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Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > Keggle Boil-off Rate
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Old 07-27-2011, 01:48 AM   #1
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Default Keggle Boil-off Rate

Okay, all you people with keggles. I'm getting one, too. It's on it's way.



Now I have to try to dial in the boil-off rate, though. I've got one of these: http://www.amazon.com/gp/product/B0009JXYQ4

Any rough estimations would be helpful. Thanks.

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Old 07-27-2011, 02:05 AM   #2
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I boil off about 1.5 gallons per hour. I set beersmith to 20%. YMMV. You'll probably have to do a couple of boils to know for sure. Lots of variables.

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Old 07-27-2011, 02:09 AM   #3
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Quote:
Originally Posted by Reelale
I boil off about 1.5 gallons per hour. I set beersmith to 20%. YMMV. You'll probably have to do a couple of boils to know for sure. Lots of variables.
Are you doing 5 or 10 gallon batches and what's you heat source?
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Old 07-27-2011, 02:16 AM   #4
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I boil off 3/4 of a gallon in one hour. Thats five gallon batches on a sp 10 .

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Old 07-27-2011, 02:30 AM   #5
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Quote:
Originally Posted by 37OliveStBrews

Are you doing 5 or 10 gallon batches and what's you heat source?
Propane tank hooked up to the stand I linked to (SQ14). 5 gallon batches.
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Old 07-27-2011, 02:52 AM   #6
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I boil off 2.6 gallons an hour, just tested last weekend went from 5 gallons down to about 2.4.

it depends on your location
it depends on your equipment
it depends on how vigorous your boil is

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Old 07-27-2011, 03:02 AM   #7
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I boil off 2.6 gallons an hour, just tested last weekend went from 5 gallons down to about 2.4.
Wow, that's some crazy boil off rate!
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Old 07-28-2011, 02:59 AM   #8
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Default ridiculous boil off

I'm up to 6.5 ga and still had to top off w/ 2 ga. 90 deg, 90% humidity, at sea level.

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Old 07-28-2011, 03:12 AM   #9
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Boil-off rate is independant of batch size. It's mostly just a matter of how much heat is getting into the kettle. So, the burner is the biggest factor here.

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Old 07-28-2011, 02:25 PM   #10
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Quote:
Originally Posted by passedpawn View Post
Boil-off rate is independant of batch size. It's mostly just a matter of how much heat is getting into the kettle. So, the burner is the biggest factor here.
Agree, but I would also add the surface area of the boiling liquid is significant.
I know the OP asked about a keggle, but the diameter of your kettle can make a huge difference.
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