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 Home Brew Forums > Extra 15 minutes of mash?

07-29-2008, 04:33 PM   #11
wildwest450
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Quote:
 Originally Posted by wurt 1. The recipe seems to assumes ~70% efficiency, which is pretty good, and only really achievable if you are continuously sparging. I personally prefer batch sparging, but have never gotten above 65% efficiency from a batch sparge.
Simply not true. Since the purchase of my Barley crusher I have consistently hit 80%+. Before I was at a steady 65 to 70%, both with a split batch sparge.

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07-29-2008, 04:53 PM   #12
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Does everyone talk about mash efficiency or brewhouse?

I tend to calculate my efficiency from what I get into my fermenters, which I think would be my brewhouse. To get my mash efficiency I should take a pre-boil hydrometer sample and the amount of liquid in my boil pot right?

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07-29-2008, 05:34 PM   #13
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That is correct. You take those points from the reading and multiply by the gallons collected. You then divide that by the total possible points from your grain. (For your grain you multiply by the number of # you used.)

EX. You get at 1.046 @ 6 gallons. 46*6=276

Add your numbers up using the ppg for each grain. 11# 2-row at 1.036 11*36=396

You take 276/396=.69 or 69%

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07-29-2008, 06:01 PM   #14
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Thanks! I'll have to do that to see what sort of mash efficiency I'm getting as that seems to be what everyone uses as their reference point (I was feeling bad about my 69% brewhouse efficiency on the last brew)

As for the original post. I have always found Austin HomeBrew Supply's crush to be just fine for me. You may have issues with hitting your mash temps. Also when you sparge try using water near 180 degrees to make the sugars more soluble.

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07-29-2008, 06:06 PM   #15
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By the way, most brewing software will calculate it for you. Just check the box that says you took your reading from the brew pot.

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07-29-2008, 06:33 PM   #16
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+1 on disagreeing with 70% being a good efficiency for batch sparging, I routinely get 80% eff.

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07-29-2008, 07:21 PM   #17
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I think the stirring may be your issue. I'm pretty new to AG myself and I just added 15 points to my brewhouse efficiency (70 to 85) by adding a mash out and stirring more throughly. I also used 5.2 stabilizer for the first time in this batch. That might have helped as well.

Just like you, I was stirring very gently toward the bottom of my cooler tun for fear of hooking and disconnecting my circular braid. What I do now is kind of scoop the more compacted grain with my long handle spoon from the bottom up to the top where I can stir it in.

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07-29-2008, 07:28 PM   #18
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Quote:
 Originally Posted by SC_Ryan I think the stirring may be your issue. I'm pretty new to AG myself and I just added 15 points to my brewhouse efficiency (70 to 85) by adding a mash out and stirring more throughly. I also used 5.2 stabilizer for the first time in this batch. That might have helped as well. Just like you, I was stirring very gently toward the bottom of my cooler tun for fear of hooking and disconnecting my circular braid. What I do now is kind of scoop the more compacted grain with my long handle spoon from the bottom up to the top where I can stir it in.
I use 5.2PH Stabalizer and do a 2 hour mash. I routinely hit over 90%. This was even with my LHBS crushed grains. The process is detailed in my signature.

A 2 hour mash works for me, but I might be scaling back now that I have a Barley Crusher. It's a lot longer than most people go, but it ensures you get the most out of your grain.
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07-29-2008, 07:33 PM   #19
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Quote:
 Originally Posted by SC_Ryan I think the stirring may be your issue. I'm pretty new to AG myself and I just added 15 points to my brewhouse efficiency (70 to 85) by adding a mash out and stirring more throughly. I also used 5.2 stabilizer for the first time in this batch. That might have helped as well. Just like you, I was stirring very gently toward the bottom of my cooler tun for fear of hooking and disconnecting my circular braid. What I do now is kind of scoop the more compacted grain with my long handle spoon from the bottom up to the top where I can stir it in.
You know, I have this nagging suspicion that you might be right. And if you are, then I would feel at the same time embarrassed and relieved. Right now, I have a circular braid setup, with the S.S. braid looping to a brass T fitting. Problem is, though, that the T simply sleeves around the short length of vinyl tubing going to the barb. This can be simply pulled off, which I do to clean it. But this makes me sheepish when stirring the bottom.

I'm wondering if I shouldn't try just pulling it off, reworking it into a straight braid that I can hose clamp down, and put a length of perforated vinyl tube inside the braid for rigidity. Perhaps if I feel more confident when stirring, I'll get more into suspension.

After I check the thermometers and the hydrometer, I'll give that a shot. Then... I might give that 5.2 Stabilizer a go.
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07-29-2008, 07:35 PM   #20
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Quote:
 Originally Posted by jpsloan I'm wondering if I shouldn't try just pulling it off, reworking it into a straight braid that I can hose clamp down, and put a length of perforated vinyl tube inside the braid for rigidity. Perhaps if I feel more confident when stirring, I'll get more into suspension.
A stainless braid can take a bit of abuse. Don't worry about hitting it a few times. I don't reinforce mine with vinyl. It seems fine after 4 AG batches.

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