What is a key regulation for bourbon whiskey production?

In bourbon whiskey production, a key regulation is that the mash bill must contain no less than 51% corn. This specific requirement is fundamental to defining bourbon, as it significantly influences the whiskey’s flavor profile, contributing sweetness and complexity. The high corn content is what differentiates bourbon from other types of whiskey, such as rye or barley malt whiskey, which have different grain compositions.

Bourbon must also be distilled to no more than 160 proof and must be aged in new charred oak barrels. However, the defining factor that classifies a whiskey as bourbon is indeed the grain proportion, particularly the minimum corn percentage. This regulation helps maintain the identity and integrity of bourbon whiskey, ensuring its unique characteristics are preserved for consumers.