Spike Brewing Giveaway - New v3 Kettle

Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > Question about d-rest
Thread Tools
Old 12-11-2012, 09:56 PM   #1
Feedback Score: 0 reviews
Join Date: Nov 2012
Posts: 5
Default Question about d-rest

I'm brewing my first lager and was wondering if doing your rest too late has any negative effects on the beer. I raised the temperate to 68 two days ago but I think fermentation was already done should I just transfer now and drop the temp back down?

trosk is offline
Reply With Quote
Old 12-12-2012, 10:53 AM   #2
Feedback Score: 0 reviews
Join Date: Jul 2009
Location: Scranton
Posts: 957
Liked 53 Times on 50 Posts
Likes Given: 6


I don't believe so. Even though fermentation may be complete, the yeast will still be able to clean up the diacetyl. Give it a few more days.

Brody's Brew House

Primary: Sweet Potato Saison(
Seconary: Don't use one, generally
Kegged: Scottish Strong Ale
Planned: Either a Porter or an AIPA. Possibly a RIS.

"For a quart of ale is a dish for a king." - Shakespeare
hercher is offline
Reply With Quote
Old 12-12-2012, 11:52 AM   #3
Feedback Score: 0 reviews
Join Date: Jan 2012
Location: West Lafayette, IN
Posts: 1,216
Liked 129 Times on 111 Posts
Likes Given: 137


I doubt it can have any negative effects compared to not doing the late D-rest.

My reasoning is that active lager yeast at high temperatures produce less than optimal output. For a D-rest, the other effects (cleaning diacetyl) are more important than avoiding the small amount of ester/whatever production.

If it's too late, the only risk is that too much yeast dropped out, so it may not be as effective a D-rest as it could have been. It'll likely still do some good. Many lagers don't even need the rest (though some, like the Bock I just raised temperature on, certainly do).
zeg is offline
Reply With Quote
Old 01-13-2013, 05:53 PM   #4
Feedback Score: 0 reviews
Join Date: Oct 2012
Posts: 15

I'm on my first lager as well (5 gal Maibock with wyeast bohemian) and pitched my starter at 46 degrees, which is the same temp as the current fermentation is taking place at. When I do my d-rest, how high should I raise the temp and how long should I keep it that high? Also, can I continue to lager at 46 degrees or should I be lagering at a lower temp? My basement back room holds 45-50 degrees easily, but I could open the windows if I needed it colder.
mdtwnj is offline
Reply With Quote

Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
d-rest question Bigapinnc Fermentation & Yeast 5 11-30-2012 12:37 AM
D-rest question OhCrap Beginners Beer Brewing Forum 19 05-19-2012 11:33 PM
Diacetyl rest question Toivo Fermentation & Yeast 14 05-08-2012 01:05 PM
D-rest question Wino24 Fermentation & Yeast 9 03-06-2012 03:54 PM
D-rest question? baer19d General Techniques 5 05-01-2009 05:19 PM

Forum Jump