Plastic Hydrometer Test Jar 14"
The Plastic Hydrometer Test Jar allows for easy measurements of specific gravity in fermented and unfermented beverages.
Checking the Specific Gravity of unfermented and fermented beverages with a Test Jar is quick and easy.
To test for gravity, use a Fermtech Wine Thief to remove a liquid sample from a fermentation vessel and fill the test jar with the sample.
Place a hydrometer in the test jar and note the location where the liquid crosses the stem of the hydrometer.