Vodka is a white spirit distilled from a variety of substances including rye, wheat, potatoes, molasses, and beets. Most Polish vodkas are made from rye, while Russian vodkas are usually made of wheat. Vodka is usually made in column stills and chill filtered, and often carbon filtered or even redistilled past reaching optimal proof. This results in a highly-neutral spirit that is attractive to the mass market but not very interesting from a craft spirits and cocktails perspective. American vodkas are technically neutral spirit, meaning that it MUST be distilled to a super-high proof and then watered down.