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03-08-2010, 07:20 PM
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#1
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Senior Member
Join Date: Jan 2010
Location: Fort Collins
Posts: 171
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Raising temperature at the end of fermentation
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So, in trying to make my american hybrid taste nice and clean for my father in law, who is a die hard BMC drinker I did a test after listening to one of the Jamil shows and 3/4 of the way through fermentation I moved the carboy upstairs into the closet (close to 70 degrees) from the basement (about 65 degrees) and I just sampled it yesterday and man, what a clean tasting beer! Tastes a hell of a lot like a petes strawberry blonde crossed with a lager.
Anyone else done this on a consitent basis? Im tempted to try it with some other beers as well.
__________________
Brewing:
Primary 1: Big Dog American Lemon Orange Session
Primary 2: Big Dog American Hybrid
Primary 3: Land Beaver Cider
Secondary 1: Trippel Clone
Secondary 2: Empty
Kegged: Larlo Imperial Chocolate Stout, Pliny the (Stronger) Bastid
Bottled: Amber Ale, Belgian Strong Ale
Note: Colors actually taken from my beers as photographed in carboys
Yeast are like day laborers; they do great work, but you don't want them hanging around when its time for dinner.
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03-08-2010, 08:30 PM
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#2
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Senior Member
Join Date: Jan 2010
Location: Baltimore, MD
Posts: 814
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I do it pretty much all the time. I ferment in a thermostat controlled freezer and when the fermentation seems to have slowed up I take it out and just let it sit in the 70 degree room. I've been getting very clean ales.
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03-08-2010, 08:58 PM
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#3
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Senior Member
Join Date: Sep 2009
Location: North Dakota
Posts: 2,525
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Yes, I do this as well. I let the bulk of my fermentation take place between 60-67 degrees typically. Once I sense fermentation nearing completion I will move it into my "conditioning room" for another week or two.
Then maybe 2-3 days before bottling I move it a cooler place to encourage floculation before bottling......
You will also find that you may get a little more consistent attenuation by letting them finish warm.
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03-09-2010, 03:45 AM
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#4
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Senior Member
Join Date: Dec 2008
Location: Eastern Oregon
Posts: 310
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Yep, I ramp them up to 70 or so about 3 to 4 days after the start of fermentation. I believe this keeps the yeast active a bit longer and they are better able to clean up some of the undesirable flavors that can be a product of fermentation.
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03-09-2010, 06:23 AM
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#5
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Member
Join Date: May 2009
Location: Westminster, CO, Colorado
Posts: 94
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Did this with my last 2 brews and my 9.5% RIS tasted CLEAN only 8 days after pitching. Pitched at 65F and brought it up a degree a day until 68F, then to 70F after the krausen had dropped.
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03-09-2010, 10:12 AM
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#6
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Senior Member
Join Date: Feb 2010
Location: Carbondale, PA
Posts: 495
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All great posts folks - thanks!
But... I am more looking for AFTER active fermentation has stopped... is the temp range different? Do I still use the yeasts temp range? Higher end or lower end? No differnce?
Thanks!
JASON
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Regards,
Jason
BOTTLED / DRINKING
Mad-Elf Inspiration, Graff
SECONDARY
Flander's Sour Red {1 Year Old on July 28, 2011}
PRIMARY
Vanilla-Almond Pumpkin Ale, Surly Furious, Triple Karmelite Clone
ON DECK
Double White
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03-09-2010, 12:40 PM
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#7
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Senior Member
Join Date: Nov 2007
Location: New Albion, State of Jefferson USA
Posts: 262
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I have been ramping up the temps of my beers by putting the fermentor in a larger bucket full of water and heating it with a fish tank heater. Works good.
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03-09-2010, 02:03 PM
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#8
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Senior Member
Join Date: Aug 2007
Location: Pensacola, FL
Posts: 396
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Just did my first controlled ale ramp this past brew and so far it's worked great. When the krausen started falling I started ramping the beer 2'F a day until I reached 68'F. My starting temp was 63'F as I wanted a VERY clean APA. General consensus on this technique is that is produces great ales  .
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Bottled - Apfelwein, Big Roasted Rocket Fuel RIS
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Kegged 3 - Bavarian Hefeweizen
Kegged 4 - Empty
Kegged 5 - Empty
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03-09-2010, 02:14 PM
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#9
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Senior Member
Join Date: Nov 2007
Posts: 3,880
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It's pretty much standard practice if you want the yeast to attenuate fully. I do it all the time. It also acts as a d-rest, resulting in a cleaner-tasting beer.
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Primary: Centennial Falcon IPA (Pro-Am #1), sLambic I
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03-09-2010, 02:57 PM
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#10
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Senior Member
Join Date: Nov 2009
Location: Asheville, NC
Posts: 2,401
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I always start my ales cool in the lower 60's and gradually raise the temp during fermentation. Starting cool reduces off flavors. Ending warm give better attenuation.
I use a fridge/heater with a dual output digital temp controller. With this setup, I have very precise control over my fermentation temps. I can dial in any temp I want and be within 1 degree of that temp.
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