Home Brew Forums > Home Brewing Beer > Recipes/Ingredients > Lactobacillus question.
Reply
 
Thread Tools
Old 01-22-2014, 07:30 AM   #1
electrolight
Feedback Score: 2 reviews
Recipes 
 
Join Date: Sep 2013
Posts: 256
Liked 61 Times on 39 Posts
Likes Given: 850

Default Lactobacillus question.

We know high hop content or high abv content will thwart Lactobacillus. But I was wondering do either of those kill off the Lacto? Or does it go dormant like yeast usually does?

Also, I know the abv cut off is about 8%. Anyone know the IBU cutoff?

Thanks.


electrolight is offline
 
Reply With Quote
Old 01-22-2014, 01:26 PM   #2
CadillacAndy
Senior Member
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
CadillacAndy's Avatar
Recipes 
 
Join Date: Oct 2011
Location: Pittsburgh, PA
Posts: 1,081
Liked 112 Times on 93 Posts
Likes Given: 44

Default

Quote:
Originally Posted by electrolight View Post
We know high hop content or high abv content will thwart Lactobacillus. But I was wondering do either of those kill off the Lacto? Or does it go dormant like yeast usually does?

Also, I know the abv cut off is about 8%. Anyone know the IBU cutoff?

Thanks.
I know that hops will only keep it from reproducing - the oils and resins coat the cells.

As far as the alcohol goes, I would take an educated guess and say that that would kill it. Alcohol is known to kill bacteria in other settings (alcohol based hand sanitizer, for example). I'm not sure what the percentage has to be, but it would most likely be dependent on the strain of lacto.

pH level is another consideration - another educated guess, but since things like Starsan are acid based sanitizers (albeit with other ingredients) I'd say that low pH will also kill it. I'm sure some strains are more tolerant than others with this too, but I think a pH of something like 3.0 will take care of them.

As always, if someone knows differently, please correct me.
__________________
Looking for a way to give and receive beer feedback using online BJCP score sheets?
Check out - http://onlinebeerscores.com/ and my blog at http://onlinebeerscores.com/blog
CadillacAndy is offline
 
Reply With Quote
Reply


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Wyeast 5335 (Lactobacillus) Experience/Question brewinginct Fermentation & Yeast 0 07-12-2013 04:30 AM
Lactobacillus (Wyeast 5335) fermentation question julian81 Fermentation & Yeast 30 01-18-2013 01:17 AM
Lactobacillus Question (Berliner Weisse) rhern053 Fermentation & Yeast 1 01-07-2012 09:23 PM
Question about Wyeast 4335/5335 (lactobacillus) UKAlum97 Beginners Beer Brewing Forum 6 02-06-2010 09:46 PM
Lactobacillus jager Recipes/Ingredients 10 11-14-2006 03:44 PM


Forum Jump

Newest Threads

LATEST SPONSOR DEALS