HBT 2015 Big Giveaway - Enter Now

Huge Supporting Membership Discounts - 20% Off

Home Brew Forums > Home Brewing Beer > General Techniques > can copper immersion chiller impart off flavors?
Reply
 
LinkBack Thread Tools
Old 04-11-2012, 02:07 AM   #1
brewingbarrister
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2012
Location: FREDERICKSBURG, VA
Posts: 59
Liked 1 Times on 1 Posts

Default can copper immersion chiller impart off flavors?

The reason I ask is that I let mine soak in water and bleach solution and it now has a few small green spots. Will this impart any off flavors in my wort? Thanks!

__________________
brewingbarrister is offline
 
Reply With Quote Quick reply to this message
Old 04-11-2012, 02:20 AM   #2
chumpsteak
Feedback Score: 0 reviews
Recipes 
 
Join Date: May 2011
Location: Meridian, ID
Posts: 852
Liked 95 Times on 79 Posts
Likes Given: 13

Default

don't do that....rinse it with the hose before and after you use it to chill and always stick it in the kettle with 15 minutes left in the boil. Shouldn't ever have to soak it in anything.

At this point I'm not sure what you should do, but if it has green spots it sounds like it's tarnished. I don't think I'd put that in my beer.

__________________
Well lucky you, the devil made you look....
chumpsteak is offline
 
Reply With Quote Quick reply to this message
Old 04-11-2012, 02:33 AM   #3
BigEd
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2004
Posts: 2,423
Liked 130 Times on 113 Posts
Likes Given: 23

Default

Quote:
Originally Posted by brewingbarrister View Post
The reason I ask is that I let mine soak in water and bleach solution
Why are you doing that? I wouldn't use bleach on copper. Don't use it on stainless steel either BTW.

That green stuff is copper salts (copper chloride, copper sulfate) from corrosion accelerated by the bleach solution. If it's only a few small spots it is probably not enough to worry about. A small amount of copper will dissolve in the hot wort even from a clean chiller.

For future reference, after use rinse the chiller with clean, hot water. If any crud is sticking wipe it with a sponge or scrubby if necessary along with a good brewery cleaner like PBW. Rinse it again and put it away. To make it shiny before using rub it down with an acidic solution like Star San or distilled vinegar. Rinse and drop it in the brew kettle. An immersion chiller just needs to be clean before use, not sanitized. Five or ten minutes in the kettle before flameout will take care of that.
__________________
BigEd is offline
 
Reply With Quote Quick reply to this message
Old 04-11-2012, 02:41 AM   #4
ArcaneXor
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2007
Posts: 4,523
Liked 102 Times on 94 Posts
Likes Given: 30

Default

Quote:
Originally Posted by BigEd View Post
To make it shiny before using rub it down with an acidic solution like Star San or distilled vinegar.
Making it shiny removes the oxide layer from the surface of the chiller, leaching more of the copper into the beer.

http://en.wikipedia.org/wiki/Copper_toxicity

Also

http://www.byo.com/stories/projects-...or-homebrewers
__________________
ArcaneXor is offline
 
Reply With Quote Quick reply to this message
Old 04-11-2012, 03:19 AM   #5
BigEd
Feedback Score: 0 reviews
Recipes 
 
Join Date: Nov 2004
Posts: 2,423
Liked 130 Times on 113 Posts
Likes Given: 23

Default

Quote:
Originally Posted by ArcaneXor View Post
Making it shiny removes the oxide layer from the surface of the chiller, leaching more of the copper into the beer.

http://en.wikipedia.org/wiki/Copper_toxicity

Also

http://www.byo.com/stories/projects-...or-homebrewers
I understand that, but I took it as the original poster was concerned with having a clean and probably shiny chiller. Even if you don't clean the oxide pre-use the wort has a low enough pH to do it anyway.
__________________
BigEd is offline
 
Reply With Quote Quick reply to this message
Old 04-11-2012, 03:22 AM   #6
brewingbarrister
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2012
Location: FREDERICKSBURG, VA
Posts: 59
Liked 1 Times on 1 Posts

Default

Thanks for the article. It looks like I can try and use vinegar solution to clean and never do that again. I had a feeling it was bad...

__________________
brewingbarrister is offline
 
Reply With Quote Quick reply to this message
Old 04-11-2012, 03:25 AM   #7
lschiavo
Drinks Beer
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
lschiavo's Avatar
Recipes 
 
Join Date: Sep 2009
Location: Surrounded by Yoopers
Posts: 4,212
Liked 875 Times on 585 Posts
Likes Given: 629

Default

Quote:
Originally Posted by BigEd View Post
I understand that, but I took it as the original poster was concerned with having a clean and probably shiny chiller. Even if you don't clean the oxide pre-use the wort has a low enough pH to do it anyway.
Very true. I am amazed how clean all the copper in my MLT and BK gets after a brew. It oxidizes before the next brew and then gets shiny again. If you want your IC to be shiny try a soak in a water/vinegar solution.
__________________
lschiavo is offline
 
Reply With Quote Quick reply to this message
Old 04-12-2012, 01:36 AM   #8
MaddBaggins
I feel Hoppy!
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
MaddBaggins's Avatar
Recipes 
 
Join Date: Jul 2011
Location: Tucson
Posts: 1,023
Liked 199 Times on 144 Posts
Likes Given: 213

Default

I rinse mine off and drop it in the kettle with about 10min left in the boil. I rinse again when the wort is cool. That's it.

__________________
MaddBaggins is offline
 
Reply With Quote Quick reply to this message
Old 04-12-2012, 01:44 AM   #9
kh54s10
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
kh54s10's Avatar
Recipes 
 
Join Date: Aug 2011
Location: Tiverton, Rhode Island
Posts: 7,629
Liked 785 Times on 664 Posts
Likes Given: 204

Default

I would imagine that if you were to boil a pot of water for 15 minutes or a half hour with the chiller in it you should be ok for the next brew.

__________________
kh54s10 is offline
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools




Newest Threads

LATEST SPONSOR DEALS