The Caledonian Distillery, affectionately known as 'the Cally', was built in 1855 as the Edinburgh Distillery, making it one of Scotland's most historically significant grain whisky producers. Located in the Lowland region, it grew to become one of the largest distilleries in all of Scotland, playing a central role in the country's whisky industry for well over a century. The distillery eventually became part of the Diageo portfolio, linking it to one of the world's most influential spirits conglomerates. As a grain whisky operation, Caledonian was instrumental in supplying the blending industry with the backbone it needed to create some of Scotland's most iconic blended Scotch whiskies. Grain whisky from the Cally is known for its lighter, smoother character — a hallmark of Lowland-style production — which made it an indispensable component for blenders and independent bottlers alike. Today, single cask expressions sourced from the Caledonian are highly sought after by collectors and enthusiasts, offering a rare glimpse into the distillery's storied legacy.