Happy HolidaySs Giveaway - Last Sponsor Giveaway of the Year!

Come Enter the BrewDeals/FastFerment Giveaway!


Home Brew Forums > Home Brewing Beer > Fermentation & Yeast > Max time for diacetyl rest?
Reply
 
LinkBack Thread Tools
Old 06-29-2010, 08:51 PM   #1
Ed_
HBT_SUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2009
Location: Birmingham Alabama
Posts: 73
Likes Given: 1

Default Max time for diacetyl rest?

Do any of you know if there is max amount of time that you should raise the temp on a lager for a diacetyl rest? I was thinking of letting an ale go through primary while my lager was going through a rest since the temps would be pretty much ideal for both but I'm not sure if the one to two weeks is too long for the lager.

Any help would be appreciated.

__________________

6.5 gal Primary 1: empty
6.5 gal Primary 2: empty
5 gal Secondary 1: Amarillo Pale Ale
5 gal Secondary 2: empty


On Tap
Keg 1: American Lagar
Keg 2:
Keg 3:
Keg 4:


On Deck:
Black Hole of Calcutta IPA v4

Ed_ is offline
 
Reply With Quote Quick reply to this message
Old 06-29-2010, 09:11 PM   #2
Revvy
Post Hoc Ergo Propter Hoc
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Revvy's Avatar
Recipes 
 
Join Date: Dec 2007
Location: "Detroitish" Michigan
Posts: 40,804
Liked 2767 Times on 1657 Posts
Likes Given: 3485

Default

A lot of people, myself included do a 72 hour rest.

__________________

Like my snazzy new avatar? Get Sons of Zymurgy swag, here, and brew with the best.

Revvy's one of the cool reverends. He has a Harley and a t-shirt that says on the back "If you can read this, the bitch was Raptured. - Madman

I gotta tell ya, just between us girls, that Revvy is HOT. Very tall, gorgeous grey hair and a terrific smile. He's very good looking in person, with a charismatic personality... he drives like a ****ing maniac! - YooperBrew

Revvy is offline
 
Reply With Quote Quick reply to this message
Old 06-30-2010, 02:02 AM   #3
menschmaschine
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2007
Location: Delaware
Posts: 3,278
Liked 33 Times on 27 Posts

Default

I wouldn't be comfortable doing a D-rest that long, but I'm particular about my lagers. I would at least transfer it to the lagering vessel after the normal timeframe (2-3 days) to get it off the yeast. Increased temperatures can accelerate yeast cell decay, potentially causing off-flavors.

__________________

END TRANSMISSION

menschmaschine is offline
 
Reply With Quote Quick reply to this message
Old 07-01-2010, 10:46 PM   #4
zman
HBT_LIFETIMESUPPORTER.png
Feedback Score: 2 reviews
 
zman's Avatar
Recipes 
 
Join Date: Apr 2008
Location: Denver.
Posts: 2,609
Liked 15 Times on 15 Posts
Likes Given: 15

Default

I did Mutilated1's bitburger clone, http://www.homebrewtalk.com/f58/cats...ilsner-100625/, and was not super careful about checking hydro readings. After 1.5 weeks it was down to 1.012. I tasted the sample and did not notice any off flavors related to Diacetyl but I did a rest on Tuesday morning and I am going to secondary it tonight and start lagering. Is it possible for off flavors to develop when lagering or am I pretty much good to go?

__________________
www.kroc.org
zman is offline
 
Reply With Quote Quick reply to this message
Old 07-02-2010, 01:38 AM   #5
menschmaschine
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2007
Location: Delaware
Posts: 3,278
Liked 33 Times on 27 Posts

Default

Quote:
Originally Posted by zman View Post
Is it possible for off flavors to develop when lagering or am I pretty much good to go?
It's unlikely, but there are a couple possibilities. Diacetyl can develop if oxygen is introduced, such as from splashing during transfer. The other possibility is a developing infection. So, stay sanitary and transfer the beer "quietly" and you should be good to go.
__________________

END TRANSMISSION

menschmaschine is offline
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
What else does a diacetyl rest do? menschmaschine Brew Science 13 02-12-2012 02:37 PM
1st time Diacetyl Rest Question albeerquerquean General Techniques 2 02-27-2010 09:41 PM
Is this the right time for my Diacetyl rest? kingoslo Beginners Beer Brewing Forum 7 10-21-2009 05:06 PM
Diacetyl rest time, skunking risk Finn General Techniques 12 02-11-2008 05:28 AM
Diacetyl Rest Glibbidy General Techniques 10 08-30-2006 02:18 AM



Newest Threads

LATEST SPONSOR DEALS