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Old 10-16-2011, 06:49 PM   #1
terrapinj
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Default PBW pitted my aluminum pot after soaking

I know PBW says it's safe for aluminum but after soaking overnight my aluminum kettle now has tons of pits all throughout the inside

i figured the soak would prob remove the oxidized layer and i'd have to reboil water in it but I just went to fill fit strike water to start heating and noticed tons of little pits all over

FYI to those using aluminum - don't soak overnight with PBW

I was going to be ordering a SS 42qt soon so not the end of the world but now I have to push back my brewday for another week

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Old 10-16-2011, 08:10 PM   #2
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I read you should not use any oxidizng cleaner in Al. It oxidizes to quickly.

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Old 10-17-2011, 08:41 PM   #3
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i've washed the same BK several times with PBW (safe on aluminum per their instructions) but the long soak didn't treat it so well

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Old 10-18-2011, 12:16 PM   #4
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Quote:
Originally Posted by terrapinj View Post
I was going to be ordering a SS 42qt soon so not the end of the world but now I have to push back my brewday for another week
Why can't you use the pot as is? Unless the pits are so deep you fear a leak? Oxidize and use, no?
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Old 10-18-2011, 12:45 PM   #5
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I soaked an aluminum kettle in Oxi-clean over night and it turned it black. Once I boiled water in it the black went away.

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Old 10-18-2011, 02:49 PM   #6
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http://www.midwestsupplies.com/media...ch%20Sheet.pdf

PBW is similar to oxiclean. oxygen + aluminum = aluminum oxide.

no cleaner takes 24+ hours to work. the only reason for soaking overnight is because you dont feel like cleaning it now. what does that get you? a discolored pot.

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Why can't you use the pot as is? Unless the pits are so deep you fear a leak? Oxidize and use, no?
yep, the only thing wrong with it is now its not very attractive. it does still function as a pot and is safe to use.
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Old 10-18-2011, 03:12 PM   #7
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Yeah, don't do that. A quick scrub with the stuff is OK, but nothing more than 5mins. Oxygen based cleaners will eat a hole right through aluminum given enough time.

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Old 10-18-2011, 04:51 PM   #8
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Originally Posted by audger View Post
http://www.midwestsupplies.com/media...ch%20Sheet.pdf

PBW is similar to oxiclean. oxygen + aluminum = aluminum oxide.

no cleaner takes 24+ hours to work. the only reason for soaking overnight is because you dont feel like cleaning it now. what does that get you? a discolored pot.


yep, the only thing wrong with it is now its not very attractive. it does still function as a pot and is safe to use.
this is direct from PBW spec sheet - it's very common for people to soak kegs, etc with pbw overnight to remove tough buildup

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P.B.W. is an excellent choice as a soak cleaner because it does not require excessive heat as do most caustic based cleaners. This product has cleaned brass and copper filters, and industrial aluminum surfaces successfully.
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