An incredible vodka from Starka, this has been aged for 50 years. Polmos is the sole authorized Polish producer of Starka. Polish Spirit Monopoly. The traditional vodka is distilled from natural rye spirit that is distilled twice and no rectification. It is aged in oak barrels with small amounts of apple and lime leaves to add a whisper of flavor to this dry style vodka. Similar to the process of making whiskey.. Polmos Szczecin ages its Starka from 10 to 50 years. An important point that makes Polish Starka unique within the market is that its natural color is from long reaction to the oak, and not from additives. The alcohol content is 50%.