New Giveaway - Wort Monster Conical Fermenter!

Home Brew Forums > Home Brewing Beer > Fermentation & Yeast > How soon to diacetyl rest ?




Reply
 
LinkBack Thread Tools Display Modes
Old 01-25-2011, 12:09 AM   #1
wired247
Feedback Score: 1 reviews
Recipes 
 
Join Date: Dec 2010
Location: The Dalles, OR
Posts: 249
Liked 5 Times on 5 Posts

Default How soon to diacetyl rest ?

Ive never brewed a Lager before but I gave it a shot over the weekend. Starting gravity was 1.058 . Two days into it I'm down to 1.025 and its still fermenting hard. I'm using S-23 saflager yeast from the pack into the wort. I am running the brew at 49 degrees in the chest freezer. Like i said Ive never done a lager before and the ferment seems crazy fast to me but I aerate with O2 through a stone so this seems to be what my Ales do as well. Anyway is this the time to pull the carboy out for a diacetyl rest?



__________________

Former Cellarmaster Pyramid Ales Kalama, WA
Former Worker Drone Strohs Rainier Brewing, Seattle
Current home brewer

wired247 is offline
MattGuk Likes This 
Reply With Quote Quick reply to this message
Old 01-25-2011, 12:19 AM   #2
Yooper
Ale's What Cures You!
HBT_ADMIN.png
Feedback Score: 0 reviews
 
Yooper's Avatar
Recipes 
 
Join Date: Jun 2006
Location: Upper Michigan
Posts: 58,656
Liked 3862 Times on 2823 Posts
Likes Given: 646

Default

Quote:
Originally Posted by wired247 View Post
Ive never brewed a Lager before but I gave it a shot over the weekend. Starting gravity was 1.058 . Two days into it I'm down to 1.025 and its still fermenting hard. I'm using S-23 saflager yeast from the pack into the wort. I am running the brew at 49 degrees in the chest freezer. Like i said Ive never done a lager before and the ferment seems crazy fast to me but I aerate with O2 through a stone so this seems to be what my Ales do as well. Anyway is this the time to pull the carboy out for a diacetyl rest?
You can either do it when you're about 75% of the way to Fg (about 1.018-1.020) or wait until visual clues show that it's active but slowing down some. If you miss that period, and do it later, it'll probably still be fine. The thought is just to do it before the yeast go dormant.

Sometimes you don't even need a diacetyl rest- if you pitch cold, do a long primary, and don't use a notorious diacetyl producer, for example- but it never hurts to do one.


__________________
Broken Leg Brewery
Giving beer a leg to stand on since 2006
Yooper is offline
 
Reply With Quote Quick reply to this message
Old 01-25-2011, 05:47 AM   #3
emjay
HBT_SUPPORTER.png
Feedback Score: 1 reviews
Recipes 
 
Join Date: Jan 2011
Location: Toronto, Ontario
Posts: 12,692
Liked 1711 Times on 1600 Posts
Likes Given: 1

Default

I thought yeast was pretty good at taking care of diacetyl and other off-flavors even when flocculated, no? Hence, AB's practice of using Beechwood chips to create more surface area for flocc'd yeast to be in contact with the beer.

__________________
emjay is offline
 
Reply With Quote Quick reply to this message
Old 01-25-2011, 12:41 PM   #4
Skinner
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2010
Location: Essex, Ontario
Posts: 41
Default

I just did my first lager with S-23. Went from 1.062 to 1.018 in about 6 days at 50F. I planned to d-rest it that day but something came up. The next day it was at 1.015 and I started the d-rest at 62F or so. Tonight it's into the fridge for a few weeks lagering. I was surprised at how fast the S-23 fermented out. I pitched 2 rehydrated packages into 50-ish wort and it was going strong after about 24 hours.

I'm anxious to taste the final results as this is my first lager in a LONG time.

Cheers!
K

__________________

Primary 1 - "March in May Cream Ale"
Primary 2 - empty
Bottled - "Four Ones Alt"
Kegged - "666 - The Number of the Wheat"
Crying Over - "Triple K Lager" that went down the drain

Skinner is offline
 
Reply With Quote Quick reply to this message
Old 01-25-2011, 12:50 PM   #5
Torg
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2009
Location: DFW, TX
Posts: 152
Liked 4 Times on 4 Posts
Likes Given: 1

Default

I usually do it between the primary and secondary fermentation. Mainly because I have to rack it to empty the fermenter. Essentially it is nothing more then waiting to put the secondary in the lagerator.

Sometimes I go to drink the beer and realize it could use a rest. Again the solution is easy. Take the keg out of the kegerator and let it sit. Generally about a day is good enough for both. And I have taken kegs from my kegerator (most call it a beer fridge) and forgotten it in the garrage in a Texas summer over a weekend. After cooling it back down it was still fine. And my garage easily gets into the 100's in the summer.



__________________
Torg is offline
 
Reply With Quote Quick reply to this message
Reply


Quick Reply
Message:
Options
Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Diacetyl rest for my first Lager DanPoch Fermentation & Yeast 15 01-02-2012 03:36 PM
What happens with a diacetyl rest when not necessary? DirtyPolock Fermentation & Yeast 3 12-05-2010 10:15 PM
diacetyl rest brewyourbrews Fermentation & Yeast 4 09-10-2010 01:52 AM
Diacetyl Rest asdtexas Fermentation & Yeast 1 08-26-2010 10:11 PM
Diacetyl rest now or later chode720 Fermentation & Yeast 2 12-24-2009 11:23 AM