Boil off gravity question - Home Brew Forums

 Home Brew Forums > Boil off gravity question

02-02-2010, 05:53 PM   #1
lunchbox
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Oct 2009
North Carolina
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If I have 16 gallons of wort at 1.053 and boil it down to 11 gallons, what is the gravity of the wort? Is there a calculator for that?

02-02-2010, 06:28 PM   #2
maida7
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Nov 2009
Asheville, NC
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wow that's a lot of boiling. Why so much?

Here is a quick stab at the math:

16/11 = 1.45

1.45 x 53 = 77

02-02-2010, 07:05 PM   #3
shortyjacobs
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Aug 2009
Twin Cities, MN
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Quote:
 Originally Posted by maida7 wow that's a lot of boiling. Why so much? Here is a quick stab at the math: 16/11 = 1.45 1.45 x 53 = 77 answer = 1.077 ?
Correct.

OP, it's [starting gallons]/[ending gallons]*[starting points of gravity]=[ending points of gravity]

In concentration talk, V1*C1 = V2*C2, (volume 1 * concentration 1 = volume 2 * concentration 2). Simplifying to get C2 gives you C2 = V1/V2*C1, which is the same equation as above...
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02-02-2010, 09:11 PM   #4
lunchbox
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Oct 2009
North Carolina
Posts: 426
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Thanks guys!