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Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > AG = more trub/yeast cake?
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Old 08-21-2007, 12:28 PM   #1
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Default AG = more trub/yeast cake?

I brewed my first AG brews a week ago and last night I racked the Stone IPA clone to a clearing tank and dry hopped it. MAN there was A LOT of yeast and trub on the bottom of the fermentor. It was crazy. When it was all racked over the trub line was at the one gallon mark on the bucket. I have never got even half that much with the extract brews.

Anyone else notice this?


Oh, and the brew tasted amazing.

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Old 08-21-2007, 12:36 PM   #2
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from what i've heard, this is pretty common. i know it happened to me when i made the switch to AG versus extract.

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Old 08-21-2007, 01:33 PM   #3
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I noticed that on my first AG batch. If I'm not mistaken, that extra trub is from the grain particulate. Maybe I'm 100% wrong, but I can't think of anything else that differs from PM or extract. Then again, it might be some kind of molecular issue that someone who knows more about it can explain here and make me look like a retard

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Old 08-21-2007, 01:36 PM   #4
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Quote:
Originally Posted by Evan!
I noticed that on my first AG batch. If I'm not mistaken, that extra trub is from the grain particulate. Maybe I'm 100% wrong, but I can't think of anything else that differs from PM or extract. Then again, it might be some kind of molecular issue that someone who knows more about it can explain here and make me look like a retard
Well, there are also more proteins present in an AG batch than in extract like the hot and cold break. More of that material would result in more trub.
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Old 08-21-2007, 01:48 PM   #5
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I always see more trub with AG. Proteins, grain bits &, I suspect, more and bigger yeast because of the increased level of nutrients.

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Old 08-21-2007, 03:12 PM   #6
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I noticed the difference too, but in the brewpot instead of the primary. I also used a whirfloc tablet with my first ag and ended up leaving about a gallon of proteins, etc in the bottom of my brewpot (5 gal batch).

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