Help Support Aussie Homebrewer by donating:

  1. We have implemented the ability to gift someone a Supporting Membership now! When you access the Upgrade page there is now a 'Gift' button. Once you click that you can enter a username to gift an account Upgrade to. Great way to help support this forum plus give some kudos to anyone who has helped you.
    Dismiss Notice

Fermentation temp control in winter

Discussion in 'General Brewing Techniques' started by Muz, 1/8/19.

 

  1. Muz

    Well-Known Member

    Joined:
    14/11/17
    Messages:
    86
    Likes Received:
    12
    Gender:
    Male
    Posted 1/8/19
    Just wondering if anyone controls temp in winter with just a temp controller (MKII, Inkbird etc.) and a heat belt? In other words can you allow the ambient temperature to cool things down.

    I'm in Melbourne and my garage is pretty cold around the clock. I'm thinking the temp never gets above 14 degrees. Is this enough for cooling and then I use a heat belt and temp controller for heating. Or does the temp generated during early/peak fermention take to temp too high without a fridge/freezer/glycol chiller etc.

    Cheers,
     
  2. dkril

    Well-Known Member

    Joined:
    5/8/07
    Messages:
    92
    Likes Received:
    42
    Posted 1/8/19
    Do you mean in a fridge/similar fermentation chamber but without active cooling (i.e. fridge unplugged); or just sitting the fermenter on the garage floor/table with the heat belt?
     
  3. Moad

    Well-Known Member

    Joined:
    21/12/12
    Messages:
    1,731
    Likes Received:
    620
    Gender:
    Male
    Location:
    Newcastle, Australia
    Posted 1/8/19
    Fermentation is exothermic meaning the process itself generates heat. So it can ramp up past the temperature of the air outside which is why it is still a good idea to ferment in a temp controlled environment.

    If you don't have temp control, I am sure you will be fine it just isn't ideal
     
  4. eggs82

    Member

    Joined:
    29/7/19
    Messages:
    6
    Likes Received:
    1
    Gender:
    Male
    Location:
    Sydney
    Posted 1/8/19
    Sorry for the noob question... Is it possible to just use an old fridge with a thermostat to control the cooling. No need for any heating element? Obviously in summer it'll be fine, but just thinking when my garage is 14 and below in winter. Do you being inside a fridge would help control that even without a heating element.
     
  5. JasonS

    New Member

    Joined:
    15/11/18
    Messages:
    2
    Likes Received:
    1
    Gender:
    Male
    Location:
    32 Geographe Way
    Posted 2/8/19
    I also use an old fridge as a fermentation chamber and tried disconnecting the cooling on the fridge as my initial temperature was about 14 degrees and I wanted to ferment at 18 degrees. Big mistake, within 24 hours, temperature had shot up to 24 degrees. Admittedly, I did have 2 cornies going simultaneously for my fermentation vessels, so between that and the fridge's insulation, things got hot very quickly.
     
    eggs82 likes this.
  6. Garfield

    Well-Known Member

    Joined:
    3/7/15
    Messages:
    957
    Likes Received:
    268
    Gender:
    Male
    Posted 2/8/19
    Yes it's possible. It will generate its own heat depending on fermentation vigor. I've observed ten degrees above ambient through exothermic mass.

    If you struggle with low temp, consider switching to lager yeast strains which ferment nicely at 12c
     
    eggs82 and wide eyed and legless like this.
  7. ABG

    Well-Known Member

    Joined:
    26/5/18
    Messages:
    196
    Likes Received:
    113
    Gender:
    Male
    Location:
    Sydney
    Posted 2/8/19
    It depends on the yeast strains that you're using. You could easily use just cooling in winter if you're using a lager yeast. The results will be very disappointing if you're using a saison or abbey yeast. What are you trying to brew and what yeast are you thinking of using?
     

Share This Page