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Old 06-12-2012, 01:18 AM   #21
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In a little bit of shock. Evidently I just got 89.6%.



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Old 06-12-2012, 01:19 AM   #22
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Originally Posted by befus
In a little bit of shock. Evidently I just got 89.6%.
With the BBB bag? I believe it if you mashed thin and squeezed like heck


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Open log Fermenting and gas-can secondary?? I am planning my next brew right now!!
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Old 06-12-2012, 02:00 AM   #23
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48QT Coleman cooler
CPVC manifold with slits on the bottom
Batch sparge, split sparge H2O in 2 batches
First AG, 59.9%
Second AG, 69.6%, it was a much better crush for sure

I can't imagine hitting 80% but I can dream
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Old 06-12-2012, 02:23 AM   #24
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I crush my own grains with a BC. I used the factory setting for the first 5 or 6 batches and then regapped it down to 32/1000. I use a Rubbermaid round cooler with a copper manifold. My first batches were at about 65-68%. After tightening up the gap I hit 82 to 85% regularly.

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Old 06-12-2012, 02:27 AM   #25
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6 gallon batches in a sanke tun averages 78% brewhouse.

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Old 06-12-2012, 02:37 AM   #26
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Haven't seen slits/holes facing upwards before...you'll leave more in the tun that way but it really doesn't matter. I'd also think you might get more "junk" in your runoff with gravity working against the openings...how has it worked for you?
I lose 1 quart to "deadspace" when running off. Allegedly having the slots facing up helps prevent channelling, not sure I buy that, but whatever. Having the slots facing upwards mimics the effect of the false bottom in a commercial mash tun... which will always have some deadspace by design. I tend to do about a 5 minute vorlauf to get a nice, clear wort. Once the runoff settles it's fine and comes out crystal clear.

SO; clear runoff, 80% efficiency, leave 1 qt behind. Works dandy for me.
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Old 06-12-2012, 03:18 AM   #27
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Quote:
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With the BBB bag? I believe it if you mashed thin and squeezed like heck
Yep.
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Old 06-12-2012, 01:28 PM   #28
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I'm still fine-tuning my technique.

BIAB: 60-80% depending on size of batch, crush, etc. Using my corona I'm hitting closer to 75% all the time, and I think I've finally dialed in my crush. Usually mash at 1.25ish and do a single batch sparge. 130ish protein rest if using pils as base.

PVC Manifold in 5 gallon bucket-tun: Just got 84% on a BDSA at 1.098. Did a hybrid sparge mentioned by WildWest in this post. Not sure how I'll do medium gravity brews in the future, but high gravity beers will get this treatment.

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Old 06-12-2012, 01:35 PM   #29
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I average about 70 to 75 with full volume BIAB. Best of 80 and worst of 63. I tried a small sparge and still stayed the same so the next variable to tweak will be the crush. Just bought a barley crusher and will try a smaller crush. I have been buying crushed grains from AHS and rebel brewer.

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Old 06-12-2012, 10:15 PM   #30
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Thanks guys! Youve convinced me I have a lot of room to improve. Next batch I'm going to try a different mill, and see if I can improve. I think I may try another fly sparge as well to see if I can improve there.



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