Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > Lager Temperature Swings.
Reply
 
Thread Tools
Old 02-11-2013, 02:37 PM   #1
Aunt_Ester
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jul 2011
Location: Charlottesville, Virginia
Posts: 239
Liked 16 Times on 13 Posts
Likes Given: 39

Default Lager Temperature Swings.

So, my fridge is dead. Basement only gets to 58. And primary fermentation is complete.

I had the crazy idea to put the carboy on my deck, but the highs are 65 and the lows are 35.

Anyone know if large temperature swings will have a negative effect on the processs?


__________________
Quote:
Originally Posted by mattlsull View Post
There are actually techniques that some use that are an open fermentation where they basically ferment in a bucket covered in aluminu, alumini, aluemin... tin foil.
Aunt_Ester is offline
 
Reply With Quote
Old 02-11-2013, 03:04 PM   #2
thadius856
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
thadius856's Avatar
Recipes 
 
Join Date: Dec 2012
Location: Marysville
Posts: 2,277
Liked 666 Times on 260 Posts
Likes Given: 155

Default

A water bath would help stabilize the swings a bit.

Have you considered the "Swamp Cooler" type jacket device in the basement with some frozen 2L bottles?


__________________
Was this post helpful? Don't forget to click 'Like'!

Thadius Miller, Project Manager -> RaspberryPints

Before you build a keezer, look at this!
Chest Freezer Spec Sheets and Layout Drawings (15 models and counting)
thadius856 is offline
 
Reply With Quote
Old 02-11-2013, 03:07 PM   #3
PJoyce85
Member
HBT_SUPPORTER.png
Feedback Score: 3 reviews
 
PJoyce85's Avatar
Recipes 
 
Join Date: Jan 2013
Location: Mainz, Germany
Posts: 1,017
Liked 304 Times on 177 Posts
Likes Given: 3

Default

If you are at the point where you are starting the lagering, I would leave it in the basement at 58 until you can get a new fridge.

While 58 is too high for lagering, you will have less negative effects (if any at all) leaving it at 58 than letting the temp swing back and forth.
PJoyce85 is offline
 
Reply With Quote
Old 02-11-2013, 03:21 PM   #4
WoodlandBrew
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
WoodlandBrew's Avatar
Recipes 
 
Join Date: Oct 2012
Location: Malden, MA
Posts: 2,188
Liked 232 Times on 198 Posts
Likes Given: 59

Default

Here is a plot of what you are asking about:
http://woodlandbrew.blogspot.com/201...g-outside.html

Generally, a five gallon batch of beer in a water bath of 5 gallons will have half the temperature swing of the air temperature.

I put your weather into a spread sheet I use for this sort of thing. Chart is attached.

Looks like you'll have to move it back inside around the 16th.
Click image for larger version

Name:	Charlottesville, VA.jpg
Views:	122
Size:	27.7 KB
ID:	100404  
__________________
The 2nd edition is now available: Brewing Engineering
Woodland Brewing Research Blog Applied Science for Better Beer.
WoodlandBrew is offline
 
Reply With Quote
Old 02-12-2013, 04:19 AM   #5
Aunt_Ester
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jul 2011
Location: Charlottesville, Virginia
Posts: 239
Liked 16 Times on 13 Posts
Likes Given: 39

Default

Quote:
Originally Posted by WoodlandBrew
Here is a plot of what you are asking about:
http://woodlandbrew.blogspot.com/201...g-outside.html

Generally, a five gallon batch of beer in a water bath of 5 gallons will have half the temperature swing of the air temperature.

I put your weather into a spread sheet I use for this sort of thing. Chart is attached.

Looks like you'll have to move it back inside around the 16th.
This is phenomenal! Thanks for the help!


__________________
Quote:
Originally Posted by mattlsull View Post
There are actually techniques that some use that are an open fermentation where they basically ferment in a bucket covered in aluminu, alumini, aluemin... tin foil.
Aunt_Ester is offline
 
Reply With Quote
Reply


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Temperature Swings...to the cold side? TheJasonT Fermentation & Yeast 1 12-01-2012 07:31 AM
Temperature Swings - effect on beer(kegged/bottled) TheKeg81 General Beer Discussion 0 09-06-2012 06:06 PM
lager temperature kingjimbeer General Beer Discussion 2 07-18-2012 03:00 PM
Temperature Swings after Primary Fermentation Completed? R2-D2 Beginners Beer Brewing Forum 3 02-20-2009 05:18 PM
Temperature swings and brewing mjn12 Beginners Beer Brewing Forum 15 11-16-2008 04:50 AM


Forum Jump

Newest Threads

LATEST SPONSOR DEALS