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Old 12-08-2012, 11:25 PM   #1
doublehaul
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Default Confused with my numbers

I just brewed this pliny the elder recipe - http://www.homebrewtalk.com/f69/piney-elder-clone-296940/


Here's what I used for 70% efficiency:

12.8 lb Pale 2-Row 37 1.8 87%
9.4 oz Carapils (Dextrine Malt) 33 1.8 4%
9.4 oz Crystal 45L 34 45 4%
11.8 oz Corn Sugar - Dextrose

My pre-boil volume was about 7.4 gallons, 1.050 gravity
I calculated I should end up at around 1.63 because the corn sugar adds about 8 points, so I thought I was looking OK for my target of 5.5 gallons post boil, a little high (I wanted to hit 1.070 - 1.073)

50 x 7.4 = 370

370 / 5.5 = 1.067

My post boil volume was 4.5, and my post boil gravity 1.070. What the hell?

I didn't leave anything in the kettle. I know there's a lotta hop loss - there's a ton of hops, but I held my hop paint strainer bag over my kettle until I thought all liquid was drained.

And it's like I went from 73% efficiency pre-boil to 62% post-boil.

Any explanation?! It was a 90 minute boil, but that seems like alot of boil off, and my numbers don't seem to add up.

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Last edited by doublehaul; 12-08-2012 at 11:32 PM. Reason: added efficiency
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Old 12-09-2012, 05:14 PM   #2
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the only thing that might make sense is maybe those hops really did soak up 1 gallon?

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