Author Topic: Mash Efficiency Problem  (Read 11641 times)

Offline mripa

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Re: Mash Efficiency Problem
« Reply #105 on: September 01, 2013, 07:50:19 PM »
I know you were shooting for Denny, but IMHO, the answer is, no, it doesn't matter.
Denny is a busy man I'm sure  :D
I haven't been stirring, but thought maybe that was part of my efficiency problem.
Thanks

Offline HoosierBrew

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Re: Mash Efficiency Problem
« Reply #106 on: September 01, 2013, 08:07:53 PM »
The double crush definitely helps.  How did you do on your volumes this time?  Did you hit your target volume pretty closely?
Jon H.

Offline mripa

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Re: Mash Efficiency Problem
« Reply #107 on: September 01, 2013, 08:35:34 PM »
Came close - I was about .25 gallons on the + side.
Still learning the water adjustments.  I think my evaporation rate was off a bit.

Offline denny

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Re: Mash Efficiency Problem
« Reply #108 on: September 02, 2013, 08:38:21 AM »
I know you were shooting for Denny, but IMHO, the answer is, no, it doesn't matter.

And Denny agrees.
Life begins at 60.....1.060, that is!

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The best, sharpest, funniest, weirdest and most knowledgable minds in home brewing contribute on the AHA forum. - Alewyfe

Offline mripa

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Re: Mash Efficiency Problem
« Reply #109 on: September 02, 2013, 05:57:24 PM »
How necessary is it to be exact on 2nd runnings water volume?
I drained all from first runnings and on 2nd running I stopped at my pre-boil amount.
I measured about .25 gallons of unused 2nd runnings.
 

Offline dmtaylor

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Re: Mash Efficiency Problem
« Reply #110 on: September 02, 2013, 06:01:54 PM »
If you want the best efficiency, collect and boil every single drop.  Otherwise your efficiency will definitely take a hit.
Dave

"This is grain, which any fool can eat, but for which the Lord intended a more divine means of consumption. Let us give praise to our Maker, and glory to His bounty, by learning about... BEER!" - Friar Tuck (Robin Hood - Prince of Thieves)

Offline jeffy

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Re: Mash Efficiency Problem
« Reply #111 on: September 03, 2013, 08:42:18 AM »
One would think after all these years that I'd figure all the volumes out, but the last two batches I ended up collecting way too much wort and had to extend the boil by over an hour.  'Hit my numbers in the end but it took a lot longer.
Jeff Gladish, Tampa (989.3, 175.1 Apparent Rennarian)
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Offline denny

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Re: Mash Efficiency Problem
« Reply #112 on: September 03, 2013, 09:24:07 AM »
One would think after all these years that I'd figure all the volumes out, but the last two batches I ended up collecting way too much wort and had to extend the boil by over an hour.  'Hit my numbers in the end but it took a lot longer.

I have the same affliction.
Life begins at 60.....1.060, that is!

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Offline ynotbrusum

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Re: Mash Efficiency Problem
« Reply #113 on: September 04, 2013, 05:04:45 AM »
One would think after all these years that I'd figure all the volumes out, but the last two batches I ended up collecting way too much wort and had to extend the boil by over an hour.  'Hit my numbers in the end but it took a lot longer.

I have the same affliction.

I have a new grain mill and have been using a larger boil kettle, so I have been adjusting things one at a time - volumes have been big to allow for greater boil off, but external temperature and humidity have been giving me differences that I didn't expect.  Sometimes much longer boils or just a little different beer than intended.  Still dialing in....
Hodge Garage Brewing: "Brew with a glad heart!"

Offline nicosan1

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Re: Mash Efficiency Problem
« Reply #114 on: September 13, 2013, 09:19:16 AM »
So about to brew my Black IPA on Sunday, these tips will help out. I'm debating using a ratio of 1.5 or 1.75 qt/pd for initial mash-in. Will mash for 75 to be safe in my 10 gallon round rubbermaid mash tun. Will stir only at beginning and once 20 minutes before I mash out when I have to add my Midnight Wheat.  I also was wondering if perhaps I should slow my vorlauf to a trickle to increase efficiency?  I thought I did it slow in past but that meant getting wort out in 10-15 minutes, perhaps extend to 45 minutes. 

Guy at my LHBS told me one trick could be to collect first runnings, raise to 168 in kettle, recirculate those, then batch sparge one final time with sparge water to get final volume up to 6.7 gallons to get efficiency up better.  Does that sound like a useful exercise as well?

Lastly, using Denny's favorite as my yeast as a new experience.

Offline denny

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Re: Mash Efficiency Problem
« Reply #115 on: September 13, 2013, 09:27:33 AM »

Guy at my LHBS told me one trick could be to collect first runnings, raise to 168 in kettle, recirculate those, then batch sparge one final time with sparge water to get final volume up to 6.7 gallons to get efficiency up better.  Does that sound like a useful exercise as well?

I don't see why you'd want to do that.  Just run off your mash and batch sparge with enough 185F water to hit your boil volume.  No point in needlessly complicating things!
Life begins at 60.....1.060, that is!

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Offline nicosan1

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Re: Mash Efficiency Problem
« Reply #116 on: September 13, 2013, 09:45:33 AM »
As always Denny, I defer to your advice. Here's to hoping that I get a nice black wort that will make a black ale that will meet the approval of my girlfriend's palate for Black Ale's.

1. 1.5/1.75 qt/pd for mash in
2. add grains to water and stir at beginning and close mash cooler
3. 75 minutes to mash, add Midnight Wheat in final 20 min or so
4. Slowly vorlauf and extract wort
5. calculate your volume with dowl and figure out how much sparge water to add to make difference
6. add 185 degree sparge water, stir, let sit for 20 min
7. vorlauf sparge water.
8. Fin


Offline denny

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Re: Mash Efficiency Problem
« Reply #117 on: September 13, 2013, 09:59:17 AM »
As always Denny, I defer to your advice. Here's to hoping that I get a nice black wort that will make a black ale that will meet the approval of my girlfriend's palate for Black Ale's.

1. 1.5/1.75 qt/pd for mash in
2. add grains to water and stir at beginning and close mash cooler
3. 75 minutes to mash, add Midnight Wheat in final 20 min or so
4. Slowly vorlauf and extract wort
5. calculate your volume with dowl and figure out how much sparge water to add to make difference
6. add 185 degree sparge water, stir, let sit for 20 min
7. vorlauf sparge water.
8. Fin

Sounds good to me!
Life begins at 60.....1.060, that is!

www.dennybrew.com

The best, sharpest, funniest, weirdest and most knowledgable minds in home brewing contribute on the AHA forum. - Alewyfe

Offline mtnrockhopper

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Re: Mash Efficiency Problem
« Reply #118 on: September 13, 2013, 10:31:40 AM »

Guy at my LHBS told me one trick could be to collect first runnings, raise to 168 in kettle, recirculate those, then batch sparge one final time with sparge water to get final volume up to 6.7 gallons to get efficiency up better.  Does that sound like a useful exercise as well?

Maybe this would help, but it really sounds overly complicated. I always come up with ideas like this on the spot - but then my wife rolls her eyes and suggests something half as complicated and twice as effective.
Jimmy K

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Offline nicosan1

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Re: Mash Efficiency Problem
« Reply #119 on: September 16, 2013, 10:57:35 AM »
So I brewed and I think I figured out the problem. I still had an efficiency problem, though not quite as bad, did have double crush and it improved but not by a ton.

I use a 10 gallon round rubbermaid mash ton, and I am brewing 5-gallon batches so I am getting about 7.3 gallons of wort for boil. I did use 1.75 qt/pd for my mash in, but was still getting temperature drops from mash in at 153 drop to about 147 by the end. I have a fair about amount of deadspace above my mash because I have a big cooler. Could that be a big part of my efficiency problem?

How can I better insulate my cooler to stop this significant drop in temp?  Towels on bottom of tun and at the top?  Towel around the ball valve? How can I fill up some of that deadspace inside?  Foil inside my mash tun?

I am open to any and all ideas, particularly from those with experience with round mash coolers.