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Old 08-04-2007, 11:29 PM   #1
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Default Keg Cleaning

Hey All,

Just acquired 2 used ball-lock cornies, and i was wondering what's the best way to clean a keg? Is it safe to store a keg with Iodophor sanitizer, or will that mess with the rubber seals?

I'm definitely going to replace the seals and clean them inside and out before going into "service" (read apfelwein!).

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Old 08-05-2007, 04:30 AM   #2
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what i do with every keg i aquire:

1. rinse out superficial stuff.
2. overnight PBW in hot water
3. take apart keg, and visually check everything (gaskets, poppets, dip tubes, etc), and scrub with bar keeper's friend anything that the PBW didn't get.
4. rinse well.
5. quick pressure test with star san spray over all connection areas
6. overnight pressure test with co2 tank regulator to check for slow leaks.

yes, you can store iodophor in the keg without issue, thing is, from what i've read, iodophor is fairly volatile, and will not be an effective sanitizer after maybe a week or so. i would recommend star san, and you can check the effectiveness with pH strips.

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Old 08-05-2007, 04:40 AM   #3
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Quote:
Originally Posted by gnef
...you can store iodophor in the keg without issue, thing is, from what i've read, iodophor is fairly volatile, and will not be an effective sanitizer after maybe a week or so...i would recommend star san, and you can check the effectiveness with pH strips.
Iodophor is only active for 24 hours.

Overnight soaks of Star San in kegs is not recommended because it will pit stainless.
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Old 08-05-2007, 05:22 AM   #4
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i had thought that star san was mostly phosphoric acid, which is also in soda? isn't soda also a very low pH? i know bleach will pit stainless, but not so sure of phosphoric acid.

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Old 08-05-2007, 01:47 PM   #5
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Quote:
Originally Posted by gnef
what i do with every keg i aquire:

1. rinse out superficial stuff.
2. overnight PBW in hot water
3. take apart keg, and visually check everything (gaskets, poppets, dip tubes, etc), and scrub with bar keeper's friend anything that the PBW didn't get.
4. rinse well.
5. quick pressure test with star san spray over all connection areas
6. overnight pressure test with co2 tank regulator to check for slow leaks.
I do the same. I sanitize with about 2 quarts of Starsan solution. I pour it in, close the keg and charge it with 20 PSI. I then connect a cobra tap and squirt some in the sink to make sure the inside of my dip tube is covered. Next I roll the keg on its side a few time then set it on its head. I wait a few minutes and then repeat the rolling and set right side up. After a couple minutes I pour the Starsan back in the bucket and I then depress the poppet on the beer out connector to drain the starsan there and turn it upside down in my sanitized (sprayed with starsan) stainless sink. It's ready for kegging or I drop the lid in some starsan and then pick it up, shake it, and put it back on and charge the keg with 20 pounds and put it away. It's ready to keg later.
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Old 08-05-2007, 01:54 PM   #6
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Quote:
Originally Posted by gnef
i had thought that star san was mostly phosphoric acid, which is also in soda? isn't soda also a very low pH? i know bleach will pit stainless, but not so sure of phosphoric acid.
Not really sure. It's just something I remember reading on this forum.

Anyone else know the REAL deal?
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Old 08-05-2007, 07:59 PM   #7
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The makers of Star San claim it will only pit soft metals (not SS). I have left Star San in a keg for a few days, and didn't notice any pitting. But I am not any braver than that yet!

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Old 08-05-2007, 09:30 PM   #8
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I've kept Star San in a keg for several months with no problem.

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Old 08-05-2007, 09:42 PM   #9
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Quote:
Originally Posted by Buford
I've kept Star San in a keg for several months with no problem.
same here - no problems with several month soak
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Old 08-14-2007, 02:18 PM   #10
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Anyone use Oxy Free instead of PBW to clean their kegs? Will Oxy Free pit a keg if it soaks overnight?

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