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Old 10-03-2011, 10:58 PM   #1
Jan 2008
Washington, DC
Posts: 444
Liked 33 Times on 10 Posts

How long do you leave PBW is a stainless vessel for cleaning purposes (conical for example)? What about starsan? Do either have a negative effect on the metal after prolonged exposure?

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Old 10-04-2011, 01:57 AM   #2
Jan 2011
oakland, california
Posts: 3,296
Liked 162 Times on 152 Posts

not overnight it hasn't, for me anyway.

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Old 10-04-2011, 02:10 AM   #3
Sacdan's Avatar
Jul 2009
Sacramento, CA
Posts: 888
Liked 19 Times on 17 Posts

I keep my kegs full of starsan when not in use. I don't use pbw, but I have left oxyclean in for a couple of weeks occaisionally. Just make sure you clean out the residue.

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Old 10-04-2011, 05:40 AM   #4
Apr 2011
Manhattan Beach, California
Posts: 112

I've heard an interview on the brewing network with both a rep from PBW and Star-San. Both said that stainless was pretty much impervious to their product.

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Old 10-04-2011, 07:02 AM   #5
GodsStepBrother's Avatar
Apr 2009
, Texas
Posts: 1,261
Liked 25 Times on 23 Posts

I left oxy clean in two of my carboys for 3 weeks and some kind of build up formed on the inside. With some research I found out I needed to use an acid. I used some vinegar water and that did nothing, then I used star san and that did nothing. Finally I had to use caustic acid and that did it. It took 6 hours or so to dissolve the build up.

I learned my lesson, max overnight when i comes to oxy. I do not know if PBW would do that if left long enough.

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Old 10-04-2011, 10:36 AM   #6
Apr 2011
porsgrunn norway, lol
Posts: 552
Liked 7 Times on 6 Posts

Main differense between oxy and PBW is that PBW dont leave scaling residue
Nothing too interesting yet
A work in progress just like my beer

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Old 10-04-2011, 11:17 AM   #7
EdWort's Avatar
Jul 2006
Bee Cave, Texas
Posts: 11,912
Liked 348 Times on 170 Posts

Don't leave PBW in a Better Bottle for more than a few hours.

I left mine on the deck soaking and went on a trip, came back, they were all cracked & brittle.

Expensive lesson.

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Old 10-04-2011, 02:07 PM   #8
HollisBrewCo's Avatar
Feb 2010
Posts: 203
Liked 3 Times on 3 Posts

while you can leave either in a stainless vessel without damaging it I usually add my PBW solution scrub and rinse, starsan stays a bit longer as i like to make sure my conical is sanitary but you get kill within i think 30 seconds, I believe the label says 3 minutes
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