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-   -   Where do I get 85% Food Grade Phosphoric Acid (http://www.homebrewtalk.com/f128/where-do-i-get-85-food-grade-phosphoric-acid-266035/)

p-nut 08-31-2011 06:33 PM

Where do I get 85% Food Grade Phosphoric Acid
 
Does anyone know where to get 85%. All I can find is 10%.

Ace_Club 08-31-2011 06:35 PM

Star San is 50%.

Only 35% more to go! :D

p-nut 08-31-2011 06:39 PM

Quote:

Originally Posted by Ace_Club (Post 3218189)
Star San is 50%.

Only 35% more to go! :D

Not sure I want to treat my mash and sparge water with Star San.

Ace_Club 08-31-2011 06:40 PM

If you really need it at 85% concentration, just do a Google search. There are lots of places that sell it. Here's one from Amazon for only $15 for 1L.

bobbytuck 08-31-2011 07:52 PM

That Amazon link is where I purchased my 85% phosphoric from. Came within a couple days. I suspect I'll never have purchase another bottle. It's a big bottle. It'll last for years.

Actually -- it just dawned on me -- does acid last for years on the shelf? I keep it in my basement where the temp is a pretty steady 65F.

phidelt1499 08-31-2011 07:59 PM

Quote:

Originally Posted by bobbytuck (Post 3218519)
Actually -- it just dawned on me -- does acid last for years on the shelf? I keep it in my basement where the temp is a pretty steady 65F.

So long as it's in a relatively inert container (which I assume it is) and you keep it out of light and temp extremes, you should be fine.

AiredAle 09-01-2011 02:37 AM

Keep it below 200 Celsius and don't worry about it. Light, cold, nothing gonna touch it, except extreme heat. If you find your bottle approaching 200 C, run from the room... that's 400 F near enough.....you have bigger instability issues than the phosphoric acid.

emjay 09-01-2011 02:58 AM

My LHBS just started carrying 75% food-grade phosphoric acid.

I got a gallon jug of it for only $20 (more than one would ever need for most uses), which is pretty damn good when you consider that my LHBS tends to overcharge for EVERYTHING.

And it's a Five Star product, no less. It even has instructions on the side of the jug for yeast-washing - though my purpose for buying it was to adjust mash pH.

Given that I've never seen it until very recently, (and also because the store owner told me he'd be getting smaller containers of the product shortly), I think it might be a pretty new product for Five Star, and if so, I'd expect it to start showing up in all sorts of local and online shops.

Accidic 09-01-2011 02:58 AM

You might try Dudadiesel. They're relatively cheap with tons of food and/or photo grade chemicals and some of the best plate chiller pricing I've seen. Plus since it's in alabama you can feel all outlawish.

http://www.dudadiesel.com/search.php?query=phosphoric

BuzzedBomber 08-05-2012 03:03 PM

Quote:

Originally Posted by Accidic (Post 3219952)
You might try Dudadiesel. They're relatively cheap with tons of food and/or photo grade chemicals and some of the best plate chiller pricing I've seen. Plus since it's in alabama you can feel all outlawish.

http://www.dudadiesel.com/search.php?query=phosphoric

+1 for Duda Diesel


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