Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > how long does star san last?
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Old 11-06-2012, 03:44 PM   #1
bacchusmj
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Default how long does star san last?

Ive got a gallon jug full from my last batch and I was gonna keep it to fill the spray bottle. Will it last a couple months?


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Old 11-06-2012, 03:47 PM   #2
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Usually, in a sealed container, it will last a good long time. Look for it turning cloudy, or getting a film on the bottom of the container it's in. I typically keep the spray bottle full of Star San, changing it either when it's below 1/2 full, or when I have mixed up a fresh batch.


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Old 11-06-2012, 04:02 PM   #3
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Mixed with distilled water it will remain potent for months...

Cheers!
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Old 11-06-2012, 06:16 PM   #4
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Check the pH for extended storage (I forget the number off the top of my head). Distilled water is supposed to last indefinitely.
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Old 11-06-2012, 09:51 PM   #5
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I believe ph 3.3 or lower and you're good-to-go. It was mentioned in an old brewing radio podcast on sanitation.


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Old 11-06-2012, 09:56 PM   #6
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There isn't a sticky for this!? UTFSE plz


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