Proof and Tralle Hydrometer
Want to know exactly how strong your spirits are coming off the still? This proof and Tralle hydrometer gives you a clear, dependable reading every time you run.
It's a simple tool, but around here we'd never run a batch without one. Float it in your sample and you'll know your proof in seconds.
- Accurate proof and Tralle scale
- Easy to read on every run
- A staple in any distiller's kit
- Free U.S. shipping
✓ Solid lead-free copper · ✓ Ships free anywhere in the U.S. · ✓ Backed by our 2-year guarantee
Good to know
Watching distillate drip from the condenser is the alchemy. A proof and Tralle hydrometer is the science that tells you what you actually made. Float it in a sample and you'll know the strength in seconds, with a clear, dependable reading every run. It's a simple tool, but we'd never run a batch without one.
How do you read a proof and Tralle hydrometer?
Pour a sample into a tall test jar, lower the hydrometer in gently, and give it a light spin so it floats free. Read the scale where the surface of the liquid meets the stem. The Tralle scale shows alcohol by volume as a percentage, and the proof scale shows US proof, which is twice that number.
- Mind the temperature: hydrometers are calibrated at a set temperature, and readings shift as a sample warms or cools. Let your sample settle before reading, and contact us if you'd like to know the calibration point for this one.
- Use it for cuts: if you log the proof each time you change receivers, you'll see how strength falls through a run, which helps you decide when to switch jars.
- Handle with care: it's a precision instrument. Rinse it after use, dry it, and store it where it can't roll off the bench.
- Pair it up: our graduated plastic test jar is made for floating a hydrometer straight and true.
Whether you're testing fuel alcohol or spirits made under federal TTB permits, knowing your proof turns a guess into a measurement.