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Brew FAQ Definitions Original Gravity (o.g.)
Brew FAQ Definitions Original Gravity (o.g.) | Original Gravity (o.g.) |
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| Written by Steven Albright | |
| Sunday, 24 February 2008 | |
A measure of wort's density at the beginning of fermentation, which will always be higher than 1 because solubles, such as maltose, are suspended in it. As the wort ferments, yeast converts maltose into alcohol and the gravity drops because alcohol is lighter that water. When a beer is done fermenting brewers take a final gravity reading or finishing gravity (f.g.).
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| Last Updated ( Sunday, 24 February 2008 ) |
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