The makers of Signatory Scotch Whisky refer to it as a “single, single, single malt” for the single distillery, single distillation and single cask used in production. Signatory single malts are sourced from the most prominent distilleries across Scotland. As an independent bottler, Signatory is able to buy surplus casks of malts not sold to consumers, bottling them under the Signatory name. Though it sounds simple, discerning which casks to bottle while ensuring the highest quality of single malt Scotch whisky is a meticulous endeavor.