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Old 10-10-2012, 01:16 AM   #11
helibrewer's Avatar
Nov 2011
Santa Rosa, CA
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Boil off is usually lower indoors because the humidity is usually higher indoors than out....Except in the summer east of Colorado
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Old 10-10-2012, 01:18 AM   #12
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Oct 2012
Simi Valley, Ca
Posts: 54
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Ok cool some good advise here Thx. I with mark my mixing spoon and do an hour long boil of just water and use that for my basis then on brew day I will check the gravity and be able to adjust it even closer.. Thx for the tips all

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Old 10-10-2012, 01:19 AM   #13
Sep 2012
, Ohio
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Too many variables, On my gas stove I would boil off about 1/2 gallon/hour now with my turkey burner I am over 1 gallon an hour.
Since I am working in a non temperature controlled environment I would expect my boil off rate to change depending on the weather.

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Old 10-10-2012, 12:17 PM   #14
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Feb 2011
Sheffield, Ohio
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Did my 1st partial mash yesterday. Boiled off about 1/2 gallon in the 1 hour boil. Electric stove with new burners that heat up faster & more evenly. But harder to hold temp than the old,slower ones. Just can't win.
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Old 10-10-2012, 05:30 PM   #15
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Jun 2012
Newberg, Oregon
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I would assume 1.5 gallons of boil off if you are doing a full boil. Chances are your going to be between 1-1.5g per 60 minutes, assume 1.5g. You will probably lose .15-.25gal to trub, worst case you end up with 5 to 5.25 gallons of beer. You can always boil off extra water with another 15-20 mins of boil if you over estimate, or just take the extra beer if your gravity is fine.

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