Vertical Vodka is the smoothest vodka one can find as it is the result of four distillations. The first two in stainless (inoxidizable) stills, the latter two distillations in tin-plated copper vats. The copper vats, also known as "pot stills", are used because unlike any other distillation processes, they are able to capture and retain the essence and unique flavors of Vertical Vodka. It is this process that gives Vertical Vodka its grainy character and smoothness; attributes that contribute to its remarkable quality and versatility.