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Author Topic: Question about batch sparge timing  (Read 6288 times)

Offline a10t2

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Re: Question about batch sparge timing
« Reply #15 on: July 22, 2015, 03:30:27 pm »
Anecdotally, based on numbers I see here, it seems common for home brewers to be getting 80-90% conversion efficiency due to one or more mash parameters (time, temperature, crush, pH) being sub-optimal. If you see efficiency gains to due to a longer batch sparge time, you'd see (marginally, in most cases) better efficiency still by giving the mash rest enough time to fully convert. Or better yet, fixing the root cause of the incomplete conversion.
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Offline dmtaylor

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Re: Question about batch sparge timing
« Reply #16 on: July 22, 2015, 04:04:37 pm »
Of all the variables, crush is Numero Uno.  Time and temperature are the most forgiving and barely make a difference at all with respect to efficiency -- they each impact fermentability/attenuation far more than mash efficiency.  If you have efficiency concerns, start with the crush, then go to water and mash pH, and save the marginal effects of time and temperature for last.
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Offline Steve L

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Re: Question about batch sparge timing
« Reply #17 on: July 22, 2015, 06:02:21 pm »
I like it. And best of all... gonna knock a bunch of time off of my sparge. :)
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Offline HoosierBrew

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Re: Question about batch sparge timing
« Reply #18 on: July 22, 2015, 06:05:20 pm »
  If you have efficiency concerns, start with the crush, then go to water and mash pH, and save the marginal effects of time and temperature for last.

+1
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Offline Steve L

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Re: Question about batch sparge timing
« Reply #19 on: July 22, 2015, 08:17:32 pm »
Also the iodine test is not particularly helpful.  http://braukaiser.com/wiki/index.php?title=Troubleshooting_Brewhouse_Efficiency has a table showing what gravity you should be getting at the end of your mash.  Also this may be helpful: http://braukaiser.com/download/Troester_NHC_2010_Efficiency.pdf
Great resources and info! Thanks for the links.
Corripe Cervisiam

Offline denny

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Re: Question about batch sparge timing
« Reply #20 on: July 23, 2015, 09:29:27 am »
  If you have efficiency concerns, start with the crush, then go to water and mash pH, and save the marginal effects of time and temperature for last.

+1

I've found time and temp make more difference than pH.
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Offline dmtaylor

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Re: Question about batch sparge timing
« Reply #21 on: July 23, 2015, 09:37:56 am »
You may be right.  The crush is still Numero Uno.  Not much else matters.
Dave

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Offline denny

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Re: Question about batch sparge timing
« Reply #22 on: July 23, 2015, 10:06:30 am »
You may be right.  The crush is still Numero Uno.  Not much else matters.

Agreed in general.
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Offline a10t2

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Re: Question about batch sparge timing
« Reply #23 on: July 23, 2015, 04:32:17 pm »
Well, assuming all the other parameters are reasonable, yes. If you only rest for 10 minutes, crush doesn't really matter.
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Offline factory

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Re: Question about batch sparge timing
« Reply #24 on: July 24, 2015, 10:30:12 am »
I like it. And best of all... gonna knock a bunch of time off of my sparge. :)

+1!  I was taught to let my sparge water sit for 20-25 minutes to "settle out" and set the grain bed.  No more waiting, I'm just going to stir and go!

Offline ynotbrusum

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Re: Question about batch sparge timing
« Reply #25 on: July 28, 2015, 01:36:12 pm »
I batch sparge for all the reasons stated above.  As to setting the grain bed, I use a little rice hulls and a fairly fine crush, then I run off slowly while vorlaufing.  Probably just under 50% flow rate.  Then when it looks reasonably clear I start collecting pretty close to wide open.  Then I put a double strainer on top of my boil kettle and pour the wort through it to catch any husks that might have gotten through.  I check my late runnings and they are always above 1.15 or so, so I assume the best as to astringency and pH....YMMV, of course.
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Offline hopfenundmalz

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Re: Question about batch sparge timing
« Reply #26 on: July 28, 2015, 03:04:40 pm »
I batch sparge for all the reasons stated above.  As to setting the grain bed, I use a little rice hulls and a fairly fine crush, then I run off slowly while vorlaufing.  Probably just under 50% flow rate.  Then when it looks reasonably clear I start collecting pretty close to wide open.  Then I put a double strainer on top of my boil kettle and pour the wort through it to catch any husks that might have gotten through.  I check my late runnings and they are always above 1.15 or so, so I assume the best as to astringency and pH....YMMV, of course.
1.015 is what I think you meant.
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Offline rbkohn@gmail.com

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Re: Question about batch sparge timing
« Reply #27 on: August 02, 2015, 10:04:01 am »
I think this thread has convinced me to try batch sparging. I really like the idea of cutting time off the brew day.

Offline HoosierBrew

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Re: Question about batch sparge timing
« Reply #28 on: August 02, 2015, 10:08:14 am »
I think this thread has convinced me to try batch sparging. I really like the idea of cutting time off the brew day.

I've done it for years. It's easy and makes great beer. Can't recommend  http://hbd.org/cascade/dennybrew/  highly enough.
Jon H.

Offline denny

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Re: Question about batch sparge timing
« Reply #29 on: August 02, 2015, 10:11:05 am »
I think this thread has convinced me to try batch sparging. I really like the idea of cutting time off the brew day.

I nave now batch sparged 485 batches.  If it didn't work great, I would have stopped doing it many years and hundreds of batches ago.
Life begins at 60.....1.060, that is!

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