Which type of whiskey requires a mash with no less than 80% corn?

The type of whiskey that requires a mash with no less than 80% corn is corn whiskey. Corn whiskey is defined by its high corn content, which distinguishes it from other types of whiskey. This specific regulation ensures that corn whiskey has a sweeter flavor profile and is often made without aging in charred barrels, allowing for a more direct expression of the corn grain.

In the case of bourbon whiskey, while it must contain at least 51% corn in its mash bill, it does not meet the 80% threshold required for corn whiskey. Tennessee whiskey follows similar regulations to bourbon but includes additional processes like charcoal filtering and also does not specifically mandate 80% corn. Rye whiskey, on the other hand, primarily uses rye grain (at least 51% in its mash), making it distinct from corn-based whiskey. This understanding of grain composition is crucial in differentiating the various types of whiskey on the market.