Makers Mark double distills its whisky -- once in an all copper column still to produce what we call low wine, and again in a copper pot still to produce high wine. This added step removes impurities and produces a more refined sipping whisky. Our low wine is distilled off at 120 proof, while our high wine is 130 proof.
We believe that this is the lowest distillation proof in the industry. We continue this more expensive practice because it preserves our mellow grain characteristics.