star-san longevity

Discussions about dispensing and packaging beer.
Josh Lindsey
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star-san longevity

Postby Josh Lindsey » Sun Apr 17, 2011 9:24 am

Any thoughts on the longevity of star-san?
I'm in the habit of leaving my brew day star-san solution in a 30 gallon plastic trash can. This is all the can has ever been used for.
It is usually between 5-10 gallons. I will continue to use it for sanitizing to rack to secondary and such. A lid is kept on when not in use.

I know what you're thinking, but it is not the source of the Band-Aid.

No problems yet, but does Star-San keep?
Thanks!
JoshL
Josh

"Always carry a flagon of whiskey in case of snakebite; and furthermore, always carry a small snake."
-W.C. Fields

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Mark Ranes
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Re: star-san longevity

Postby Mark Ranes » Sun Apr 17, 2011 1:12 pm

Supposedly, if the PH of the StarSan stays below 3.5 you're ok. That's the difficult to test answer:)

In reality, you should be good for several weeks - maybe longer. I seem to remember reading something about this waaaaaay back, saying if it wasn't too cloudy, it was good to use. I know I've used StarSan that was at least a month old, sitting in a covered bucket, with no problems. Additionally, I've had a spray bottle for sanitizing yeast starter parts that was months old and it worked like a champ:)

Mark
Eat, drink, and be merry. For tomorrow we die. ~Dave Matthews~

Josh Lindsey
Posts: 177
Joined: Mon Apr 13, 2009 2:49 pm
Contact:

Re: star-san longevity

Postby Josh Lindsey » Sun Apr 17, 2011 2:59 pm

Cool. It is pretty cloudy, but it starts that way. I'll check the pH.
Josh

"Always carry a flagon of whiskey in case of snakebite; and furthermore, always carry a small snake."
-W.C. Fields

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Mark Ranes
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Joined: Tue Mar 31, 2009 4:17 pm
Location: Turlock, CA
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Re: star-san longevity

Postby Mark Ranes » Wed Apr 20, 2011 10:31 pm

I've also heard that if you can pull all the minerals out of your water (think RO) you use to make the StarSan solution, you'll get a nice clear batch of sanitizer. It's the hard stuff in the water that makes it cloudy initially.

Mark
Eat, drink, and be merry. For tomorrow we die. ~Dave Matthews~


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