The relative density of the wort before it is fermented to produce beer, being chiefly dependent on the quantity of fermentable sugars in solution. It is regarded as a guide to the alcoholic strength of the finished beer.
- Take your original gravity reading before the yeast is pitched after brewing.
- The specific gravity of beer measured before fermentation is called its original gravity.
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Syllabification: o·rig·i·nal grav·i·ty
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