Author Topic: Fermentation Temperatures  (Read 552 times)

Offline etbrew

  • Cellarman
  • **
  • Posts: 88
    • View Profile
Fermentation Temperatures
« on: July 27, 2010, 05:43:52 PM »
I have an IPA fermenting right now and it's the first batch I have tried to really control the temperature.  The carboy is in a swamp cooler that I've been able to maintain in the lower 60s.  My question is should I leave it in the lower 60s through out primary and secondary fermentation (I'm dry hopping in secondary) or should I let the temperature rise after primary fermentation is complete? 


Offline hokerer

  • I spend way too much time on the AHA forum
  • ********
  • Posts: 2634
  • Manassas, VA
    • View Profile
Re: Fermentation Temperatures
« Reply #1 on: July 27, 2010, 05:58:53 PM »
It's really up to you.  Keeping the temp down is probably the best but the most important time to keep the temp under control is during the really vigorous part of fermemtation as that's when there's the most risk of fusels and such.  Once that's passed, it's much less important (but obviously don't let the temps get ridiculous).
Joe

Offline majorvices

  • Global Moderator
  • Official Poobah of No Life.
  • *****
  • Posts: 6306
  • Polka. If its too loud you're too young.
    • View Profile
    • Yellowhammer Brewing Company
Re: Fermentation Temperatures
« Reply #2 on: July 27, 2010, 06:13:59 PM »
The most critical time to monitor temp during fermentation is the first 72 hours or so. Most of the esters and fusels are created while the cells are dividing and after this time period there should not be much cell division. So you can relax the temp control somewhat - just don;t go crazy. (high 60s/low 70s, ideally).
Keith Y.
Self appointed "All Grain" section pruner

Offline bonjour

  • Administrator
  • Senior Brewmaster
  • *****
  • Posts: 1771
  • Troy, MI, 37mi, 60.9deg AR
    • View Profile
Re: Fermentation Temperatures
« Reply #3 on: July 27, 2010, 07:49:37 PM »
+1
Fred Bonjour
Co-Chair Mashing in Michigan 2014 AHA Conference in Grand Rapids, Michigan
AHA Governing Committee; AHA Conference, Club Support & Web Subcommittees



Everything under 1.100 is a 'session' beer ;)

Offline etbrew

  • Cellarman
  • **
  • Posts: 88
    • View Profile
Re: Fermentation Temperatures
« Reply #4 on: July 28, 2010, 03:23:16 PM »
Thanks for the info.