Five Star | 5.2 pH Stabilizer

Five Star | 5.2 pH Stabilizer

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5.2 is a proprietary blend of buffers that will lock in your mash and kettle water at a pH of 5.2 regardless of the starting pH of your water.


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Browse 3 questions Browse 3 questions and 52 answers
Why did you choose this?
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good product
Jess C on Feb 7, 2023
Sounds helpful
Teresa M on Dec 29, 2022
good product
Jess C on Feb 7, 2023
In recipe
Jeff on Jan 23, 2023
Sounds helpful
Teresa M on Dec 29, 2022
I think I need it though it wasn’t clear
Michael e b on Dec 3, 2022
This product seems to work well to adjust pH into the 5.2-5.5 range.
James B on Nov 30, 2022
Topo Chico
Leo Martinez I on Nov 22, 2022
High PH in house water
Chris R on Oct 7, 2022
Good stuff; some people have other thoughts but try it for yourself.
Kevin Stewart on Jun 7, 2022
Never ph my mash, wanted to see if this would give me better efficiency
Benjamin C on Apr 21, 2022
Try it out
gary lynn on Mar 3, 2022
trying it for the 1st time
Pete T on Dec 30, 2021
Brew Day
derek b on Dec 24, 2021
Water treatment
CJ on Dec 15, 2021
Almost out
Kirk S on Dec 7, 2021
Rodney D on Dec 1, 2021
ph adjust
Timothy P on Nov 3, 2021
I always use it to stabilize my well water pH in my mash
Gary on Oct 30, 2021
I need to optimize the ph of the water used in my proccess
Ivan J on Oct 11, 2021
It helps me with my mash.
Michael H on Aug 4, 2021
stabilize mash pH
Mark F on Jun 19, 2021
More mash consistency
Eric M on May 29, 2021
To help beer ph
Michael D T on May 20, 2021
makes getting mash pH simple and it works
Todd O on May 19, 2021
Because i step of getting the ph right is always better then 2 steps.
billy w on May 11, 2021
Hard seltzer
Justin L on May 6, 2021
I use this every time
Jens Michelsen on Apr 17, 2021
Sounds like it will help stabilize my water which is a higher pH
William S on Feb 19, 2021
For Seltzer
Derek H on Feb 3, 2021
Great for mash conversions
Adam Peppas on Jan 29, 2021
Trying to improve the product
Aron Thomas M on Jan 11, 2021
works really well for my application
Gerald D on Dec 18, 2020
alkaline tap water
Clifford A on Dec 16, 2020
Simplify my water ph process
Adam D on Nov 24, 2020
Tried it and like it.
Mark G on Nov 3, 2020
To make PH Balance easier
Gary E N on Oct 7, 2020
This plain works.
Brian H on Oct 2, 2020
works best for my water
Paul P on Sep 29, 2020
I was out!
Richard Mortimer on Sep 17, 2020
Great product to ensure proper Ph
Timothy E on Jul 30, 2020
Try it out
Jeffrey F Cook J on Jul 23, 2020
Because you put it in your recommendations
Nik D on Jul 9, 2020
for mashing
Wayne L M on Jul 3, 2020
need mash pH at 5.2 for optimum fermentation
John L on Jun 25, 2020
To make my life easier
Brian M on Jun 23, 2020
I have enjoyed success with this product and needed to restock
Todd P on Jun 17, 2020
Try it out
Daniel A on Jun 17, 2020
troy s on Jun 10, 2020
Wanted to try it
Sarah H on Jun 2, 2020
Improve beer quality
Nick S on May 20, 2020
Deal of the day!
Robert S on May 20, 2020
In recipe
Jeff on Jan 23, 2023
I think I need it though it wasn’t clear
Michael e b on Dec 3, 2022
Is this product added to the mash water before or after adding grains?
Michael McNelly on Sep 19, 2022
BEST ANSWER: Add before the grains. I would suggest using lactic acid for the same purpose. I much prefer the lactic acid to drop pH than this stabilizer.
Will this work adjusting the sparge water?
mike atha on Apr 9, 2023

4.1 / 5.0
50 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
So far this has done the job along with some process changes
March 8, 2023
1 year ago
Rated 5 out of 5
It's a secret
I hate to admit it but this is the secret ingredient of the best brewers word wide. Your water is the key to perfection. Add to strike water. 2 Tbs for 9 gal. That's it. Brew away. Cheers my friends
March 7, 2023
1 year ago
Rated 5 out of 5
PH stabilizer
Great product, easy to use
February 6, 2023
1 year ago
Rated 5 out of 5
Mash Stabiliser
Use this every brew and have stopped checking ph as it's always spot on.
January 1, 2023
1 year ago
Rated 5 out of 5
Great product. Significantly improves my final gravity! I’d recommend this product
August 8, 2022
1 year ago
Rated 5 out of 5
The only chemical altering additive I use
February 9, 2022
over 6 years ago
Rated 4 out of 5
The Description oversells it but it seems to work as a mild pH buffer
I mixed 200g of room temp water and 0.53g of acid blend (malic and tartaric) to a pH of 3.2 -- I added 5x recommended at rate of 1tbsp/1gallon (1.16g of buffer as I measured 1 tbsp as 22 grams so used ~ 22g/3785g water).

This maybe raised the pH by 0.2, I added to 4x that amount (so 20x) and that brought me up to about 4.0... adding 0.4g of sodium bicarbonate got me to 5.2 from there. I think that if you are within a couple of points pH this probably will nudge you in the right direction - but it DOES NOT "instantly adjust(ed) to the perfect pH of 5.2" -- that's just not how chemistry works.

I cannot say if this is good or bad for brewing, I think a small amount probably doesn't hurt anything and will likely nudge you towards 5.2 pH -- but it will not fix a significant pH imbalance. I plan to use it at normal dose for brewing just to give a light buffer effect but will still pre-adjust my pH to be in the ballpark.
testing pH buffer results
testing pH buffer results
November 22, 2021
Rated 5 out of 5
This stuff is the bomb
Want to take the guess work out? Use this stuff. I believe in using local water to give your beer local flavor, but the ph where I live is terrible. Fixed my problems right now.
August 10, 2021
over 3 years ago
Rated 1 out of 5
Not impressed.
Chemical engineer here. It just doesn’t buffer well enough at the dosage recommended. I had a fermentation stall with this product used. The pH was less than 3. My starting pH was 5.8. I will make my own buffer in the future.
February 16, 2021
over 3 years ago
Rated 5 out of 5
Boiling pot
I decided I wanted to try out the 5.2 Ph stabilizer as an experiment when I made my next batch of beer. Wow what a difference it made. The yeast went crazy and the airlock looked like a pressure valve on a pressure cooker. Really impressive.
September 30, 2020
over 3 years ago