Quantcast

Larger Brewing In The Garage, Unstable Temps.

Aussie Home Brewer

Help Support Aussie Home Brewer:

hijax

Well-Known Member
Joined
9/2/10
Messages
45
Reaction score
0
Hey all.

I am wanting to start putting down a few largers and not sure how the unstable, low temps will effect the beer. I'm down in tassie and the garage where I brew sits at a pretty stable 10 degrees for about 85% of the day. But at around 4 or 5 am can drop as low as 3 degrees.

Just wondering what possible effects this may have on the fermentation, will it stall it with a larger yeast? Will it kick back in again when the temp rises?

Any comment/suggestions would be much appreciated.
 

Clutch

Brew your own beer, you'll save money.
Joined
2/7/11
Messages
723
Reaction score
38
Thermal mass should mean that the temp of the wort will take longer to drop, am I right?
 

Nick JD

Blah Blah Blah
Joined
4/11/08
Messages
7,322
Reaction score
453
Any comment/suggestions would be much appreciated.
Lager only has an R at the end.

Fermentation of a large amount of liquid behaves like a thermal buffer. The fermenter will be the average temperature of the room + a degree or two due to yeast's exothermic activity.
 

hijax

Well-Known Member
Joined
9/2/10
Messages
45
Reaction score
0
Good point. I didn't think of that!
 

yum beer

Not in the house, you've got a shed..
Joined
12/3/11
Messages
2,239
Reaction score
422
brew baby, brew.
 

cam89brewer

Well-Known Member
Joined
2/10/11
Messages
559
Reaction score
0
I agree. You will be fine to brew at those temps, make the most of it and save power!!
 

Brewman_

AHB Sponsor
AHB Sponsor
Joined
28/9/07
Messages
1,465
Reaction score
635
Yeh the temp is right.
But as you mention the temperature fluctuates, and yes thermal inertia is very good, but you should try to minimise the fluctuation if you can. Try to insulate the fermenter to minimise this if you can.

Fear.
 

kdaust

Well-Known Member
Joined
2/8/11
Messages
106
Reaction score
0
Yeh the temp is right.
But as you mention the temperature fluctuates, and yes thermal inertia is very good, but you should try to minimise the fluctuation if you can. Try to insulate the fermenter to minimise this if you can.

Fear.
After it's come down to temp of course.

My laundry is the same at the moment. Lager yeast is chillin in its hood at 10degC.
 

Mike L'Itorus

Well-Known Member
Joined
5/6/12
Messages
160
Reaction score
2
Lager only has an R at the end.

Fermentation of a large amount of liquid behaves like a thermal buffer. The fermenter will be the average temperature of the room + a degree or two due to yeast's exothermic activity.
I'm so pissed of at the moment. 'Cos I agree with Nick. Boo hiss, there's a first. <_<

"I am currently drinking LAGER".
"My cock is much LARGER than Nicks' cock".


Big difference. Very big. Very, very big.

Re the temp: as others have stated, thermal mass plays a part. Consider: Half a cup of coffee left on a bench in a 10C room. Consider further: a 10L bucket of hot water left on the same bench. Which cools first? The coffee. Much less liquid, much less thermal mass.....How long does it take a bottle of coke to get down to drinking temperature in the fridge in the middle of summe?? (Nudge, Nudge......nudge hard enough, and you'll realise that you probably already have a fair idea of the answer).

If you average 10C, other than for 2-3 hours, where it gets lower (down to 2 or 3), the least it will likely get down to is....off the top of my head, pure guess....mebbe....7 or 8???C. Healthy pitch, and it should be fine.

Red_Cock__160x120_.jpg
 

mondestrunken

Well-Known Member
Joined
5/2/10
Messages
276
Reaction score
74
So, I have the same problem at the moment.

During rainy/overcast nights the garage temperature stays pretty constant at around 10 degrees. But on clear nights, the outside temperature can get down to -4, -5 at the moment :blink: , which means 3-5 degrees inside the garage in the morning.

I noticed fermentation slows down appreciably on cold nights.

I've set up a heat pad on one of those light timers, which turns on for a couple of hours during the middle of the night.

It seems to be working pretty well so far.

I'm thinking of putting some insulation in the garage roof, but I'm not sure I can justify it...
 

tiprya

Well-Known Member
Joined
4/5/11
Messages
568
Reaction score
59
Why not just hook the heat pad up to a STC-1000 or similar, to keep the brew at exactly 10?
 

thylacine

Well-Known Member
Joined
21/11/08
Messages
487
Reaction score
31
So, I have the same problem at the moment.

During rainy/overcast nights the garage temperature stays pretty constant at around 10 degrees. But on clear nights, the outside temperature can get down to -4, -5 at the moment :blink: , which means 3-5 degrees inside the garage in the morning.

I noticed fermentation slows down appreciably on cold nights.

I've set up a heat pad on one of those light timers, which turns on for a couple of hours during the middle of the night.

It seems to be working pretty well so far.

I'm thinking of putting some insulation in the garage roof, but I'm not sure I can justify it...


Colin at LHBS in Kambah currently has fully assembled temperature controllers, that both heat or cool, for seventy-one dollars.
 

hijax

Well-Known Member
Joined
9/2/10
Messages
45
Reaction score
0
Thanks very much for the feedback and grammar lessons.
Much appreciated!

Time to go brew that LAGER!
 

Plastic Man

Well-Known Member
Joined
4/11/04
Messages
483
Reaction score
0
Putting fermenter in an old fridge (non working) works well. Buffers inside from outside temp swings. Keep an eye on temp and if its getting too low wack a bottle or two of hot water in to bring up a bit.
 

mondestrunken

Well-Known Member
Joined
5/2/10
Messages
276
Reaction score
74
Colin at LHBS in Kambah currently has fully assembled temperature controllers, that both heat or cool, for seventy-one dollars.
Been there, seen them, and one of them's on my to-buy list!!!
 

Weizguy

Barley Bomber
Joined
20/11/04
Messages
4,589
Reaction score
729
Location
Medowie , NSW
Putting fermenter in an old fridge (non working) works well. Buffers inside from outside temp swings. Keep an eye on temp and if its getting too low wack a bottle or two of hot water in to bring up a bit.
+1 for the old fridge or freezer as an insulation chamber.

It's not as good as the temp-controlled environment, but at least it a temp-mitigated environment.
 

Latest posts

Top