Which grain primarily defines the production of rye whiskey?

Rye whiskey is primarily defined by its production using rye grain, which must make up at least 51% of the grain mixture used in the fermentation process. This high rye content is what distinguishes rye whiskey from other types of whiskey, such as bourbon, which is mostly made from corn. Rye is known for imparting a spicy and sometimes fruity flavor profile to the whiskey, which contributes to its unique character. The use of rye as the defining grain not only dictates its classification but also affects its taste, texture, and aroma, setting it apart in the diverse world of whiskey production.