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The original gravity is the specific gravity measured before fermentation. From it the analyst can compute the original extract which is the mass (grams) of sugar in 100 grams (3.5 oz) of wort (°P) by use of the Plato scale. The symbol will denote OE in the formulas which follow.
The following fields form the core information of the BeerXML structure . Recipes; Recipe name Brewer Brewing method (All grain, Partial Mash, Extract) Recipe Type (Ale, Lager, Hybrid, etc.) Recipe volume (Run length) Boil volume (Wort size) Boil time (duration) Recipe efficiency Estimated values OG (Original Gravity) FG (Final Gravity) Color (SRM) Bitterness () Alcohol content (%abv)
A basic formula [4] to calculate beer strength based on the difference between the original and final SG is: A B V = 131.25 ( O G − F G ) {\displaystyle ABV=131.25(OG-FG)} The formula below [ 5 ] is an alternate equation which provides more accurate estimates at higher alcohol percentages (it is typically used for beers above 6 or 7%).
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Attenuation can be quantified by comparing the specific gravity — the density of a solution, relative to pure water — of the extract before and after fermentation, quantities termed the original and final gravities. Specific gravity can be measured by buoyancy, with a hydrometer. The higher the specific gravity of a solution, the higher the ...
Early London porters were strong beers by modern standards. Early trials with the hydrometer in the 1770s recorded porter as having an original gravity (OG) of 1.071 and 6.6% alcohol by volume (ABV). [17] Increased taxation during the Napoleonic Wars pushed its gravity down to around 1.055, where it remained for the rest of the 19th century ...
Replicating the basic yet unique texture and flavor of McDonald's fries involves special attention to the shoestring thickness and the heat of the cooking oil. Recipe: Food.com 4kodiak / istockphoto
Common measurements of 10° or 12° would be equivalent to 1040 or 1048 in the English "original gravity" scale. A common misconception is that this is a measure of the colour of the beer. Since the fall of communism, most large commercial breweries were privatized and subsequently bought by foreign multinational companies.