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Old 09-06-2011, 06:33 PM   #1
ChandlerBang
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Default How to calculate efficiency on first AG batch?

I use Brewtarget software, but I'm still learning it. How do I figure the efficiency on this first batch?

6 lb German Pilsner Malt
4 lb Red Wheat
60 minute mash at ~149 F

Post boil the SG was 1.044 at 5 gallons. I forgot to get a preboil SG.

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Old 09-06-2011, 06:41 PM   #2
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Plug in your recipe, then adjust the efficiency setting until the OG matches what you measured. I am getting 58% for your numbers.

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Old 09-06-2011, 06:58 PM   #3
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I don't use software (yet) so figure out everything with a few calculations. I went through this on my blog recently (link in signature) but there is also some excellent information at:

http://www.suebob.com/index.php?opti...cles&Itemid=66

At the very least, you can see how close your software is getting to your manual calculations, just to double check things.

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Old 09-06-2011, 10:41 PM   #4
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Oh there it is. The funny thing is the target OG according to the kit instructions (AHS) was 1.051. According to BrewTarget that was "slightly malty", now with the corrected OG it says "balanced"

I already have two more kits to try to better my system on. Thanks for the help.

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Old 09-06-2011, 10:48 PM   #5
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I just read that mash temps to the lower end of the scale can take longer to convert. I mashed right around 148 +/-. Could that cause low conversion on a 60 minute mash?

I was shooting for 150, but I hit it high (158) then added a bit too much ice and ended up with 148 so I said f- it, I'm rolling with it.

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