So, vodka is basically a neutral-tasting spirit that's made from grains or potatoes, and it's usually distilled multiple times to remove any impurities. But, just like how coffee can have different roast levels, vodka can have different flavor profiles depending on the ingredients and production methods used.
When it comes to making vanilla extract, you want a vodka that's going to complement the flavor of the vanilla beans without overpowering them. Think of it like baking a cake - you want the right balance of ingredients to get the perfect flavor and texture.