Which grain is most commonly used in vodka production?

Wheat is the most commonly used grain in vodka production due to its neutral flavor profile, which helps create a smooth and clean spirit that is characteristic of vodka. Wheat vodka tends to have a slightly sweeter taste and a lighter mouthfeel compared to other grains. It is often preferred in the distillation process because it yields a high alcohol content and produces fewer congeners, contributing to the drink's clarity and purity.

While barley, corn, and rye can also be used in vodka production, they each impart distinct flavors and characteristics that make them less typical for standard vodka. Barley is more commonly associated with whisky production, corn is primarily used for bourbons, and rye gives a spicier flavor profile. Thus, wheat stands out as the grain that aligns best with the traditional expectations of vodka.