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Author Topic: Hop utilization vs. boil gravity  (Read 4436 times)

Offline Stevie

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Re: Hop utilization vs. boil gravity
« Reply #15 on: November 07, 2016, 03:12:48 pm »
I think he covered this on a recent episode of brew strong.

Offline JJeffers09

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Re: Hop utilization vs. boil gravity
« Reply #16 on: November 07, 2016, 03:13:07 pm »
Very interesting John/Denny/dmtaylor

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Big Monk

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Re: Hop utilization vs. boil gravity
« Reply #17 on: November 07, 2016, 05:40:27 pm »
The easiest thing to do is to break out the time divisor (4.15) from GTs equation and make it variable for tailoring utilization.


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Offline denny

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Re: Hop utilization vs. boil gravity
« Reply #18 on: November 08, 2016, 09:40:35 am »
It makes me wonder if you get more utilization in an extract brew than in AG.  Kinda seems like you would.  I may have to try some tests.
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Offline dmtaylor

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Re: Hop utilization vs. boil gravity
« Reply #19 on: November 08, 2016, 09:56:20 am »
It makes me wonder if you get more utilization in an extract brew than in AG.  Kinda seems like you would.  I may have to try some tests.

You may be right!  Intriguing.
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Offline Stevie

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Re: Hop utilization vs. boil gravity
« Reply #20 on: November 08, 2016, 10:10:27 am »
Maybe this is an argument for skimming.

Offline dmtaylor

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Re: Hop utilization vs. boil gravity
« Reply #21 on: November 08, 2016, 10:18:39 am »
Maybe this is an argument for skimming.

Yeah, wow.  Funny how we might rediscover lost knowledge from the past that brings us full-circle.  Then again...... more experiments are needed because maybe this whole thing is just moot.
Dave

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Offline Stevie

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Re: Hop utilization vs. boil gravity
« Reply #22 on: November 08, 2016, 10:22:45 am »
Maybe this is an argument for skimming.

Yeah, wow.  Funny how we might rediscover lost knowledge from the past that brings us full-circle.  Then again...... more experiments are needed because maybe this whole thing is just moot.
Cold side proteins wouldn't be affected by skimming, but I imagine large flocs must absorb some goodness.

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Re: Hop utilization vs. boil gravity
« Reply #23 on: November 08, 2016, 10:31:00 am »
IF I am not mistaken, initial boil foaming and actual hot break are 2 different things.. Even if you skimmed the entire time(since hot break takes time to fully develop) I doubt you would get it all.

Offline hopfenundmalz

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Re: Hop utilization vs. boil gravity
« Reply #24 on: November 08, 2016, 03:53:58 pm »
It makes me wonder if you get more utilization in an extract brew than in AG.  Kinda seems like you would.  I may have to try some tests.
I have thought that is why some say Tinseth works best all grain, but Rager is better for extract.
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Offline Stevie

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Re: Hop utilization vs. boil gravity
« Reply #25 on: November 08, 2016, 03:57:27 pm »
It makes me wonder if you get more utilization in an extract brew than in AG.  Kinda seems like you would.  I may have to try some tests.
I have thought that is why some say Tinseth works best all grain, but Rager is better for extract.
I thought it was more partial vs full boil. Man some of these truths have been around forever.

Offline denny

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Re: Hop utilization vs. boil gravity
« Reply #26 on: November 09, 2016, 10:39:49 am »
It makes me wonder if you get more utilization in an extract brew than in AG.  Kinda seems like you would.  I may have to try some tests.
I have thought that is why some say Tinseth works best all grain, but Rager is better for extract.
I thought it was more partial vs full boil. Man some of these truths have been around forever.

I think this is correct.  It may be that because extract is more often partial boil that it came to be associated with that, too.  I intend to try to contact Glenn Tinseth to see if he ever tested with extract.
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Offline denny

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Re: Hop utilization vs. boil gravity
« Reply #27 on: November 10, 2016, 11:28:06 am »
FWIW, I have been talking to Glenn Tinseth about all of this.  He did all of his testing with all grain wort, mainly from commercial breweries here and abroad  He is skeptical about the role of proteins in hop utilization.  I sent him the info I have and the discussion will hopefully continue.
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Big Monk

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Re: Hop utilization vs. boil gravity
« Reply #28 on: November 10, 2016, 04:09:00 pm »
Luckily his equations are perfect for tailoring to different systems.


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