Phosphoric Acid (10%) - 4 oz

Phosphoric Acid (10%) - 4 oz

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10% concentration. Phosphoric acid is said to be tasteless while lactic in large quantities can potentially leave flavor. Being a lower conentration than the Lactic, it is slower to change the pH of your water and therefore more forgiving to use.

Shipping Restricted: This product is only eligible for ground shipment within the contiguous 48 states.
Item # WM54
Shipping Eligible for Free Shipping Program
Availability California - In Stock
Pennsylvania - In Stock
Weight 0.25 LBS
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Sparge water acidification
Timothy S on Feb 16, 2023
Use to correct Mash PH
Andrew D. R on Nov 16, 2022
Sparge water acidification
Timothy S on Feb 16, 2023
BrunWater spreadsheet element for water adjustment
Frank C on Feb 8, 2023
Use to correct Mash PH
Andrew D. R on Nov 16, 2022
lightest way to lower pH
Gregg P on Oct 15, 2022
Sparge water PH Adjustments made simple
Chris Dornbach on Oct 1, 2022
I need to adjust my water.
Merlinus Monroe on Aug 3, 2022
mash pH adjustments
Tom Carola on Jun 21, 2022
It's the largest offered.
Wayne P on May 19, 2022
Lower pH
Dwain Pannell on Feb 22, 2022
pH adjuster
Lars N on Jan 11, 2022
Lower ph
Phillip evans on Dec 17, 2021
water chemistry
Anthony Caezza on Dec 15, 2021
Use it to pre acidify my sparge water. Works great!
Chris Dornbach on Oct 22, 2021
Water profile additive.
Izzy Britton on Sep 21, 2021
balance water chemistry
Alan L on Sep 16, 2021
To get proper pH of mash water
Linz on Sep 14, 2021
mash pH adjustment
Schuyler Campbell on Sep 14, 2021
Adjust water
David S on Aug 4, 2021
victor h on Jul 20, 2021
Sparge water acidification
Chris Dornbach on Jul 9, 2021
To control PH in mash
Seiji S on Jun 15, 2021
Need for water balance
Michael S on May 21, 2021
need one
Eric P on Apr 21, 2021
ph adjustment
Skip Chilcott on Apr 20, 2021
For brewing beer
Cole C on Mar 16, 2021
Not available locally
Josh L on Jan 11, 2021
To control water chemistry
John W on Dec 2, 2020
we ran out. need some
Rodney A on Nov 13, 2020
Ph control of mash
Daniela Garcia on Oct 31, 2020
specific recipe
David R on Oct 29, 2020
Because Northern Brewer only had 8%, this is 10%
Bryson G on Oct 28, 2020
Mash pH adjustment
Darrell Burk on Oct 20, 2020
for adjusting mash acidity
Michael G on Sep 19, 2020
I always use Lactic. Thought I'd try Phosphoric for a bit.
Mike W on Aug 11, 2020
pH adjustment
Jason M on Aug 11, 2020
Lowering mash pH
Jake on Aug 7, 2020
Because I ran out
Kuumba Smith on Jul 25, 2020
To adjust mash pH
Bryan A B on Jul 22, 2020
pH adjustment on tap water.
Mark W J on Jul 21, 2020
Ph control
sean r on Jun 13, 2020
David S on Jun 12, 2020
acidifying sparge water
Jennifer V on May 26, 2020
Price and availability
Doug C on May 16, 2020
water treatment kit
Devin B on May 9, 2020
finishing up my water additions toolbox
Gary Haygood on Apr 17, 2020
Water adjustments
Brandon L on Apr 3, 2020
Brulosophy xBmt says phosphoric may be a better choice than lactic
Christian Knoebel on Mar 24, 2020
Mash water ph adjustment
Robert J on Jan 28, 2020
pH control
Oliver I on Jan 16, 2020
Mash ph adjustment
Robert J on Dec 31, 2019
BrunWater spreadsheet element for water adjustment
Frank C on Feb 8, 2023
lightest way to lower pH
Gregg P on Oct 15, 2022
I see no label on the bottle. Dose this come with instructions?
fletcher little on Jan 25, 2018
BEST ANSWER: The bottle does come with a printed label that has the product information. The dosage rate will vary based on your application and water profile.
I ordered this and when it arrived there was no seal under the cap. Is this normal?
Jonathan Murphy on May 27, 2024

4.4 / 5.0
14 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 2 out of 5
Not reliable
I couldn't understand why my larger batch (15G+) mashes had such high pH. I bought some 75% phosphoric acid and started using it, and all my pH problems were resolved.
July 2, 2024
over 5 years ago
Rated 4 out of 5
Good, neutral-flavored acid
My favorite acid to lower pH, because it has no noticeable residual taste.
August 27, 2022
1 year ago
Rated 5 out of 5
Good for lowering ph if u only what to drop it 1/2 a point if not you will have to use alot
March 1, 2022
over 2 years ago
Rated 5 out of 5
Great Product
Works great for adusting my strike and sparge water.
May 6, 2021
over 4 years ago
Rated 5 out of 5
Reduces PH with no flavor impact
I like to use Phosphoric acid to reduce the PH of my strike water. Easy to measure and I don’t have little powder piles in the bottom of the kettle.
June 10, 2020
over 4 years ago
Rated 4 out of 5
Just a little will do.
July 19, 2018
over 6 years ago
Rated 5 out of 5
lower the ph of your water
I started using this a couple of years ago. It (along with cal chl and a few other additions) makes it easy to hit the ph in the mash. Any mash, not just the dark beers.
March 24, 2018
over 6 years ago
Rated 5 out of 5
Sadly this is the largest size bottle
Seems strange that you can order 100 of them, but not in a single bottle larger than this.
February 9, 2018
over 6 years ago
Rated 4 out of 5
Lower Ph
Works great to lower mash water to 5.2 before sparging
May 29, 2015
Rated 5 out of 5
Easier than Latic acid
Instead of the 88% Latic acid the 10% acid enabled me to dial in my mash ph to within .03, I be happy
May 27, 2015