What is the name of the process used to produce vodka?

The process used to produce vodka indeed involves filtration and sometimes distillation. Vodka is typically made by fermenting agricultural materials, such as grains or potatoes, to produce alcohol. Following fermentation, distillation is employed to raise the alcohol content. However, what distinguishes vodka production is the subsequent filtration process that is crucial for achieving its characteristic purity and smoothness. This filtration removes impurities and undesirable flavors, resulting in the neutral taste that is a hallmark of high-quality vodka.

While distillation is a fundamental part of vodka production, emphasizing filtration highlights its importance in shaping the final product. Some producers may choose to distill vodka multiple times and then filter it through various materials, further enhancing its clarity and refinement. Thus, the correct answer encapsulates these essential processes that are intrinsic to producing vodka.