Malt whisky is a type of whisky made primarily from malted barley. It is produced in pot stills and must be aged in wooden casks for a minimum of three years. The flavor profile of malt whisky can vary widely, influenced by factors such as the region of production, the type of cask used, and the distillation process. There are two main categories of malt whisky: single malt, which comes from one distillery, and blended malt, which combines malts from different distilleries. Regions like Scotland and Ireland are renowned for their malt whisky production, each offering unique characteristics and styles.