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Old 06-15-2011, 12:16 AM   #1
gcdowd
 
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So right now I have a dish tub with about 2 gallons of water and sanitizing solution in it to clean my instruments as I progress with my brew. My question is, how long can I safely leave my solution out before the sanitizing agent wears off? Right now, it's uncovered and I have my hydrometer chilling in there. I'd hate to keep making new solution if I can just re-use what I have made.
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Old 06-15-2011, 12:25 AM   #2
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How long are you planning on keeping it out? My guess is you'll be ok during your brewing process if that's what you mean. I alway keep a dish and a bucket of starsan ready
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Old 06-15-2011, 12:47 AM   #3
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I plan on leaving it out another 3 weeks or so.
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Old 06-15-2011, 12:51 AM   #4
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Star-san can last a long time, especially if it's mixed with distilled water. I keep some in a jug under the sink, and will use it over and over.

With tap water, it doesn't last nearly as long. You can check the pH to see if it's still in the "safe" range, which I think is a pH under 3(?).

Remember that cleaning and sanitizing are two separate steps entirely. You just sanitize a clean item before using. A sanitizer isn't a cleaner, though. You'd need to clean it first, then sanitize. I wouldn't keep anything (especially plastic) in sanitizer for more than a few minutes, though. Star-san can make the plastic "slimy" and start breaking it down.

Iodophor can't really be saved very long- it starts losing effectiveness rapidly after being mixed.

It really depends on which sanitizer you're using, and how it's stored.
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Old 06-15-2011, 12:51 AM   #5
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what is it Starsan? If so i get about 2 or 3 months or so on my Starsan batchs

 
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Old 06-15-2011, 12:56 AM   #6
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Yes I always clean everything after I use it. I'm not sure what it is, just says oxygen based cleaner
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Old 06-15-2011, 12:59 AM   #7
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Quote:
Originally Posted by gcdowd View Post
Yes I always clean everything after I use it. I'm not sure what it is, just says oxygen based cleaner
Welllllll, a cleaner is NOT a sanitizer. Also, it works on the premise of "oxygen bubbles" so it would be very short lasting even if it did sanitize. So, no, you can't save it or reuse.

I'd recommend keeping it for cleaning, and getting a sanitizer for sanitizing.
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Old 06-15-2011, 01:04 AM   #8
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I didn't mean cleaner, I meant sanitizer. But since it's oxygen based that would make sense. What is star san?
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Old 06-15-2011, 01:09 AM   #9
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Id bet its One-Step. One Step will last up to 1 week. In a closed, clean container in a refrigerator.

But i dont think One Step is a good choice for a sanitizer IMO.
One-step is not labeled as a sanitizer because the producer has not chosen to apply with the FDA for that designation

 
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Old 06-15-2011, 01:12 AM   #10
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Yes, that is what it is. Didn't realize one step was the name of it
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