The Original Gravity (OG) is the gravity of a beer before it is fermented. The ultimate alcohol content of a beer is related to the Original Gravity and Final Gravity. Gravity is measured with a hydrometer or a refractometer.
The Original Gravity (OG) is the gravity of a beer before it is fermented. The ultimate alcohol content of a beer is related to the Original Gravity and Final Gravity. Gravity is measured with a hydrometer or a refractometer.