Boil-off volume

cimirie · Apr 12, 2009

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!!!

The Pol · Apr 12, 2009

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.

cimirie · Apr 12, 2009

Great info! Thanks.

janzik · Apr 12, 2009

FWIW, I boil off a gallon an hour in my 8 gallon pot on the high output burner on my stove.

Boil-off volume

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Boil-off volume

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