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-   -   help calculating gravity after boil (http://www.homebrewtalk.com/f36/help-calculating-gravity-after-boil-292688/)

canyonbrewer 01-07-2012 10:01 PM

help calculating gravity after boil
 
Hi all -

was unable to measure my OG after the boil today.

I did however have 13 gallons at 1.053 prior to the boil. I boiled off 2 gallons to end with 11 gallons

Is there a formula to calculate my OG after boil?

Thanks!

stiz85 01-07-2012 10:29 PM

Beersmith 2's boil-off tool says your sitting at about 1.063...that's as long as you corrected your hydrometer back to 60 deg F for that first reading...

hope that helps!

ajf 01-07-2012 10:31 PM

53 * 13 / 11 = 63 or 1.063

-a.

dzlater 01-08-2012 12:46 PM

(preboil gravity*preboil volume)=(postboil gravity*postboil volume)


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