What is the difference between bourbon and whiskey, and how does the aging process affect the flavor profile of bourbon?

Bourbon is a type of whiskey that is made primarily from corn, while whiskey can be made from a variety of grains. The aging process of bourbon in charred oak barrels gives it a distinct flavor profile, with notes of caramel, vanilla, and oak developing over time. This process also allows the bourbon to mellow and become smoother as it ages.