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Old 05-14-2007, 02:11 AM   #1
AGBrewer
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Default Boil-Off rate

What kind of boil off is everybody getting doing a ten gallon batch. I think I have pretty much everything down for my first AG batch other than how much water to start with.



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Old 05-14-2007, 01:22 PM   #2
boldone
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I do 5 gallon batches and lose 1 gallon in a 60 minute boil. Generally you will lose 15% an hour.



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Old 05-14-2007, 01:41 PM   #3
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I posted the same question awhile back.

I figured I am getting about a 24% boil off.

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Old 05-15-2007, 04:26 PM   #4
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I lose about a gallon per hour, rolling boil, using a keggle and a ~210k BTU banjo burner.

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Old 05-15-2007, 05:04 PM   #5
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1/2 gal/30 minutes at a brisk boil. -p

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Old 05-15-2007, 05:17 PM   #6
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If I recall my high school chemistry stuff, the boil off rate would be set by the heat apllied and the surface area. So, same burner, same pot, same rate. If 1 gal/hr for a 5 g batch, 1gal/hr for 10 gallons.

Of course, if you need to sparge more to get the sugars, you'll need to boil more.



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