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Old 01-28-2013, 12:43 AM   #1
Shaneoco1981
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Default 96.6% efficiency?

Ok, so my buddy and I brewed a batch of Cream Ale today. We did a 11.5 gallon batch, he keeps half, and I keep half. Our recipe was:

11 # 2 row
11# Belgian Pilsner Malt
4# 4 oz. Flaked Rice
2 # Rice Hulls

Mashed at 149 for 45 min, Mash out at 170 for 15 min. Anyways, we were targeting a gravity of 1.046. We somehow got a gravity of 1.077. According to Beersmith, we got a brewhouse efficiency of 96.6%. We both thought that was odd, so we checked with both a hydrometer and a refractometer. How is that possible other then when I ordered the grain, they gave me more then what I asked for? Any thoughts?


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Old 01-28-2013, 12:59 AM   #2
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Did you hit all your volume marks? How much went into the kettle?


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Old 01-28-2013, 01:02 AM   #3
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This is very high, but the recipe you listed comes up higher than the 1.046 you say you were shooting for when I put it in Beersmith. I get 1.055 as the predicted OG with the default efficiency (72% mash efficiency). I brewed a batch today and got 86% efficiency, so you could easily get the 1.077 if you missed your volumes by just a little bit.
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Old 01-28-2013, 01:05 AM   #4
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Volume was right on.... And my Beersmith is set to 68%. That's pretty standard for me... I rarely hit 70% efficiency which makes it so odd....
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Old 01-28-2013, 01:08 AM   #5
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Quote:
Originally Posted by Shaneoco1981 View Post
Ok, so my buddy and I brewed a batch of Cream Ale today. We did a 11.5 gallon batch, he keeps half, and I keep half. Our recipe was:

11 # 2 row
11# Belgian Pilsner Malt
4# 4 oz. Flaked Rice
2 # Rice Hulls

Mashed at 149 for 45 min, Mash out at 170 for 15 min. Anyways, we were targeting a gravity of 1.046. We somehow got a gravity of 1.077. According to Beersmith, we got a brewhouse efficiency of 96.6%. We both thought that was odd, so we checked with both a hydrometer and a refractometer. How is that possible other then when I ordered the grain, they gave me more then what I asked for? Any thoughts?

How much more and did you use it in the brew?
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Old 01-28-2013, 01:09 AM   #6
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Quote:
Originally Posted by Shaneoco1981 View Post
when I ordered the grain, they gave me more then what I asked for? Any thoughts?
How much more?
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Old 01-28-2013, 01:12 AM   #7
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I ordered what I said. I am just wondering if the LHBS gave me more then what I ordered...
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Old 01-28-2013, 01:23 AM   #8
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OK, reread the post...you're not sure they gave you more. If they did, that explains it, if not, IDK.
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Old 01-28-2013, 01:24 AM   #9
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I can't think of an explanation other than measurement errors, either by you or the HBS. It is unlikely that your typically sub-70% system is now pulling north of 95%.
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Old 01-28-2013, 01:24 AM   #10
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What was the efficiency calculated for the recipe?

Many will assume 75% efficiency but if it was calculated for less and your system is better then it will create a difference as well in your results.

It is also possible then grain you ordered had a better quality crush than what you are used to as well and that too will bump up your efficiency as well

Edit: is it possible the recipes efficiency was calculated less than your systems( re read and say your typical at 68%)


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