Acetobacter? - Home Brew Forums
Register Now For Free!

Home Brew Forums > Home Brewing Beer > Fermentation & Yeast > Acetobacter?

Reply
 
Thread Tools
Old 02-02-2013, 01:22 AM   #1
BlainD
Recipes 
 
Nov 2011
Killeen, tx
Posts: 254
Liked 13 Times on 8 Posts



First I'd like to say if this thread is in the wrong section I apologize and thank any moderator that does me the favor of moving it.

Went to cold crash a Belgian specialty beer tonight (wlp500) and found this floating on top. I've seen it on a two saisons I have made and assumed it was just the yeast because the beer tasted fine. So does this beer but I'm starting to see a disturbing trend. This one tastes fine as well. Cold crashing now and will bottle next week.

Acetobacter? Should I dump all my plastic stuff? I do a bleach bomb fairly regular (since the last time I saw this). Bleach and pray perhaps?

Thanks in advance for all advice/input.
Click image for larger version

Name:	image-3267126208.jpg
Views:	933
Size:	50.4 KB
ID:	98152   Click image for larger version

Name:	image-463846296.jpg
Views:	1311
Size:	58.7 KB
ID:	98153  
__________________
"Stop drinkin all that water" ~odb

 
Reply With Quote
Old 02-02-2013, 01:33 AM   #2
ColoHox
Compulsive Hand Washer
HBT_SUPPORTER.png
Recipes 
 
Oct 2011
Fort Collins, CO
Posts: 1,884
Liked 415 Times on 293 Posts


I would say it is unlikely Acetobacter if you are not tasting or smelling vinegar. There are many things that could grow as a pellicle in that fashion, yeast included. It could be something that will make your beer cloudy but you will never taste. The same thing happened to me on a few saisons as well. Bleach always seems drastic, but do what you gotta do.
__________________
Bacteria are the only culture some people have.

 
Reply With Quote
Old 02-02-2013, 01:42 AM   #3
TNGabe
Recipes 
 
Aug 2012
Posts: 6,655
Liked 2284 Times on 1539 Posts


I don't think acetobacter can form a pellicle on beer. Pellicles are often referenced as being a protective barrier against acetobacter, formed in repsonse to oxygen. I'd be concerned if I had 3 sacc only beers form pellicles. All 3 in the same fermenter? Looks like a green bucket from your pics?

Looks cool whatvere it is. If it tastes good, drink it!
__________________
The only thing worse than dumping beer is serving beer you should have dumped.

 
Reply With Quote
Old 02-02-2013, 02:43 AM   #4
BlainD
Recipes 
 
Nov 2011
Killeen, tx
Posts: 254
Liked 13 Times on 8 Posts


Quote:
Originally Posted by TNGabe View Post
I don't think acetobacter can form a pellicle on beer. Pellicles are often referenced as being a protective barrier against acetobacter, formed in repsonse to oxygen. I'd be concerned if I had 3 sacc only beers form pellicles. All 3 in the same fermenter? Looks like a green bucket from your pics?

Looks cool whatvere it is. If it tastes good, drink it!
After the first time I saw it I marked the original bucket and used it for another saison. Figured it's almost appropriate to the style to have some random funk going on. After the second time I saw it I threw the bucket out. This is a different bucket.

This bucket didn't have a good seal (no airlock bubbling). I let it ride because it was a session recipe and would only ferment a week or so and then into the secondary. Got the flu and it went three weeks..... So yeah it most likely got exposed to oxegen. Could that have caused the yeast to form a layer of pellicles?
__________________
"Stop drinkin all that water" ~odb

 
Reply With Quote
Old 02-02-2013, 02:45 AM   #5
TNGabe
Recipes 
 
Aug 2012
Posts: 6,655
Liked 2284 Times on 1539 Posts


If by yeast you mean brett, then yes. I don't think sacc ever forms a pellicle.
__________________
The only thing worse than dumping beer is serving beer you should have dumped.

 
Reply With Quote
Old 02-02-2013, 02:53 AM   #6
Calder
Recipes 
 
Mar 2010
Ohio
Posts: 7,619
Liked 634 Times on 554 Posts


Is it the same yeast; that is, have you re-used it? If so, it is probably in the yeast. I don't remember WLP500 doing that to me.

If the beer tastes fine, keep the beer. Probably some form of Lacto or Pedio; both will take a long time to show up.

Acetobacter will give you vinegar flavor very quickly. If you don't taste vinegar, then that is not it.

How do you bleach your plastics? Too high a concentration is bad. You only need about a tablespoon of bleach per gallon. Also, bleach is not instant, if you really want to clean it, leave it filled with bleach for a week. It takes time for the bleach to permeate into all the scratches.

 
Reply With Quote
Old 02-02-2013, 02:54 AM   #7
Sonnyjim
 
Sonnyjim's Avatar
Recipes 
 
Jan 2009
Madsen, Ontario
Posts: 121
Liked 12 Times on 7 Posts


Does it taste like vinegar? If so, you may have the beginning stages of acetobacter. If it is, take it out, put it in some leftover light ale, let it sit and pour your malt vinegar over your fish and chips

 
Reply With Quote
Old 02-02-2013, 02:55 AM   #8
ffaoe
Recipes 
 
Aug 2012
Moorestown, NJ
Posts: 463
Liked 79 Times on 55 Posts


its deffinitely not acetobacter. it looks to be either brett or lacto. the white bubbles look like brett but the white little streaks looks kinda like lacto. its an infection of some sort. personally, i would just ride it out and see how it ends up tasting.

 
Reply With Quote
Old 02-02-2013, 03:56 AM   #9
BlainD
Recipes 
 
Nov 2011
Killeen, tx
Posts: 254
Liked 13 Times on 8 Posts


Does not taste like vinegar. Tastes fine. I pitched a new vile into a starter so it wasn't contaminated from improper washing. I thought I might have had brett the two times before but it has never effected the finished product (at least obviously). Could this be something random and some what benign?
__________________
"Stop drinkin all that water" ~odb

 
Reply With Quote
Old 02-02-2013, 04:01 AM   #10
BlainD
Recipes 
 
Nov 2011
Killeen, tx
Posts: 254
Liked 13 Times on 8 Posts


Quote:
Originally Posted by Calder View Post
How do you bleach your plastics?
Tablespoon to a gallon. Procedure: Fill the five gallon bucket with water, place all to be bombed in the bucket,Add five tablespoons of bleach, place lid on the bucket and see bleach water come from the hole for the bung on top (and cover the top), Let sit 1 week.
__________________
"Stop drinkin all that water" ~odb

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Acetobacter Questions Goodyear General Beer Discussion 5 11-18-2012 08:08 PM
Lactobacillus? Acetobacter? ricknewsom Equipment/Sanitation 7 11-10-2012 07:53 PM
Acetobacter Problem Biscostew Equipment/Sanitation 2 07-27-2012 03:01 AM
acetobacter question kid_ak Beginners Beer Brewing Forum 4 01-11-2010 01:44 AM
Lambics and Acetobacter zoebisch01 General Techniques 2 02-28-2007 03:09 AM


Forum Jump