Grain whiskey is a type of whiskey made primarily from grains other than malted barley, such as corn, wheat, or rye. It is typically produced in large quantities using continuous column stills, which allows for a more efficient distillation process. This results in a lighter and smoother spirit compared to malt whiskey. Grain whiskey is often used in blended whiskeys, where it complements the flavors of malt whiskey. It is a key component in many popular brands, contributing to the overall taste and character of the final product. Notable examples include Scotch whisky and Irish whiskey.