Home Brew Forums > Home Brewing Beer > Bottling/Kegging > Anyone keep Star-San in an extra keg?
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Old 09-27-2012, 09:31 PM   #11
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I recall reading somewhere (on here) that starsan wasnt good for SS...hum...anyone?
I was going to say, starsan is very acidic, and I have seen it corrode my aluminum kettle to a degree- I stored a batch in a bottling bucket, which sat inside my kettle, and the bucket leaked a bit, and you could see a bit of corrosion where it had pooled.

Stainless steel is susceptible as well. Considering kegs are pricey and hard to come by, I am not sure its a great idea to be storing star san in there, even in diluted concentrations.


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Old 09-28-2012, 01:17 PM   #12
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Originally Posted by kevstev View Post
I was going to say, starsan is very acidic, and I have seen it corrode my aluminum kettle to a degree- I stored a batch in a bottling bucket, which sat inside my kettle, and the bucket leaked a bit, and you could see a bit of corrosion where it had pooled.

Stainless steel is susceptible as well. Considering kegs are pricey and hard to come by, I am not sure its a great idea to be storing star san in there, even in diluted concentrations.
Disclaimer: I am not a Materials Engineer and I am only speaking from my own experiences.

When mixed according to the directions star-san has a PH of 2.5 and is considered effective up to a PH of 3.0.

Soda has similar PH ranges, see link http://www.juicing-for-health.com/images/ph-value-chart My thoughts are that Star-san, when mixed properly, is no more corrosive than soda

I have not seen any degradation to the same keg that I have been using for over three years of almost constant contact with Star-san.


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Old 09-28-2012, 08:39 PM   #13
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I have left StarSan in a brew kettle for a few days before and gotten some sort of scale that was very difficult to get off. In the end, I had to boil some PBW water in the kettle to dissolve the scale.

It must have something to do with it being exposed to excess oxygen, though, because I have a dedicated StarSan corny keg as well, and have never had the same issue with the keg.
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Old 09-28-2012, 08:43 PM   #14
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I have star san in my kegs and bottles in all of them. Iīm not brewing anymore Iīm a star-san drinker. Donīt blame me after reading al the signatures in the bottom with people with star san in their fermentor I tough that was for being drink. Itīs quite tasty but Donīt do it if you have acid reflux or care about your life.
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Old 09-28-2012, 09:07 PM   #15
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Kegs have a higher purpose then storing starsan, keep mine in glass gallon jugs.
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Old 09-28-2012, 09:12 PM   #16
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Kegs have a higher purpose then storing starsan, keep mine in glass gallon jugs.
It's hard to push Starsan through lines, picnic taps, and beer guns when it's in a glass jug.
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Old 09-28-2012, 09:19 PM   #17
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Have a DIY hand pressure pump to push through the lines. I just don't leave starsan in it as it rusts the spring.
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Old 09-30-2012, 05:19 PM   #18
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Every empty keg of mine is filled with sanitizer that way you can clean anything any time ready to go


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