Aged Cheddar is also known as sharp cheddar. This has been aged between 9 months and 2 years.
Prior to 1850, nearly all cheese produced in the United States was Cheddar. Cheddar production in Wisconsin began in the mid-1800s and by 1880, more Cheddar was produced in Wisconsin than any other cheese variety. Today it accounts for a large percentage of the cheese made in the state, making Wisconsin the leader in U.S. Cheddar production. Usually golden but also available in white, Cheddar has a rich, nutty flavor that becomes increasingly sharp with age, and a smooth, firm texture that becomes more granular and crumbly with age.