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Old 02-22-2010, 09:12 PM   #1
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Default Boiling hops in sparge water for better utilization?

I am just getting into AG brewing and building a e-keggle setup.

I have been reading about hop utilization being lower in high OG beer and also where people are concerned about utilization issues using the hop sock. I came up with an idea to take a few gallons of the second sparge run-off and use that to boil the hops in the hop sock in a second stove top pot to get the most of my hops in high OG beers.

Anyone do this? Besides another pot to wash, are there any disadvantages to this?

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Last edited by Photopilot; 02-22-2010 at 09:24 PM. Reason: clarified second sparge to mean the runoff of second sparge
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Old 02-22-2010, 09:17 PM   #2
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When doing partial boil/PM, I have, on occasion, pre-boiled my top-off water with part of the bittering hops. Same basic idea.

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Old 02-22-2010, 09:19 PM   #3
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Hop utilization requires more than just water. There have to be some sugars or starches or something.

I just remember reading that somewhere.

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Old 02-22-2010, 09:23 PM   #4
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Originally Posted by cheezydemon3 View Post
Hop utilization requires more than just water. There have to be some sugars or starches or something.

I just remember reading that somewhere.
I missed that chapter... Actually I remember something along those lines but have read too much to remember it all. But I guess I should have clarified I meant the sparge runoffs. So it will be wort, just weak wort. You do bring up a good point though can it be too weak to bring on the utilization?
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Old 02-22-2010, 09:29 PM   #5
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You would also have to calculate the gravity and IBU's separately and then calculate a dilution to determine the final potential.

A lot of work to avoid tossing in another half ounce of hops.

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Old 02-22-2010, 09:59 PM   #6
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You would also have to calculate the gravity and IBU's separately and then calculate a dilution to determine the final potential.

A lot of work to avoid tossing in another half ounce of hops.
Your probably right in that it is only a fraction of an ounce of hops saved. But do i really need to do all that math? Can't i just boil the hops in a sock in 2 gallons of second sarge run-off, which would be 1.020 gravity (just a guess). Add that to the last 5 minutes of boil to the big BK, then factor in utilzation for gallons at 1.020 in a 10 gallon batch?

I am using Beersmith. Does it factor in OG and utilization when calculating the IBUs? If so then I would have to do the math.
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Old 02-22-2010, 10:48 PM   #7
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Quote:
Originally Posted by cheezydemon3 View Post
Hop utilization requires more than just water. There have to be some sugars or starches or something.

I just remember reading that somewhere.
Common factoid. Pure water results in the highest conversion and conversion rate.
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Old 02-23-2010, 02:16 PM   #8
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Pure water results in more hop utilization?

Are you referring to sparge water David?

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Old 02-23-2010, 02:40 PM   #9
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why dont you just boil longer for more utilization

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Old 02-23-2010, 02:52 PM   #10
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Quote:
Originally Posted by cheezydemon3 View Post
Pure water results in more hop utilization?

Are you referring to sparge water David?

http://www.realbeer.com/hops/ written by Tinseth.

http://brewingtechniques.com/library....1/miller.html

http://www.byo.com/stories/recipes/a...-cool-brewings
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