In establishments where managers take regular inventories, bartenders sometimes add water to liquor bottles to cover up pilferage and free drinks. It's a good idea to spot check your establishment's bottles to keep from being fooled by devious employees.

This popular 11" hydrometer gives management the ability to quickly test the alcohol volume in distilled spirits.

Reads from 0% - 100% alcohol by volume and also by proof. Alcohol volume is exactly half of the proof. An 80 proof liquor should be 40% alcohol by volume.

Comes with instructions and is easy to use. Click here to view.

We recommend purchasing a Hydrometer Test Jar since you can not use this hydrometer inside of a bottle. A tall, straight-sided graduate is required so the hydrometer can sink straight down into a sampling of the distilled spirit. The test jar keeps the hydrometer upright and the alcohol volume readings are easily taken looking through the side of the test jar. Scroll down this page to see the plastic and glass test jars we have available.