Proper No. Twelve Irish Whiskey is a triple distilled blended Irish whiskey, a style that combines both malt and grain whiskies. The production begins in Ireland, where a blend of fine grain whiskey and single malt Irish whiskey is selected. The grain whiskey is typically distilled in continuous column stills, while the malt whiskey is distilled in traditional copper pot stills. A key characteristic of Irish whiskey, and particularly blends like Proper No. Twelve, is the triple distillation process. This third distillation step is known to produce a smoother and lighter spirit compared to whiskies that are distilled fewer times. Following distillation, the individual whiskies are aged for a minimum of three years in oak barrels, typically ex-bourbon casks. This aging in American oak imparts notes of vanilla, honey, and toasted wood, contributing to the whiskeys smooth and approachable character. Once mature, the master blender carefully marries these aged whiskies in precise proportions to achieve the desired consistent flavor profile for Proper No. Twelve, which is known for its sweet, vanilla, and honeyed notes with a hint of orchard fruit and spice.