Final answer:
Bourbon is a type of whiskey made from a grain mash containing at least 51% corn. It is fermented, distilled, and aged in charred oak barrels.
Step-by-step explanation:
Bourbon is a type of whiskey that is made primarily from a grain mash containing at least 51% corn. The remaining percentage can be made up of other grains such as barley, rye, or wheat. The mash is fermented, distilled, and then aged in charred oak barrels for a specific period of time to give bourbon its unique flavor.