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Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Too efficient???
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Old 11-04-2011, 01:41 AM   #1
ClarnoBrewer
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Default Too efficient???

Today was my first batch on a 25-gallon system. I decided to start with something simple and malty, so I did a Scottish session ale. I wanted to to come out around 3.4% or so.

Here's the grain bill:
23# Golden Promise
3.5# Cherry smoked malt
2# flaked barley
1.5# Patagonia Especial 140 (recipe called for Special B, LHBS said this would do)
1# Chocolate Rye
1# Roasted Barley
1# Pale Chocolate

Mashed at 152* for 1 hour, batch sparged to pull off 28g.
I was hoping for 1.033 into the boiler (which is what BeerSmith indicated), but got 1.048. I added a gallon of water, but my final OG was still 1.048.

Not a big deal, but I'm curious as to where I missed it on the numbers. Beersmith has always been right on. Surely I'm not getting 99% efficiency, so something is screwy.

Thanks!

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Old 11-04-2011, 01:45 AM   #2
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I assume your final volume was correct? Are absolutely sure you didn't measure out too much grain somewhere??

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Old 11-04-2011, 01:48 AM   #3
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Yeah, I ended up with right at 25g. And I've rechecked my grain and can't find anything amiss there. Weird.

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Old 11-04-2011, 09:36 PM   #4
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This really has me perplexed. I had to manually add a couple of the grains to BeerSmith, but I can't seem to find anything wrong. I'm going to try to figure this one manually (it's been a while) and see what I get. It would be nice to get an idea of the efficiency of this rig before I brew again.

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Old 11-04-2011, 09:48 PM   #5
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Alright, I know I'm kind of talking to myself here, but maybe someone wiser (basically anyone) will chime in. I used Palmer's system to add up points, and I got 1.048. Looks like I was dead on. Apparently something is a bit off in BeerSmith, probably user error.

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Old 11-04-2011, 09:50 PM   #6
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Quote:
Originally Posted by ClarnoBrewer View Post
Alright, I know I'm kind of talking to myself here, but maybe someone wiser (basically anyone) will chime in. I used Palmer's system to add up points, and I got 1.048. Looks like I was dead on. Apparently something is a bit off in BeerSmith, probably user error.
Can you post your math? Since you've already done it by hand and all...
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Old 11-04-2011, 09:57 PM   #7
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Yeah, with long division and everything! On paper!

My most recent revelation is that BeerSmith is fine, assuming that my system ran at 100%. I just don't believe that.

So here's what I got, math-wise:
23# Golden Promise @ 38 ppg = 874
3.5# Smoked Malt @ 38 ppg = 133 (generous approximation)
2# Flaked Barley @ 32 ppg = 64
1.5# Patagonia 140 @ 31 = 46
1# Chocolate Rye @ 29 = 29
1# Roasted Barley @ 25 = 25
1# Pale Chocolate @ 28 = 28 (another estimate from reg. Choc. Malt)
Total = 1199 / 25 = 47.96, so 1.048 or so

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Old 11-04-2011, 10:08 PM   #8
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Any chance your hydro paper slipped? You definitely did not hit 100% efficiency.


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Old 11-04-2011, 10:12 PM   #9
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Good thought on the hydro, but no dice. Just checked it in water. I agree that I couldn't have hit 100%, but I wonder how close is reasonable on a bigger system? My last brew on my 5g hit about 80%.

This may remain a mystery. I'm brewing a doppelbock next week. We'll see what happens there. Then I'll start to worry.

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Old 11-04-2011, 10:38 PM   #10
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Kind of off-topic...

I live in Newberg, OR and my LHBS also didn't have Special B but had the Especial. I can't find much information about it online. It must be new.

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