How Do You Measure Specific Gravity Of A Liquid Using A Hydrometer?
This is an easy “how-to” reference for wine or beer home brewers to quickly measure their Specific Gravity of a liquid (IE: wort, wine, beer, etc) Extract a sample of your liquid to measure. Depending on the size of your hydrometer, you will usually need between 5 and 10 ounces. Allow the liquid to cool to room temperature. Fill the Hydrometer tube approximately 75-80% with the liquid to be tested. More or less may be necessary depending on the liquid being tested. Very slowly place the hydrometer into the liquid until equilibrium or “floating point” is reached. (Your goal is to limit any liquid adhering to the hydrometer above the “equilibrium” line as this would affect the reading.) If the hydrometer touches the bottom of the tube, more liquid will need to be added before a reading can be taken. Read the value on the hydrometer exactly at the bottom of the equilibrium line (not where the liquid “climbed up” the sides of the hydrometer.) Record your Specific Gravity Record the tempera