The spirit produced by column stills was generally more pure and potent, but in the process of distillation it also stripped away more oils and “congeners,” a catch-all term for trace ...

Because column still distillation efficiently strips virtually all extraneous grain compounds out of the liquid, leaving nearly pure alcohol, grain whiskies are frequently less flavorful and ...

Each condenser plate in the rectifier of a column still is considered a distillation. The rectifier column typically holds 12 to 16 plates, although it can be up to two dozen or more, ...

Two stills operate conventionally, producing the first spirit stream through standard double distillation. But it’s what happens next that makes Mortlach unique.