruity and floral notes of the Highlands.