Temp fluctuation for lager fermentation - Home Brew Forums
Register Now For Free!

Home Brew Forums > Home Brewing Beer > Fermentation & Yeast > Temp fluctuation for lager fermentation

Thread Tools
Old 12-01-2012, 05:01 PM   #1
Dec 2012
Posts: 4
Liked 1 Times on 1 Posts

I want to brew a Mexican lager where the suggested fermentation temp is in the low 50s. The average temp in my garage right now is right on the mark but the temp will fluctuate between 45-65. Will this create a bad beer or will I be ok?

Reply With Quote
Old 12-02-2012, 11:41 PM   #2
Jul 2011
virginia beach, virginia
Posts: 984
Liked 18 Times on 18 Posts

No this is not ok. You need to maintain a 50deg temp throughout out the fermentation.
On tap: World wide lager, Dopelbock, Apfelwein, American Wheat, DFH 90, Dortmunder export, Skeeterpee, Chinook/Citra ipa.
Waiting on a tap. Maibock, Two Hearted, Pliny the elder, Chimay White, Roggenbrier, DFH60
On Deck:
Hiding in dark corner: Lambic, Flanders red, Oud Bruin, DFH 120(in bottles)

Reply With Quote
Old 12-02-2012, 11:47 PM   #3
Nov 2012
Posts: 3,683
Liked 692 Times on 583 Posts

You might do a search for ghetto lagering on these forums - I have seen folks who use winter to their advantage to brew and lager beer using ambient temperatures. I'm sure your results will vary and probably not be repeatable, but that doesn't mean you'll end up with crap. It's still beer

sudbuster Likes This 
Reply With Quote
Old 12-02-2012, 11:52 PM   #4
daksin's Avatar
Aug 2011
San Diego, CA
Posts: 4,617
Liked 358 Times on 312 Posts

Yea, you need to maintain a constant temperature. 65F for any period of time is going to ruin a lager, and cooling it back down to 45 is going to put all those yeast back to sleep. Even with ales, you need to keep the temp constant, but with lagers it is even more imperative.
I can't be arsed to keep up this list of what's in the fermenters, but hey, check out the cool brewery I own!

twitter.com/2kidsbrewing .. facebook.com/2kidsbrewing .. 2kidsbrewing.com

Reply With Quote
Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
Temp + OR - Fluctuation karljrberno Fermentation & Yeast 1 01-25-2012 10:17 AM
Temp fluctuation & Pilsner fermentation toast Fermentation & Yeast 2 12-26-2011 07:59 PM
Temp Fluctuation JeffStewart Fermentation & Yeast 5 03-07-2011 11:23 PM
big temp fluctuation monty3777 Fermentation & Yeast 1 12-15-2009 09:05 PM
Temp fluctuation Richard Beginners Beer Brewing Forum 17 04-30-2007 02:34 PM

Forum Jump