Ok, stupid question. What makes vodka ........... Vodka? I mean, with most alcohols the ingredients define the drink. Whiskey, scotch, bourbon, tequila, brandy ............. all pretty much (in my experience) use the same ingredients. Quality may vary, but a grape is still a grape, barley is still barley. I've seen so many different vodkas at the store ............ vodka made from grapes, vodka made from wheat, vodka made from almost everything I can imagine. I guess I'm just out of touch, or misinformed when I was younger. I always think of potatos when I think of vodka.