Method for cleaning inside of kegs

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Postby ColoradoBrewer » Mon Mar 17, 2008 8:03 am

adder31 wrote:i gave it a good scrub with an SOS pad and that took off the dried stuck on layer. I have it soaking in a strong oxy clean solution, will let it sit for a few days and see where we are then. thanks for the input.
It's generally not a good idea to use SOS pads or steel wool on stainless steel. Scouring can remove the oxide layer that makes stainless steel stainless resulting in rust. Carbon steel from the pad can also rub off and adhere to the stainless causing rust. If this happens, clean the affected area with an oxalic acid based cleaner like Bar Keepers Friend or Revere Copper and Stainless Cleaner and the stainless will repassivate in a few days. If you need to scour stainless one of those 3M green scrubbies is best.
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Postby billvelek » Mon Mar 17, 2008 9:02 am

adder31 wrote:i gave it a good scrub with an SOS pad and that took off the dried stuck on layer. I have it soaking in a strong oxy clean solution, will let it sit for a few days and see where we are then. thanks for the input.
You shouldn't use an SOS pad to clean stainless steel ... at least that's what I've read a number of times. The iron in the pad will apparently somehow become incorporated with the stainless and affect it. I don't know whether it is strictly cosmetic and just discolors the nice shiney SS, or if it contributes to continuing corrosion.

Cheers.

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Postby adder31 » Mon Mar 17, 2008 10:53 am

Well, you live you learn. So after the Oxy soak I will give it a good cleaning with Bar Keepers, using a sponge, not SOS :)
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Too Extreme

Postby brewmeisterintng » Mon Mar 17, 2008 9:09 pm

Some of you are going overboard like the stuff is baked into the stainless or something. I have been kegging for a year now and have never spent more than 10 minutes on a keg which includes full disassembly. OxyClean and a small brush... done.
A theory is that the surface of your stainless has become damaged (porous) and is allowing the crud to adhere.
On a side though, are the guys that are having a tough time force or naturally carbonating? I, myself, force carbonate.
I agree with Bill... No to SOS pads. If anything, use the green pads.
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Postby adder31 » Mon Mar 17, 2008 10:48 pm

I'm converting mine into a brew kettle. Came with a kegerator I bought, couldnt tell you how long it sat empty or if the guy used it for homebrew or just a deposit keg. All I know is that when I cut the top off there was what looked like thin streaks of concrete (beer stone) on the inside walls. I did a soak in PBW and used sos pad. Now I'm soaking it in a strong oxy solution and will use a plastic scrubber and then a wash with barkeepers friend per Coloradobrewers advice to repassivate the stainless.

As far as my cornys go that I force carbonate, I have never had a beer stone or build up problem. But then, 5 gallons of beer dont last a long time around my house :D
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Postby ColoradoBrewer » Tue Mar 18, 2008 6:42 am

If what you have is beer stone, the Bar Keepers Friend will cut right through it with no problems.
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Postby adder31 » Tue Mar 18, 2008 11:57 am

Thanks for the advice Colorado. another ? When all is done, will the inside walls of the keg be stained or shiny stainless?
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Postby ColoradoBrewer » Wed Mar 19, 2008 6:34 am

The stains should be gone. How shiny the keg gets depends in part on how much elbow grease you're willing to apply. Have fun. :D
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Postby adder31 » Thu Mar 20, 2008 10:33 am

Its looking good after the soak. I rinsed and then gave it a good once over with barkeepers and a stiff plastic scrub brush (no SOS :lol: ) Now I just have to pick up a step drill bit and order a weldless ball valve setup.
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