High rye mash bill. Bonded. Bottled in bond in accordance with Old Grand-Dad himself (and the US Government). OGD Bonded is distilled under the requirements of the century-old Bottled-in-Bond Act - created to ensure the integrity of bourbon. OGD Bonded Bourbon is the product of one distillery and one distiller in a single season, barreled for at least 4 years and bottled at exactly 100 proof. 100 proof. 50% alc/vol. Bottled by the Old Grand-Dad Distillery Company Clearmont, KY.