A Hydrometer Measures the density or specific gravity of a liquid. Used to give a reading to the gravity of your wort.
Suspend the Hydrometer in a sample of your wort to get the reading in one of our 250mL Glass Cylinders or our 100mL Plastic Cylinder.
To calculate your % Alcohol By Volume
(OG - FG) x 131.25 = ABV %
OG is your Original Gravity e.g. 1.050 as shown by your hydrometer before you pitch your yeast.
FG "Final Gravity" e.g. 1.010 as shown by the hydrometer after it has fermented
