Lactobacillus delbrueckii - Home Brew Forums
Register Now For Free!

Home Brew Forums > Home Brewing Beer > Lambic & Wild Brewing > Lactobacillus delbrueckii

Reply
 
Thread Tools
Old 03-24-2012, 11:07 PM   #1
rexbanner
 
rexbanner's Avatar
Recipes 
 
Nov 2008
DC
Posts: 1,382
Liked 98 Times on 70 Posts



I pitched some l. delbrueckii into unfermented, unhopped wort and have it sitting in a glass jug in a heated water bath at 85 degrees. It's been two days and I see no signs of anything. What is going on? Will I see any visible signs?

Also, what is the difference between delbrueckii and brevus?
__________________
Peep my nanobrewery: http://crookedrunbrewing.com

Crooked Run Brewing: Seek Truth, Cherish Nature

Makers of Red Kolsch, Storm, and Shadow of Truth

 
Reply With Quote
Old 03-24-2012, 11:37 PM   #2
DannPM
Recipes 
 
Jan 2011
Pittsburg, KS
Posts: 1,867
Liked 23 Times on 20 Posts


I'm not sure if this strain produces Co2 or not. I use it in cheese making to acidify the milk and I've never seen any signs of it producing Co2.
__________________
Time to have some fun

 
Reply With Quote
Old 03-25-2012, 12:18 AM   #3
SethMasterFlex
Recipes 
 
Sep 2010
Chicago, IL
Posts: 186
Liked 2 Times on 2 Posts


My wyeast lacto starter sat for 2 weeks in a pint of apple juice. It didn't show much activity at all, but showed visible growth at the end of the 2 weeks. Upon pitching it in 5.5 gallons of Berliner weisse wort (no yeast added at this point) it was bubbling vigorously, like seltzer vigorously, to the point where I could hear it. I only used it that time, but let it ride for a week or two at elevated temps and then pitch.

 
Reply With Quote
Old 03-25-2012, 02:25 AM   #4
rexbanner
 
rexbanner's Avatar
Recipes 
 
Nov 2008
DC
Posts: 1,382
Liked 98 Times on 70 Posts


Quote:
Originally Posted by SethMasterFlex View Post
My wyeast lacto starter sat for 2 weeks in a pint of apple juice. It didn't show much activity at all, but showed visible growth at the end of the 2 weeks. Upon pitching it in 5.5 gallons of Berliner weisse wort (no yeast added at this point) it was bubbling vigorously, like seltzer vigorously, to the point where I could hear it. I only used it that time, but let it ride for a week or two at elevated temps and then pitch.
Interesting. I've heard that it produces CO2, sounds like there is no mistaking it. Did any crud form on the surface?
__________________
Peep my nanobrewery: http://crookedrunbrewing.com

Crooked Run Brewing: Seek Truth, Cherish Nature

Makers of Red Kolsch, Storm, and Shadow of Truth

 
Reply With Quote
Old 03-25-2012, 03:46 AM   #5
Carter5112
 
Carter5112's Avatar
Recipes 
 
Jun 2010
Nashville, Tennessee
Posts: 124
Liked 3 Times on 3 Posts


I believe Delbruekii is the white labs strain and it does not produce alcohol whereas the Brevus is Wyeast and it does.

 
Reply With Quote
Old 03-25-2012, 04:36 AM   #6
ReverseApacheMaster
Registered User
Recipes 
 
Jul 2009
Keller, Texas
Posts: 4,882
Liked 254 Times on 196 Posts


Take the temperature up to 110-120. Give it a couple of days at that temperature. I don't know if you will get CO2 production but you'll definitely get some form of krausen.

 
Reply With Quote
Old 03-25-2012, 07:20 AM   #7
weremichael
 
weremichael's Avatar
Recipes 
 
Feb 2006
Posts: 259
Liked 17 Times on 12 Posts


Check it, does it taste sour? If yes: add yeast.

 
Reply With Quote
Old 03-25-2012, 03:21 PM   #8
rexbanner
 
rexbanner's Avatar
Recipes 
 
Nov 2008
DC
Posts: 1,382
Liked 98 Times on 70 Posts


Quote:
Originally Posted by ReverseApacheMaster View Post
Take the temperature up to 110-120. Give it a couple of days at that temperature. I don't know if you will get CO2 production but you'll definitely get some form of krausen.
Well it started showing the faintest signs of krausen last night. I woke up this morning and it had a thick layer of krausen on it. I'm wondering whether it is wild yeast. I was pretty good about sanitation, but it looks like yeast krausen. Is that normal?
__________________
Peep my nanobrewery: http://crookedrunbrewing.com

Crooked Run Brewing: Seek Truth, Cherish Nature

Makers of Red Kolsch, Storm, and Shadow of Truth

 
Reply With Quote
Old 03-25-2012, 04:00 PM   #9
ReverseApacheMaster
Registered User
Recipes 
 
Jul 2009
Keller, Texas
Posts: 4,882
Liked 254 Times on 196 Posts


Yeah, when I do sour wort it always gets a brown scummy kind of krausen. I wouldn't be worried.

 
Reply With Quote
Old 03-25-2012, 04:20 PM   #10
rexbanner
 
rexbanner's Avatar
Recipes 
 
Nov 2008
DC
Posts: 1,382
Liked 98 Times on 70 Posts


Quote:
Originally Posted by ReverseApacheMaster View Post
Yeah, when I do sour wort it always gets a brown scummy kind of krausen. I wouldn't be worried.
Cool. And if in fact there is no wild yeast, then delbrueckii definitely makes CO2.
__________________
Peep my nanobrewery: http://crookedrunbrewing.com

Crooked Run Brewing: Seek Truth, Cherish Nature

Makers of Red Kolsch, Storm, and Shadow of Truth

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Lactobacillus Fermentation El_Exorcisto Lambic & Wild Brewing 8 08-06-2014 01:02 AM
Lactobacillus Brevis mcnewcp Lambic & Wild Brewing 29 01-31-2012 01:05 AM
Lactobacillus not present? Madbyrd Lambic & Wild Brewing 8 09-06-2011 08:17 PM
Pediococcus and Lactobacillus - Together? Apoxbrew Lambic & Wild Brewing 21 05-03-2011 12:19 PM
When to Add 5335 Lactobacillus?? Jsta Porter Lambic & Wild Brewing 4 04-08-2009 02:31 PM


Forum Jump