I can only add to this that you never drink vodka for taste. You drink it for the effects. The only two qualities it must be judged on is 1) how quickly and easily it goes down 2) how little hangover it results in. The less you have in vodka the better it is on both points. Hence, comrade Igor's advice is a sound one. Even if it sounds a bit alien.
is hangover really depending on impurities? Ethanol it self goes through a poisonous stage when broken down in our digestive system - isn‘t that what‘s causing hangover?
I can only add to this that you never drink vodka for taste. You drink it for the effects. The only two qualities it must be judged on is 1) how quickly and easily it goes down 2) how little hangover it results in. The less you have in vodka the better it is on both points. Hence, comrade Igor's advice is a sound one. Even if it sounds a bit alien.