A mash bill is a recipe for whiskey. It specifies the proportions of different grains that are used in the fermentation process. The mash bill for Buffalo Trace bourbon is 70% corn, 15% rye, and 15% malted barley. This mash bill gives Buffalo Trace its signature flavor profile, which is characterized by notes of caramel, vanilla, and oak.
The mash bill is one of the most important factors that determines the flavor of a whiskey. Different grains impart different flavors and aromas to the whiskey, and the proportions of each grain in the mash bill can be adjusted to create a wide variety of flavors. The mash bill for Buffalo Trace was developed by Edmund Haynes Taylor, Jr. in the late 1800s, and it has remained unchanged ever since.