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Old 05-05-2008, 03:52 PM   #1
DJCalico
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Default Keeping StarSan

Quick question about the retention of StarSan... from reading I understand that you can keep a bucket of StarSan solution (which I did from my last brew day) and that it is good as long as it retains it's clarity (which I think it is)...

My question is bubbles... obviously it wont keep it's bubbles. For those that keep their sanitized solution, what do you do weeks later when you're ready to keg/bottle? Do you add a fresh splash of StarSan and shake the bucket to mix it?

Thanks

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Old 05-05-2008, 03:58 PM   #2
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No need to add any fresh splash or anything. And it's not really the clarity (although that can be a decent indication).

The main thing you want to keep track of is the pH. You'll want it to be at 3 or under in order for it to retain its sanitizing capability. You can usually pick up some pH paper at your homebrew store.

I have kept Star-san for around 5 months and the only reason I tossed it was because I had a siphon start unexpectedly (apparently, the siphon was full of sanitizer!) into the bucket where I kept the Star-San.

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Old 05-05-2008, 04:01 PM   #3
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Interesting.. thanks.

I guess I'm kinda freaked out now until I can get some lithmus paper. Dont want to save it just for it to possibly not be working as intended.

Would rather spend a few more bucks on a new bottle of starsan than be stingy and lose my beer to an unnecessary infection

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Old 05-05-2008, 05:40 PM   #4
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To remain useful, starsan has to be CLEAR and pH < 3.0.
I'm not sure what you're talking about when you refer to 'keeping its bubbles'... Starsan acts like soapy water, obviously if you leave it sitting the bubbles will recede but if you shake it again they're back again, you do not need to add any more starsan to achieve this.

I store starsan in a spare keg and it literally keeps for months. I got some cheap pH strips but so far I've never had any starsan rise above pH 3.0 - usually I throw it out after a couple months even though the pH is fine and it's still crystal clear, just to be on the safe side. My 32oz bottle of starsan has lasted me like a year and I've barely put a dent in it.

One thing I really found helpful is to pick up a small 10cc syringe - this way I can accurately measure out small amounts of starsan to mix up a gallon or less (6mL/gal = 1oz/5gal), so that I don't have to mix up 2.5 or 5 gallons at a time when all I need is a gallon or less.

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Old 05-05-2008, 06:17 PM   #5
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Quote:
Funkenjaeger wrote:
I store starsan in a spare keg and it literally keeps for months.

So I take it that the chemicals in Star San won’t hurt the stainless steel if left in contact over a long period of time?
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Old 05-05-2008, 06:38 PM   #6
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I would argue against Star-San having to be clear (and yes, I know Charlie himself says this). My Star San is never clear and either I keep a meticulously clean house or it's working just fine (I still check the pH, however).

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Old 05-05-2008, 07:10 PM   #7
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Originally Posted by PseudoChef View Post
I would argue against Star-San having to be clear (and yes, I know Charlie himself says this). My Star San is never clear and either I keep a meticulously clean house or it's working just fine (I still check the pH, however).
I with you. Mine is never clear and it works just fine.
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Old 05-05-2008, 07:16 PM   #8
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I with you. Mine is never clear and it works just fine.
I've never had clear Star San. It clouds up as soon as it hits my tap water...I'm thinking I might need to get some test paper to see if it's really working...
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Old 05-05-2008, 07:29 PM   #9
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I've never had clear Star San. It clouds up as soon as it hits my tap water...I'm thinking I might need to get some test paper to see if it's really working...
I use the PH strips. When it gets over 3 I dump it or if it gets dirty. cloudy and dirty are two different things.
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Old 05-05-2008, 08:35 PM   #10
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If you guys want to trust starsan no matter how long it sits then do the following.

Buy a 2.5 gallon sparkletts distilled water at the food store. Take off the whole lid, valve and all. It comes off easily after the molded on retainer is removed. Pour into the sparkletts bottle 1/2 oz of Starsan and put on the cap with valve that you removed. Make sure it snaps all the way in place where it was before removal. Shake it up.

Because distilled water has no minerals it retains its strength and does not degrade. This is very handy too because the spiggot easily fills spray bottles etc.

On brew day I mix up 1/2 a bucket of fresh tap water and 1/2 oz of starsan for soaking hoses and whatever and use spray bottles for spraying bigger things I can not soak like buckets or lids. I toss it when done but still have the spray bottles and the mixed Sparkletts distilled and Starsan available any time.

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Last edited by WBC; 05-05-2008 at 08:43 PM.
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