As an expert sommelier and brewer, I can confidently say that different vodkas do indeed taste different. While it is true that the primary component of vodka is almost pure ethanol, the subtle nuances in flavor can be attributed to a variety of factors, including the base grain used in the distillation process.
One of the key factors that contribute to the taste of vodka is the choice of grain. Traditionally, vodka has been made from grains such as wheat, rye, barley, corn, or potatoes. Each of these grains imparts its own unique characteristics to the final product. For example, wheat-based vodkas tend to have a smooth and creamy mouthfeel, while rye-based vodkas often exhibit a spicier and more robust flavor profile.
I have personally experienced the differences in taste between vodkas made from different grains. During a tasting session, I had the opportunity to sample vodka made from both wheat and rye. The wheat-based vodka had a slightly sweet and floral aroma, with a clean and soft taste on the palate. On the other hand, the rye-based vodka had a more pronounced and complex flavor, with hints of pepper and spice. The mouthfeel was also noticeably fuller and richer compared to the wheat-based vodka.
In addition to the choice of grain, other factors such as the distillation method and the quality of the water used can also influence the taste of vodka. Some vodkas are distilled multiple times to achieve a purer and smoother flavor, while others may be distilled using traditional pot stills, which can result in a more robust and flavorful spirit.
Furthermore, the source of the water used in the production of vodka can also have an impact on its taste. Water plays a crucial role in diluting the high-proof alcohol and bringing it down to the desired strength. Vodkas made with water sourced from different regions or with distinct mineral compositions can exhibit subtle variations in taste.
To truly appreciate the differences in taste between vodkas, it is best to sample them side by side in a controlled tasting environment. By comparing vodkas made from different grains, distilled using different methods, and sourced from various water supplies, one can truly discern the unique characteristics and flavors that each vodka has to offer.
While vodka is primarily composed of ethanol, the choice of grain used in its production, along with other factors such as distillation method and water source, can significantly impact its taste. Different vodkas do indeed taste different, and it is through exploration and comparison that one can fully appreciate the subtle nuances and complexities that each vodka brings to the glass.