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Old 03-31-2009, 04:16 AM   #1
noduckla
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Default Cleaning Copper Wort Chiller

I am new to brewing and the forum with only a couple of batches under my belt. The forum has been a wealth of knowledge and it is time to make my first post.

The homemade immersion chiller I recently acquired was not used in a while and has green tarnish on a few of the coils. Does anyone know of a good cleaner that will take care of the tarnish without leaving a residue that will not make me blind in the process?

Thanks!

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Old 03-31-2009, 04:25 AM   #2
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Boil it in some vinegar and water. A good soak in star san should clean it up too. Just remember to toss out the star san when you are done.

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Old 03-31-2009, 06:21 AM   #3
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+1 on the vinegar or starsan soak. both are acids and will eat the green patina off, if you have a stubborn spot use some steel wool on it.

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Old 03-31-2009, 01:10 PM   #4
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Since an IC gets thrown in the boil at 15 mins, how important is it to have all the 'patina' off? I have some greenish tinge around my solder joints that won't scrub off, I just leave it as is. Is that a problem?

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Old 03-31-2009, 02:50 PM   #5
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if you scrub it use a green 3m pad don't use steel wool . +1 on starsan or vinegar will remove it.

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Old 03-31-2009, 02:59 PM   #6
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The green stuff is toxic. You should try to get it off.

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Old 03-31-2009, 03:12 PM   #7
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Quote:
Originally Posted by illin8 View Post
Since an IC gets thrown in the boil at 15 mins, how important is it to have all the 'patina' off? I have some greenish tinge around my solder joints that won't scrub off, I just leave it as is. Is that a problem?
try some emery cloth on it .
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Old 03-31-2009, 03:19 PM   #8
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Regular "tarnish" and discoloration is fine and will come off in the boil. BUT, anything with a greenish color you DON'T want dissolving in your acidic wort. As McKBrew said, it is some vile stuff that isn't considered healthy.

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Old 03-31-2009, 03:31 PM   #9
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Wow...been scouring the forum for about a year and never even heard of this. Point taken, thanks!

BTW...what causes this greenish tarnish?

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Old 03-31-2009, 04:00 PM   #10
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Quote:
Originally Posted by illin8 View Post
BTW...what causes this greenish tarnish?
Oxidation. I've found if I clean the chiller quickly after brewing and store in a dry place, that I don't have any problems. The copper dulls in between uses, but that dull patina is actually good.
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