Lactobacillus soured witbier

Homebrew Talk - Beer, Wine, Mead, & Cider Brewing Discussion Forum

Help Support Homebrew Talk - Beer, Wine, Mead, & Cider Brewing Discussion Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

smokinghole

Senior Member
HBT Supporter
Joined
Nov 11, 2009
Messages
2,910
Reaction score
146
Location
Lucid Dream Land
So I had a tube of White Labs in my fridge with plans of using it in something that I haven't got to brew yet. When I did my wit up last weekend I decided that I'd toss the lactobacillus into my 3.5ish gal portion of my 8 gal batch. I can't find a clear answer about whether or not it will stop fermenting or keep going. I'm trying to find answers even in academic papers about lactobacillus but they're all about lambics when related to beer.

So basically what I'm worried about is the lactobacillus continuing to work after bottling. I know lactobacillus is supposed to really quit reproducing around 3.8 pH. I plan on blending the two fermentors together and if the lacto has not died (which I assume it will not) will I have to pasteurize the beer? I am thinking I might just wing it throw it in bottles in a week or two and then make a concerted effort to drink it fast in case of overcarbonation. I guess I could do a little bit of an experiment. I will leave them go for three weeks then pasteurize some in the dishwasher. Plus I will check pH and do a WLD plate to check for lactobacillus.

PS I just tasted the soured fermentor and it tastes fantastic!
 
the wit was already fermented out when you added the lacto? - If thats the case I'd bet youll very little souring of the beer, the WY/WL lacto is notoriously wimpy, it shudders in fear at IBU's or alcohol and dies
 
I added it 36hours before yeast. I know they're wimpy but I think the lower IBUs helped. It's theoretical 18IBUs but realistically lower if you were to actually test the IBUs. I can taste the sourness right now actually. There is a different turbidity to the beer sitting right next (one with out lactobacillus). So I think the souring is happening or did happen.
 
You wont need to worry about the lacto during long term storage, its not gonna do much and over carbonation shouldnt be an issue
 
Back
Top