A master blender is an individual who develops specific blended spirits using a combination of spirits with different characteristics. For example, in the Scotch whisky industry, master blenders choose which single malts and grain whiskies to combine to make particular brands of blended whisky. A master blender is not the same thing as a master distiller, although one person may do both jobs at small craft distilleries. As the name suggests, the blender creates blends using spirits from different casks and is responsible for making sure the product remains consistent across different batches, while the distiller is either directly responsible for the mashing and distilling of spirits or simply holds the title as the administrative and marketing figurehead of the company. The term master blender is often associated with the whisky industry, but it is also used for professionals who blend other spirits, such as rum, cognac, brandy, and vodka. History In terms of whisky, the practice of blending distilled whiskies has likely existed in some form for centuries, but the craft of deliberately blending whiskies for flavour purposes began after Aeneas Coffey invented a new type of still to make grain whiskies in 1831. William Sanderson and Andrew Usher are credited with making one of the first whisky blends in the 1860s. Responsibilities Being a master blender involves evaluating barreled spirits with different characteristics, such as age, storage conditions, and cask type, and then choosing the best combination of spirits to achieve a desired final product. The master blender generally has two primary responsibilities: Make sure every batch produced under the same label tastes the same as previous batches Create new appealing blends that deliberately differ from existing labels For some companies, the master blender also serves as the public figurehead for the company and may even have administrative and marketing duties outside of blending responsibilities. Blended whisky Legal definitions for blended whiskies vary. In Scotland, blended whiskies may include grain whiskies and come from numerous distilleries with different malts. In the U.S., the standard is different, and blended whiskeys must contain at least 20 percent straight whiskey combined with neutral spirits or other whiskeys. A blend could be composed of as many as 20 or more different whiskies with different flavour profiles and ages, which makes maintaining product consistency over time a challenging accomplishment for a master blender. It is sometimes necessary to replace whiskies that go into