More Bourbon Facts! Legally, bourbon can't be classified as a bourbon if it is distilled over 160 proof, so we check the proof throughout the distillation process with a HYDROMETER. #hydrometer #bourbonfacts #bourbonproof #bourbontiktok #distillerylife #craftdistillery #rocktowndistillery #bourbontok #bourbon #distillery #madeinarkansas #arkansasmade #distillation #distillationprocess #proofcheck