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Old 04-13-2009, 02:37 AM   #1
cimirie
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Default Boil-off volume

What's a good general rule of thumb for boil off as a % of total volume per hour? I know there are many variables (pot size, surface area of boil, vigor of boil, etc) but I'm curious to know what you all use as a best guess for your recipe formulation. Thank you!!!

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Old 04-13-2009, 02:39 AM   #2
The Pol
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You cant ask that really. Boil off is a constant, basically. So mine is say 20% with a 5 gallon batch, which would be 10% with a 10 gallon batch. It wouldnt DOUBLE with a larger batch, see?

I boil off 1.5 gallons/hour

Boil off as a percentage is really bad calculating, most software does it as gal./hour, because that is what it is.

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Old 04-13-2009, 03:13 AM   #3
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Great info! Thanks.

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Quote:
Originally Posted by StuporMan View Post
You guys joke around with this all you want, but let me tell you something: I tried making my own beer one time and wound up with herpes!


Primary: Billy Corrigan Ale, malted cider experiment, Optimator clone
Secondary: Sorachi Ace IPA
Bottled: Dark Lord Clone Imperial Stout, Winter 2010 Spiced Ale Ambassador Brown Ale, Michigan Berry pLambic
Kegged: Old Woodward ESB, Strawberry Blonde
On Deck: Honey brown ale, dry stout
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Old 04-13-2009, 03:16 AM   #4
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FWIW, I boil off a gallon an hour in my 8 gallon pot on the high output burner on my stove.

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