Spike Brewing 12.5 Conical Fermenter Giveaway - Enter Now!

Home Brew Forums > Home Brewing Beer > General Techniques > Odd off flavor -- thoughts?

Reply
 
LinkBack Thread Tools
Old 04-18-2012, 11:51 AM   #1
mcduhamel
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2011
Location: Shaker Heights, OH
Posts: 14
Default Odd off flavor -- thoughts?

I've been brewing for 15 years, and during that entire time, I've almost always detected a certain flavor in beer I keg that I don't see in the same beer if I bottle it. The flavor is very hard to describe: it's almost reminiscent of keg lube (which I know is supposed to be flavorless), vaguely metallic (but not the dreaded copper penny flavor). Sometimes it's quite subtle; other times it hits me over the head. I've detected it in new kegs and used kegs. It shows up whether I force carbonate or keg condition. It appears in almost every style of beer I brew, but is more prominent in pale ales and bitters than it is in saisons and Belgians. I obsessively disassemble my kegs before use, clean with PBW, sanitize with StarSan, and flush with CO2 before transfer. Has anyone else ever experienced anything like this, and does anyone have any thoughts regarding what's going on?

__________________
mcduhamel is offline
 
Reply With Quote Quick reply to this message
Old 04-18-2012, 12:05 PM   #2
jfrizzell
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2007
Location: Iowa
Posts: 691
Liked 10 Times on 9 Posts
Likes Given: 4

Default

What water are you using? Are you filtering? Doing any water adjustments?

__________________

Primary: Pliney the Elder Clone
Kegged: Tank 7 / Saison Brett

http://untappd.com/abbayeduchatnoir

jfrizzell is offline
 
Reply With Quote Quick reply to this message
Old 04-18-2012, 02:54 PM   #3
GLWIII
Feedback Score: 0 reviews
Recipes 
 
Join Date: May 2008
Location: Dayton, Ohio
Posts: 241
Liked 3 Times on 2 Posts

Default

I had a similar problem, although a bit different off flavor, and took the same steps as you. I finally changed my keg line and that solved the problem right on the spot. Not saying that is your issue, but since you didn't mention it in your post I thought I would throw it out there.

__________________
GLWIII is offline
 
Reply With Quote Quick reply to this message
Old 04-18-2012, 04:39 PM   #4
mcduhamel
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2011
Location: Shaker Heights, OH
Posts: 14
Default

Quote:
Originally Posted by jfrizzell View Post
What water are you using? Are you filtering? Doing any water adjustments?
I'm usually buying spring water and making no adjustments. That, though, is an interesting point.
__________________
mcduhamel is offline
 
Reply With Quote Quick reply to this message
Old 04-18-2012, 07:38 PM   #5
Lennie
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2008
Location: Hannibal, MO
Posts: 555
Liked 10 Times on 10 Posts
Likes Given: 1

Default

Water wouldn't really explain the difference between kegging and bottling would it?

__________________
Lennie is offline
 
Reply With Quote Quick reply to this message
Old 04-19-2012, 04:41 PM   #6
audger
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2011
Location: ., Connecticut
Posts: 1,497
Liked 40 Times on 40 Posts
Likes Given: 1

Default

Quote:
Originally Posted by Lennie View Post
Water wouldn't really explain the difference between kegging and bottling would it?
probably not.

can you describe the flavor any other way than comparing it to something that is flavorless (ever tasted keg lube? there is actually no flavor- only a certain mouth feel)? otherwise it seems pretty obvious theres your problem- kegs have keg lube on them, bottles dont. that would be a reason all your kegged beers 'taste like it' and bottles dont...
__________________
audger is offline
 
Reply With Quote Quick reply to this message
Old 04-19-2012, 08:23 PM   #7
CS223
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2012
Location: Gainesville, Florida
Posts: 254
Liked 35 Times on 10 Posts
Likes Given: 8

Default

I'm dealing with the same subtle metallic issue at the moment but with zero brewing experience to call upon, same fanatical cleaning regime with the same chems, RO brewing water. Could it be that the bottles are aging at room temperature and the kegs are kept at serving temperature after fermentation? Think I'm going to bottle a few and let them sit for 2 weeks at room temp, refrigerate two more bottles immediately and then compare them with the refrigerated keg.

__________________
CS223 is offline
 
Reply With Quote Quick reply to this message
Old 04-19-2012, 08:49 PM   #8
Lennie
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2008
Location: Hannibal, MO
Posts: 555
Liked 10 Times on 10 Posts
Likes Given: 1

Default

I've had a metallic flavor issue before with my Belgian dubbel. I think mine may have been due to oxidation, although one can't rule out water or pH or yeast health as potential causes.

Its possible that kegging can result in more oxidation, depending on how you are handling the beer.

__________________
Lennie is offline
 
Reply With Quote Quick reply to this message
Old 04-20-2012, 03:34 AM   #9
Chuck_Swillery
Feedback Score: 0 reviews
Recipes 
 
Join Date: Dec 2009
Location: Traverse City, MI
Posts: 342
Default

This is WAY out there but using a metal spoon to stir and/or aluminum brew kettle? If either is of cheap metal you could get some leaching but you'd likely notice that in both kegged and bottled.

__________________

Will run for beer...

Chuck_Swillery is offline
 
Reply With Quote Quick reply to this message
Old 04-20-2012, 03:36 AM   #10
jfrizzell
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2007
Location: Iowa
Posts: 691
Liked 10 Times on 9 Posts
Likes Given: 4

Default

Are you purging the head space in your kegs after you hookup the gas? Oxidation perhaps?

__________________

Primary: Pliney the Elder Clone
Kegged: Tank 7 / Saison Brett

http://untappd.com/abbayeduchatnoir

jfrizzell is offline
 
Reply With Quote Quick reply to this message
Reply


Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
curious about your thoughts peaktopview General Techniques 3 03-09-2012 03:22 PM
two thoughts about when to bottle/keg? drummer4gc General Techniques 4 12-30-2011 08:48 PM
odd looking head but great flavor- Your thoughts Beertk General Techniques 18 09-04-2011 05:29 PM
Off Flavor Advice (Pool flavor?) Mishkan General Techniques 12 06-17-2011 11:32 PM
Thoughts from a hop head justbrewit General Techniques 11 12-19-2005 12:57 AM