Changing temperature half-way through? - Home Brew Forums
Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > Changing temperature half-way through?

Reply
 
Thread Tools
Old 01-29-2013, 09:03 AM   #1
CheftonUTD
Recipes 
 
Jan 2013
Townsville, Queensland
Posts: 36
Liked 1 Times on 1 Posts



I'm new to brewing and looking for advice about temperature control. After bottling my first batch I went out and got a fridge and a second fermentor (the obsesion begins... ).
What I'm doing at the moment is planning to have one brew in the fridge (at about 20c / 68f) and the other in a makeshift swamp cooler (at about 28c / 82f ).
I started thinking today though, since everyone says that temperature is most critical during the first week(ish) of fermentation, would I be better off next time starting one earlier, leaving it in the fridge for a week or so then take it out and put the new one in it's place?

Any thoughts or ideas?
Thanks

 
Reply With Quote
Old 01-29-2013, 09:56 AM   #2
Varmintman
Recipes 
 
Mar 2012
idaho falls, idaho
Posts: 2,102
Liked 663 Times on 416 Posts


I would say it depends on the yeast and what profile you want in the beer. The 82F seems awful warm though but I tend to ferment at the lower ends of the yeasts temp range

 
Reply With Quote
Old 01-29-2013, 01:29 PM   #3
Sween
Recipes 
 
Jan 2013
Philadelphia, PA
Posts: 29
Liked 3 Times on 3 Posts


I sometimes end up second guessing myself... going from about 70 down to 60 or even 65. I move my carboys and buckets around the house depending on how and when they're fermenting.

But yeah, 82 sounds really high unless you're dealing with a belgian strong and want all those fruity flavors...

 
Reply With Quote
Old 01-29-2013, 01:48 PM   #4
mvcorliss
Recipes 
 
Mar 2011
Greenfield, MA
Posts: 198
Liked 12 Times on 11 Posts


If what you were asking is would removing the batch from the refrigerator after a week make a big difference I think the answer is no. At least in most cases. The vast majority of esters which produce the flavors from the yeast will be produced during the first few days of active fermentation. So, barring a bigger refrigerator, brewing a batch this week and fermenting at 68f, then brewing another batch next week, putting it in the refrigerator at 68f and moving the older one out to warmer place would not be too bad for most beers. Any very high gravity beers might need a little more time, and all of this assumes you are pitching the proper amount of good, clean, healthy yeast.

hth,
Michael

 
Reply With Quote
Old 01-29-2013, 04:30 PM   #5
TopherM
Recipes 
 
Mar 2011
St. Petersburg, FL
Posts: 3,975
Liked 447 Times on 353 Posts


As you stated, the most active part of fermentation is the only time when temp control is really critcal. Basically, the first 75% between OG and FG is the only place where yeast can get stressed enough to produce a noticible concentration of esters and phenols.

With a few style exceptions and exceptions for high ABV, that critical part of fermentation where temp control is necessary is over within 4-5 days.

I personally have a single temp controlled chamber, and routinely only leave beers in there for a week before I put them on a shelf at room temp to bulk condition, and I have no noticible effects or off flavors from this process.
__________________
Primary #1 - Midnight Ryeder (Midnight Wheat and Rye)
Primary #2 - Florida Weiss
Primary #3 - Kane-DOH APA (Honey Citra APA)
Secondary #1 - Downtown Flanders Brown (brewed August 2012)
Keg #1 - Raspberry Florida Weiss
Keg #2 - Cinnamon Raisin Cider
Keg #3 - NONE!
Bottled - NONE!

 
Reply With Quote
Old 01-29-2013, 10:13 PM   #6
CheftonUTD
Recipes 
 
Jan 2013
Townsville, Queensland
Posts: 36
Liked 1 Times on 1 Posts


Might give that a try next time then, thanks all for your help!

 
Reply With Quote


Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Changing temperature for new batch Crobrewer Fermentation & Yeast 6 01-23-2013 06:34 PM
changing refrigerator temperature Dara Beginners Beer Brewing Forum 3 09-07-2011 05:12 PM
BCS-460 Issue changing the temperature in state properties TimWeber Brew Stands 2 03-08-2010 02:39 PM
Affect of changing temperature of keg Jmiltime Beginners Beer Brewing Forum 5 12-06-2009 01:46 PM
Changing temperature while laggering HangDawg General Techniques 5 01-24-2008 08:15 PM


Forum Jump