Proof and Tralle Hydrometer with 12' Glass Test Jar

Here's a fine quality made in France glass proof and tralle hydrometer along with a Green base glass Test jar to measure the percentage of alcohol in distilled alcohol. This is used for unsweetened distilled spirits and is not for beer and wine (see my other items, you need the triple scale for your beer, wine, wort, mash or sugar wash!). comes in a square plastic case with Instructions. This scale will determine the direct percentage of alcohol in liquids with a specific gravity less than zero. Just put a sample of unsweetened liquid containing alcohol in the Test jar and float the hydrometer in the liquid. The hydrometer and Test jar are blown glass and fragile so be careful not to let it bounce off the bottom or sides. Spin the hydrometer gently to release any bubbles that are sticking to it. At eye level read the number off the scale where the hydrometer emerges from the liquid. Be sure to read across the two bottom corners of the frown (not at the meniscus (top of the curve).