Do all wine and vodka or alcoholic products need a kosher certification if not then how would it work what yes can I consume or what not???
There are many different types of beverages. I would advise you to look in R’ Blumenkrantz’s Pesach Digest 2017 chapter 36 for an explanation of the various types and their various issues. The Chicago Rabbinical Council also has a liquor list. I am also attaching an abridged list of the Star-k of what needs supervision and what doesn’t. Star-k Liquor List updated 9. 2016