The most notable kind of alcohol made from potatoes is vodka. Though sometimes considered an inferior base ingredient, potato-based spirits like vodka still exist and are great. Vodkas are traditionally distilled from fermented grains and potatoes. This is because potatoes are rich in starch, which can be easily converted to sugar and fermented to become alcohol. However, there are some other types of spirits that can be produced from potatoes like some types of gin and beer, though there are only a handful of brands available that go through this fermentation process.

Source: Liquor Laboratory