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Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > peroxyacetic (Peracetic) acid
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Old 11-18-2009, 07:28 AM   #1
TheBeerNerd
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Default peroxyacetic (Peracetic) acid

Is there anywhere you can get this without being a big brewery?
Brewery I work for uses this for sanitizer and I've had access to it for a while, but I'm about to move out of town and lose my connection. Can't find any resources to buy peroxyacetic online...

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After reviewing that, I'm confident that stir plates are the way to go! Although I'd still like to find a way to use sex toys in brewing.
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Old 11-18-2009, 01:54 PM   #2
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Actually this is pretty neat stuff but very, very toxic:

"Peracetic acid is an ideal antimicrobial agent due to its high oxidizing potential. It is broadly effective against microorganisms and is not deactivated by catalase and peroxidase, the enzymes that break down hydrogen peroxide. It also breaks down in food to safe and environmentally friendly residues (acetic acid and hydrogen peroxide), and therefore can be used in non-rinse applications. It can be used over a wide temperature range (0-40 °C), wide pH range (3.0-7.5), in clean-in-place (CIP) processes, in hard water conditions, and is not affected by protein residues."

I don't recommend you do this at home but you can make a weak form of Peracetic Acid using Vinegar and Hydogen Peroxide.

"You work with two clean spray bottles. In one, you put a solution of 3 % hydrogen peroxide, the same strength as you get from an ordinary drugstore for disinfecting wounds. In the other spray bottle, you put white vinegar (or apple cider vinegar.) It is recommended that you do not mix the two mixtures together in one bottle because a weak form of peracetic acid is formed. Peracetic Acid ( aka peroxyacetic acid) is a mixture of acetic acid and hydrogen peroxide. Peracetic Acid is primarily used for deactivation of a large variety of pathogenic micro-organisms in the industrial food industry, medical supplies and to prevent biofilm formation in paper pulp industries. It is usually produced in concentrations of 5 - 15%. This industrial formulation is toxic by inhalation, ingestion or if absorbed through skin; caustic and corrosive at concentrations 10%; irritant at concentrations below 2%. Retail vinegar is a mixture of acetic acid and water composed of 4 to 8% acetic acid. Hydrogen peroxide at 3 % and retail versions of vinegar are an extremely diluted form of peracetic acid. Mixing the diluted form of acetic acid (known as vinegar) with 3% hydrogen peroxide forms a weak form of peracetic acid that may cause some reaction to those who are sensitive - therefore applying the two solutions separately is recommended."

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Old 11-18-2009, 03:11 PM   #3
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I know the vapors can be nasty, but I've spilled undiluted peroxyacetic on my skin before with nothing more than a little skin peeling after.

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After reviewing that, I'm confident that stir plates are the way to go! Although I'd still like to find a way to use sex toys in brewing.
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Old 11-18-2009, 06:23 PM   #4
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why not just switch to star-san? sounds like the same sort of acid sanitizer, but far more 'friendly' to use.

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