An instrument used to measure the specific gravity (or relative density) of liquids; that is, the ratio of the density of the liquid to the density of water.
Source: http://en.wikipedia.org/wiki/Hydrometer
Image: www.homebrewblog.com.au
An instrument used to measure the specific gravity (or relative density) of liquids; that is, the ratio of the density of the liquid to the density of water. Source: http://en.wikipedia.org/wiki/Hydrometer Image: www.homebrewblog.com.au The FG is the gravity or density of the wort after fermentation is complete in other words after all the sugar has been converted by the yeasties.
The OG of a wort is the gravity or density before fermentation begins. Density refers to the amount of fermentable sugars in the liquid.
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