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Old 05-19-2008, 06:17 PM   #1
ZacMac's Avatar
Apr 2007
Crown Point, Indiana
Posts: 108

I just brewed my first AG on Sunday and things seemed to go pretty well.
Just a general question, do AG batches have a more active fermentation then extract?
I know that a lot of factors play into this, but I was just wondering if in general if this was true. Thanks!
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Old 05-19-2008, 06:47 PM   #2
Mar 2008
Saratoga, NY
Posts: 124

Originally Posted by zacmac View Post
do AG batches have a more active fermentation then extract?
I think it has more to do with yeast type, temperatures and gravity. My AG Centennial Blonde had a average to mellow fermentation. The stout I did before this one was an extract brew that blew the top off.
Originally Posted by Revvy View Post
...I still stare lovingly at my fermenters every day.
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1. Never tell anyone everything you know
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Old 05-19-2008, 06:54 PM   #3
TwoHeadsBrewing's Avatar
Feb 2008
Chico, CA
Posts: 3,924
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Not sure...but my first two AG batches were definitely "different". My first AG was a Pale Ale and everything besides grains remained the same as my extract batch. However, the AG batch had very slow and steady fermentation which lasted well over 10 days, versus my extract batch which only took 7 days to ferment. My second AG was a wheat...again almost exactly the same as my extract batch, but just a bit more wheat compared to the 60/40 wheat/barley extract I had used previously. This AG batch had some violent fermentation and had a pretty big blowoff, while my extract batch was just very steady...the same as all of my other extract batches.

So I don't really have a good answer to your question I guess...only that I have noticed the difference in fermentation between extract and AG. Not that this is a bad thing...just drank a sixer of my first AG pale ale and it was FANTASTIC. And I took a sample of my wheat beer last too was I think fermentation was very healthy.

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Old 05-19-2008, 06:58 PM   #4
Oct 2007
Central KY
Posts: 161
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I am guessing there is a distinct difference. Just finished an AG on Mother's Day and it has been active and steady for 8 days now. Yes I took time to see mom for a few minutes!!!


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