Get your HBT Growlers, Shirts and Membership before the Rush!


Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > Black metallic flakes/material in copper counterflow chiller
Reply
 
LinkBack Thread Tools
Old 11-26-2013, 02:08 AM   #1
camcdonald1
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jan 2013
Posts: 1
Default Black metallic flakes/material in copper counterflow chiller

Wondering if anyone has encountered what I'm experiencing with my new homemade counterflow chiller. After I finished building it I ran boiling vinegar water through it for about ten minutes, then straight water for another ten minutes. About a week later before brew day I ran five gallons of Star San through it into a carboy. After it finished draining into the carboy I noticed a bunch of metallic looking flakes floating in the solution. I dumped the Star San and flushed the cfc with water in both directions for about ten minutes. While flushing the first runnings spat out some very dark stuff that I can only imagine would be the same particulate I found in the carboy that collected the sanitizing solution when I ran out through the cfc. Puzzled, I started over. Ran water both ways and confirmed no metallic looking flakes came out of the chiller. I made a fresh batch of Star San per the manufacturers direction and ran it through the copper chiller. Again it produced the black flakes in the downstream carboy. Could the acid in the sanitizing be reacting with the new copper? Any thoughts?

__________________
camcdonald1 is offline
 
Reply With Quote Quick reply to this message
Old 11-26-2013, 02:14 AM   #2
MaxStout
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
MaxStout's Avatar
Recipes 
 
Join Date: Mar 2013
Location: Minneapolis, MN
Posts: 1,716
Liked 454 Times on 292 Posts
Likes Given: 109

Default

The Starsan didn't react and create the flakes. It probably loosened existing copper oxide from the inside surfaces, something the plain water wouldn't do. Keep repeating the Starsan flushing cycle until no more debris comes out.

__________________
MaxStout is offline
 
Reply With Quote Quick reply to this message
Old 11-26-2013, 01:18 PM   #3
patthebrewer
Manasquan River Brewing LLC
HBT_SUPPORTER.png
Feedback Score: 0 reviews
 
patthebrewer's Avatar
Recipes 
 
Join Date: Sep 2012
Location: , allenwood, nj
Posts: 686
Liked 55 Times on 48 Posts
Likes Given: 141

Default

Quote:
Originally Posted by MaxStout View Post
The Starsan didn't react and create the flakes. It probably loosened existing copper oxide from the inside surfaces, something the plain water wouldn't do. Keep repeating the Starsan flushing cycle until no more debris comes out.
+1

Star san really cleans copper up nicely!
__________________
Manasquan River Brewing LLC
patthebrewer 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
Copper-in-PVC Counterflow Chiller mrjofus1959 Equipment/Sanitation 22 06-18-2014 04:56 AM
All copper diy counterflow chiller? Islandboy85 Chillers and Stir Plates 23 03-04-2012 08:06 PM
For Sale - FS: Counterflow chiller 25" copper hamilt22 For Sale 0 12-07-2011 02:24 AM
Counterflow chiller with 1/2" copper mcgeebc Equipment/Sanitation 4 09-28-2011 07:19 AM
5/8" OD Copper Counterflow Chiller Beerman213 Chillers and Stir Plates 15 07-09-2011 02:32 PM



Newest Threads

LATEST SPONSOR DEALS