title_body: An alternative to Vodka to pair with caviar
upvoted_answer: Your main criterion, especially if you are serving sturgeon caviar, should be something to freshen the palate without leaving a strong aftertaste. 
  
  A brut champagne goes exceptionally well. If keeping the Russian theme is important and you have a good eastern European shop at hand, you could try to get a Russian or Ukrainian Шампанское. Be aware that many Russian and Ukrainian wines tend to be much sweeter than a western European would expect; make sure it is Брют / Brut, and ideally try a bottle before serving it.