Why Can't You Distill Liquor That's 100 Percent Pure Alcohol?Esther Inglis-Arkell5/04/15 1:41pm949EditPromoteDismissUndismissHideGo to permalinkThe highest proof alcohol you can buy is Everclear, at 190 proof. That’s nothing! Let’s get together and make an alcohol that’s 200 proof! Except we can’t possibly do that. There’s a physical limit to how pure alcohol can actually get, and we’ll tell you why.