How to Proof Down Spirits

A practical overview of theoretical dilution using conservation of absolute alcohol.

Working method

This guide uses the same verified calculation engine as the corresponding Stillbench bench tool. Keep units consistent, use measured values, and treat the result as a production-planning estimate.

Verify before production

Temperature, instrument calibration, alcohol-volume contraction, local reporting rules, and operating conditions can affect production measurements. Verify the result using the procedures appropriate to your operation.