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Old 09-12-2010, 02:13 AM   #1
azingsheim
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Hi, how long can you keep star san for and how do you keep it?? I always have dumped mine, but would like to reused if possible. Thanks



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Old 09-12-2010, 02:24 AM   #2
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you can absolutely, positively reuse it. I'm sure someone will chime in If i have the number wrong, but as long as the ph is 3.5 or below you're good to go. And, if i'm not mistaken, it will last a lot longer if you use distilled water to mix



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Old 09-12-2010, 03:22 AM   #3
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If by reuse you mean sanitize something and then put it back in the container to sanitize something else, then I'm not sure I would recommend that. I wouldn't bathe in your used dirty bath water, so I would'nt think you would want to reuse the starsan/dead-germ mixture.

Mix the recommended amount with distilled water and it should last for many many months. Use a spray bottle to apply it.

One bottle of starsan should last for at least 15-20 5gal batches if you use a spray bottle.

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Old 09-12-2010, 04:03 AM   #4
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I understand that as long as it is clear and not cloudy, it is still good. Maybe someone on here will straighten me out.

I put it in a spray bottle and it goes a long way. Easier to spray the sides of a bucket than to fill the bucket with 5 gallons of sanitizer. I spray the bottle caps, spray inside the tubing, etc. My 8 oz bottle of Star San will last a lifetime at this rate.

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Old 09-12-2010, 05:22 PM   #5
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How about sanitizing a clean fermentor and then reusing it? I filled the fermentor with about 2 gallons of water and then cleaned the bucket airlock and lid. They were all clean, so would I be able to reuse it? Thanks

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Old 09-12-2010, 05:29 PM   #6
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I buy gallons of distilled water, mix it, and store it right in the gallon jug. I test it with pH strips before use. I also always have a spray bottle of mixed so I can sanitize items like hydrometers when needed.



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