What are the only allowed additives in Scotch whiskey?

The production of Scotch whisky is strictly regulated by law, ensuring its quality and authenticity. The only accepted additives in Scotch whisky are water and caramel coloring. Water is added at various stages, particularly during the dilution process, to achieve the desired alcohol content and to help in the production process. Caramel coloring, specifically known as E150a, is used to achieve a consistent color in the final product, especially since the aging process can lead to variations in the hue of the whisky.

Other options suggest additives such as sugar, spices, and flavorings, which are not permitted in the production of Scotch whisky. The regulations emphasize purity and traditional methods, allowing only these two specific additives to maintain the authenticity of the spirit. This adherence to strict guidelines helps uphold the reputation of Scotch whisky around the world.