Infection? Vinegar-smell - Home Brew Forums
Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > Infection? Vinegar-smell
Cool Brewing Corny 5G & Mini Giveaway

Reply
 
Thread Tools
Old 07-25-2012, 04:55 AM   #1
Steve-n-Son
Recipes 
 
Join Date: May 2012
Location: Croton-on-Hudson, NY
Posts: 18
Likes Given: 3


So I was brewing my third batch of beer to date, an Imperial pale ale from a brewer's best kit. OG 1.079. After a week from brew day I opened the primary to take a reading and I saw some things on the surface of the beer that I hadn't seen before. I took a wiff and is smelled very vinegary and stung my nose (though I've been led to believe that's co2). I put it in the secondary and a week later I tasted it before bottling. It didn't taste sour or musky, just like beer. I had sanitized all my equipment thoroughly using star-sans.
FG was 1.018.

I was hoping that someone would be able to tell me if these are signs of a bacterial infection.

I've posted 4 pics of the beer after a week in the primary and another one of the beer sitting in the bottling bucket a week after that, where there was a film on the beer which I skimmed off before bottling.

Any help is greatly appreciated!



 
Reply With Quote
Old 07-25-2012, 04:58 AM   #2
emjay
Recipes 
 
Join Date: Jan 2011
Location: Toronto, Ontario
Posts: 12,776
Liked 1719 Times on 1606 Posts
Likes Given: 1


I find acetaldehyde often gives a vinegary aroma that's not present in the taste. It's often because the beer is just too young, in my experience.

An infection can't be ruled out, but I wouldn't worry about it for now.



 
Reply With Quote
Old 07-25-2012, 05:23 AM   #3
Steve-n-Son
Recipes 
 
Join Date: May 2012
Location: Croton-on-Hudson, NY
Posts: 18
Likes Given: 3


Whoops, here are the images
Click image for larger version

Name:	IMG-20120719-00075.jpg
Views:	593
Size:	80.4 KB
ID:	69578   Click image for larger version

Name:	IMG-20120719-00080.jpg
Views:	350
Size:	53.7 KB
ID:	69579   Click image for larger version

Name:	IMG-20120719-00081.jpg
Views:	345
Size:	58.5 KB
ID:	69580   Click image for larger version

Name:	IMG-20120719-00083.jpg
Views:	381
Size:	35.3 KB
ID:	69581   Click image for larger version

Name:	IMG-20120724-00085.jpg
Views:	374
Size:	29.6 KB
ID:	69582  


 
Reply With Quote
Old 07-25-2012, 07:02 AM   #4
theveganbrewer
Recipes 
 
Join Date: Sep 2011
Location: Beaverton, OR
Posts: 1,918
Liked 295 Times on 209 Posts
Likes Given: 265


I have never seen #4 picture, so maybe someone else has, but 1-3 look like yeast to me, no infection. In fact, my beer looks like that now, dry yeast type.
__________________
-Retired Homebrewer

 
Reply With Quote
Old 07-25-2012, 07:04 AM   #5
theveganbrewer
Recipes 
 
Join Date: Sep 2011
Location: Beaverton, OR
Posts: 1,918
Liked 295 Times on 209 Posts
Likes Given: 265


Here is a thread on oily-residue. http://www.homebrewtalk.com/f37/oily-residue-48341/
__________________
-Retired Homebrewer

 
Reply With Quote
Old 07-25-2012, 07:09 AM   #6
Ryush806
HBT_LIFETIMESUPPORTER.png
 
Ryush806's Avatar
Recipes 
 
Join Date: Sep 2010
Location: Shreveport, Louisiana
Posts: 786
Liked 92 Times on 64 Posts
Likes Given: 23


All of your pictures look normal and I've seen the exact same thing in my beer. #1-3 are yeast rafts. Certain strains will do this. In #4 the sheen is left over from either the StarSan or high hopping rate. I've heard both explanations but don't know for sure which is true. Either way your beer is mostly likely fine. Go ahead and let it carb and try one after a few weeks. Let us know how it turns out!
__________________
Beer is proof that God loves us and wants us to be happy.
- Benjamin Franklin (and I don't care if this quote has been largely discredited/misquoted...I like it!)

Beer, if drank with moderation, softens the temper, cheers the spirit and promotes health.
- Thomas Jefferson

 
Reply With Quote
Old 07-25-2012, 07:18 AM   #7
daksin
HBT_SUPPORTER.png
 
daksin's Avatar
Recipes 
 
Join Date: Aug 2011
Location: San Diego, CA
Posts: 4,589
Liked 348 Times on 302 Posts
Likes Given: 363


your beer looks super clean. You are just fine!
__________________
I can't be arsed to keep up this list of what's in the fermenters, but hey, check out the cool brewery I own!

twitter.com/2kidsbrewing .. facebook.com/2kidsbrewing .. 2kidsbrewing.com

 
Reply With Quote
Old 07-25-2012, 06:13 PM   #8
Steve-n-Son
Recipes 
 
Join Date: May 2012
Location: Croton-on-Hudson, NY
Posts: 18
Likes Given: 3


Well that's some reassuring advice. Thanks to all repliers, I'll let youknow how it turns out!

 
Reply With Quote
Old 08-24-2012, 06:59 PM   #9
Steve-n-Son
Recipes 
 
Join Date: May 2012
Location: Croton-on-Hudson, NY
Posts: 18
Likes Given: 3


The beer is has been bottle conditioned for 3 weeks now and it's a little flat and otherwise great! Thanks for the guidance, and cheers!

-Steve

 
Reply With Quote
Old 08-24-2012, 08:13 PM   #10
Ryush806
HBT_LIFETIMESUPPORTER.png
 
Ryush806's Avatar
Recipes 
 
Join Date: Sep 2010
Location: Shreveport, Louisiana
Posts: 786
Liked 92 Times on 64 Posts
Likes Given: 23


Quote:
Originally Posted by Steve-n-Son
The beer is has been bottle conditioned for 3 weeks now and it's a little flat and otherwise great! Thanks for the guidance, and cheers!

-Steve
Good news! Bigger beers like that can take a while to fully carbonate.


__________________
Beer is proof that God loves us and wants us to be happy.
- Benjamin Franklin (and I don't care if this quote has been largely discredited/misquoted...I like it!)

Beer, if drank with moderation, softens the temper, cheers the spirit and promotes health.
- Thomas Jefferson

 
Reply With Quote
Reply

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
First Brew Vinegar smell GJ_9 Beginners Beer Brewing Forum 10 01-20-2012 07:53 PM
Vinegar smell Norlin Beginners Beer Brewing Forum 6 12-08-2011 07:46 PM
Vinegar smell ReeseAllen Beginners Beer Brewing Forum 6 02-01-2010 07:42 AM
Vinegar smell (kind of) dadsmakinbeeragain Beginners Beer Brewing Forum 8 12-05-2008 02:04 PM
Bacterial Infection - Look/Smell tbone Beginners Beer Brewing Forum 2 05-13-2007 11:51 AM


Forum Jump