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Old 12-05-2009, 09:59 AM   #1
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Default iodine for sanitation

is it possible to use normal iodine mixed with water to get a decent sanitation?

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Old 12-05-2009, 02:26 PM   #2
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Yes, I believe you can use any iodine as a sanitizer but Iodophor may be more suitable for homebrewing as it is iodine that contains a solubilizing agent which is more effective when dilluted with water. Also, elemental iodine could be toxic when ingested in amounts larger than those required to disinfect water which is why tincture of iodine is sold labeled "for external use only," and used primarily as an surface disinfectant.
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Old 12-05-2009, 02:45 PM   #3
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Yes you can use just about any iodine/iodophor product for sanitization, many of us use a dairy grade iodine based sanitizer since it is really cheap in bulk, can be bought at most farm and feed stores, and since it is used to meet the stringent safety requirments for milk processing/milk handling, it is more than suitable for our needs.

The standard dillution for 1.5% titratable iodine is 1 tablespoon/5 gallons. DIfferent 5 will require a different dillution ratio.

This appears to be a good breakdown of various iodophors and their dillution.

Quote:
Iodophors

Postby DaaB on Tue Apr 15, 2008 6:50 pm
Iodophor and Betadine/Videne

Iodophor is a combination of iodine and an agent such as Povidone to make it water soluable.

Iodophor solution is dilluted with water and it releases free iodine, which is an effective bactericide and fungicide, it kills bacteria, mould and wild yeast that could spoil your beer.

Preperation: To make an effective no rinse solution it should be diluted to no less than 12.5ppm and no more than 25ppm. (more than 25ppm requires rinsing).

Below are the various dilution rates for the different brands of iodophor to produce solutions of 12.5ppm, they vary with the amount of free iodine in the iodophor product.

Dillution Rates (for 12.5ppm):

Betadine (1% free iodine) dillution is 1.25ml/l .

Videne (is a direct replacement for Betadine), suggest using as Betadine unless new info comes to light.

BTF iodophor (tbc not quoted or analysed) dillution is 0.78ml/l

Brupaks iodophor (analysed at 2.1% free iodine) dillution is 0.6ml/l

Instructions for use: The item being sanitised should be kept wet with an iodophor solution for 30 seconds or more then allowed to drip dry (or almost dry). Hand sprayers are ideal for wetting surfaces to be sanitised by iodophor.

Effectiveness: Iodophor's effectiveness can be approximated by it's colour. As long as the colour hasn't faded from that of the original preparation there is still the required level of iodine available for effective sanitisation.

When making a preparation of iodophor, filtered water is recommended (such as water that has passed through a Brita filter to remove chlorine and chloramines). Iodophor solutions made with filtered water have been shown to maintain their colour and therefore effectiveness for longer.

Tests have shown that the bactericidal activity (effectiveness) greatly reduces with an increase in ph. Solutions at ph 3-5 are significantly more effective than at ph7. If you live in a hard water area it is advisable to add 1 tsp of citric acid to the solution.

Iodophor solutions that are within the recommended ph range maintain their colour and therefore effectiveness for longer.

Brupaks iodohpor has already been acidified, although again people in hard water areas may find 1/2-1 tsp of citric acid is required to bring the ph to within the most effective range.

Cost: Brupaks Iodophor = £4.50 (17/04/08 ) for 250mls
0.6mls/l dillution = 416L of solution
This is also an invaluable article.

http://www.bayareamashers.org/conten...s/iodophor.htm

If you are lucky enough to find an iodine/phosphoric acid mix, which quite a lot of dairy sanitizers contain, it is even better. It is like having an iodophor/starsan mix.
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Old 12-06-2009, 01:38 PM   #4
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revvy thank you very much for your answers, all of them were very helpful!

today I contacted a company that is into a chemical business, and asked for sanitation solutions for brewing or dairy.

they couldn't talk, but have sent me a spreadsheet with all they have got. since I live very far away from the USA, there are probably the same things here but with different names.

of all the things in their spreadsheet I found three that could be interesting.

Quote:
1. IODOSEM-500S shampoo
with 5% of Iodine;
pH 3,00

-Based on molecular iodine. For disinfection
of equipment, instriments, surfaces, skin; protects from usual bacteriums, fungi, spores and viruses. Working solution 0,006-2% in water, depending on means of disinfection.

2. DEZISEM
-Based on stabilysed percloracetic acid, wich
doesnt foam, for use in industry of alcoholic drinks and mineral water

3. SEMI CHLOR CH
Calcium hipochlorit with 68-72% active Cl

It has long stability, easy soluble, with a little
rest especially well for soft water. It can be used for preparation of drink water; working with it is not dangerous.

what should I choose? I think the first one is something very similar to Iodophore, but I'm not so sure.....
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Old 12-06-2009, 02:18 PM   #5
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I'm a little leery about number 1 simply because it has the word shampoo in the title, meaning perhaps it has some soapy type compounds in it.

I am actually leaning towards number two myself, since it says that it used in the drinks industry, which leads me to believe they mean breweries.

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Old 07-08-2014, 09:30 PM   #6
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I just wanted to share some info. I buy my Iodophore for $11.00 US per gallon. I know alot of places sell it for the same for just maybe 12 ounces. Just find a dairy supply store where they sell triclover fittings, wash solutions etc. Ecolab wants $44.00 per gallon.

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Old Yesterday, 12:38 AM   #7
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#2 sounds similar to starsan (obviously not the exact same but also an acid sanitizer). I would stay away from #3 Chlorine sanatizers are a pain, I used then in a pro brewery for a time, and will never use them at home as long as I have other options.

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Old Today, 02:25 AM   #8
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Never considered the pH, when I used iodine... I should check that.

Sometimes it's good for an old thread to be bumped up.

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Old Today, 02:26 AM   #9
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Never considered the pH, when I used iodine... I should check that.

Sometimes it's good for an old thread to be bumped up.

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