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Old 12-08-2010, 07:54 PM   #1
hector
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Default Is my Sanitizing Solution correct ?

Hi there !

After having the third contaminated Batch , I'd like to see if I make the sanitizing Solution correctly .

I use " Povidone Iodine 10% " which is sold as " Betadine " in drugstores .

I use 1.25 mL of betadine for each Liter of Water .

I don't rinse with water after sanitizing .

Is that O.K. ?!

Hector

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Old 12-08-2010, 08:37 PM   #2
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Sanitizer solution is just extra protection. Good sanitation means thorough washing with soap and water, and the sanitizer is just "insurance" that you washed your equipment well enough.

I'd use a bleach/water/vinegar solution instead of iodine. When mixed properly it is a safe and easy no-rinse sanitizer.

Use 30ml of plain unscented bleach, dissolve in ~ 19L COLD water, RINSE YOUR MEASURING DEVICE IN HOT WATER, add 30ml of vinegar.

Never mix vinegar and bleach directly. It will make chlorine gas. Only mix it when diluted with water.

The resulting mix should be active for about 4-8 hours, after which you should discard it. It needs a wet contact time of at least 30 seconds with whatever you're sanitizing. 2 minutes contact time is what the FDA recommends, but that's their minimum contact for any/every type of sanitizer, and is probably overkill.

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Old 12-08-2010, 08:41 PM   #3
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Quote:
Originally Posted by Nateo View Post
I'd use a bleach/water/vinegar solution instead. When mixed properly it is a safe and easy no-rinse sanitizer.
I always use Iodophor and nothing else .

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Old 12-08-2010, 08:45 PM   #4
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Never used Iodine but have used Starsan since day one with no issues (knocking on wood) but seriously the stuff is like brew magic gold in bottle. I usually mix up 2 or so diluted gallons of the stuff for brew day and throw everything that needs to be sanitized in there, then at the end i fill up a spray bottle (about 1.5 liters) and keep that around until bottle/kegging and use for hydro readings, airlock and whatever else i'm uneasy about.

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Old 12-08-2010, 08:48 PM   #5
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The proper dilution for iodine based sanitizers is 1 tbs/5 gallons for no rinse. I'm not sure how that translates to liters/

It is perfectly fine to use drugstore iodines, even dairy/farm grade iodine, which many of us have bought in bulk from tractor supply.

I put a lot of good info and tips of effectively using sanitizers in here. Including iodine/iodophors here;

http://www.homebrewtalk.com/f39/sani...uestion-54932/

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Old 12-08-2010, 08:49 PM   #6
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What are the "symptoms" of your contamination, out of curiosity?

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Old 12-08-2010, 08:53 PM   #7
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Quote:
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I always use Iodophor and nothing else .

Hector
It doesn't sound like that's working out very well for you, so I recommend trying something else.
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Old 12-08-2010, 09:08 PM   #8
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I'd recommend Starsan and really just focus on every step in your process after the wort is cooled to see where the contamination may be ocurring. I always have a bottle of diluted Starsan that I use and everything gets a shot of this, including the yeast packets, scissors to cut the packet, my hands, etc.

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Old 12-08-2010, 09:23 PM   #9
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About a year ago, I had a problem where two or three consecutive batches got infected. First I bleached everything but then another contamination, so I soaked everything in starsan and again same thing. So I started from scratch and cleaned every piece of equipment in hot PBW for 6 hours followed by a good hot rinse and 10 minute soak in Starsan. Never had another issue. If you have a build up in a valve or some old yeast cake stuck in a hose, sometimes sanitizer isn't enough.

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Old 12-08-2010, 11:46 PM   #10
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I use both starsan and one step but I tend to use the one step a little more just because the foam from the starsan can get very annoying. I know, (don't fear the foam) but man sometimes its just out of hand.

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