pH Calibration Solution - Set of 2

pH Calibration Solution - Set of 2

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If you’re a serious homebrewer, you know the importance of proper pH during the brewing process. Use these calibration solutions to keep your pH meter reading accurately before each brew.
Includes 4oz each of 4.00 and 7.00 buffers. We package these solutions from bulk quantities to get you the best pricing. For testing, pour buffers into a small glass. You do not want to stick the probe of the pH meter into the buffer jars directly because you will eventually sacrifice the accuracy of your buffers.
Expires after 6 months if unopened. Expires after 3 months if opened.
Item # MT610
Shipping Eligible for Free Shipping Program
Availability California - In Stock
Pennsylvania - In Stock
Weight 0.32 LBS
Community Q&A

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Why did you choose this?
MoreFlavor Store
looked like the best deal.
Bernard A on Feb 22, 2023
So i can change ph in each beer that i make
Allen H on Feb 8, 2023
looked like the best deal.
Bernard A on Feb 22, 2023
replace expired
Cynthia r F on Feb 10, 2023
So i can change ph in each beer that i make
Allen H on Feb 8, 2023
for my baseness
johnson t on Feb 2, 2023
CalibrAte my ph meter
Vincenzo LaValle on Dec 21, 2022
quality & value
Joe S on Dec 19, 2022
Old solutions expired.
Tim D on Nov 23, 2022
Keep your pH meter accurate
Robert R on Oct 21, 2022
Brad P on Sep 7, 2022
to calibrate my pH meter
Peter N on Sep 1, 2022
Calibrate Ph meter
Dimitri K on Aug 25, 2022
Steve P on Aug 19, 2022
To cal my pH meter
Robby M on Aug 16, 2022
fair price and good reviews
Andrew Stephen H on Jul 14, 2022
Need to calibrate ph pen
Paul on Jul 8, 2022
reasonably priced and i need it
Taylor G on Jun 4, 2022
To calibrate meeter
Glenn L on May 28, 2022
Better than powdered packets
Dannon C on Apr 1, 2022
Jabe H on Mar 8, 2022
Good price, good shipping cost.
LINDA on Feb 25, 2022
to calibrate the probe
Gilbert B on Jan 22, 2022
david r on Jan 10, 2022
available shipping
Joel K on Dec 30, 2021
Ours expired from our kit.
Tammy A on Dec 4, 2021
To properly calibrate my PH meter.
Chris Miller on Nov 25, 2021
Raphael K on Nov 25, 2021
Calibrate ph meter
Waverley A on Nov 13, 2021
Calibrate pH meter
Blair M Jolley on Oct 26, 2021
I need it
Roberta I on Oct 21, 2021
replace older solutions
G Robert George on Oct 9, 2021
I couldn't find this locally
Pat L on Oct 8, 2021
Smallest and most affordable set. Refresh your solutions at least once per year.
Larry Z on Sep 20, 2021
to properly calibrate my ph meter
john C on Sep 14, 2021
as above
Valued C on Sep 9, 2021
Solutions go out of date, time to replace the old stuff.
Mark C on Sep 1, 2021
need refills
Thomas L on Aug 28, 2021
For calibrating my pH meter
Dustin McMahon on Aug 18, 2021
To calibrate my ph meter, I need to replace 1 year old buffer solution
Valued C on Aug 11, 2021
Mixing packets is a PIA
Robert H on Jun 30, 2021
to calibrate me pH meter
Richard Schmittdiel on Jun 26, 2021
expired date
Clint S on Jun 25, 2021
Required for calibration
Kenny Parker on Jun 9, 2021
To ensure I am getting good readings.
Joseph C on May 4, 2021
Every one with a pH meter needs to keep it calibrated.
Lee B on Apr 29, 2021
For kettle sour
Manuel S on Apr 28, 2021
need it
Lee C on Apr 28, 2021
because I'm almost out of the supplies I have.
Jeffrey R on Apr 21, 2021
Calibrate PH meter
Mark B on Mar 18, 2021
Solution expired
William D W on Mar 12, 2021
replace expired
Cynthia r F on Feb 10, 2023
for my baseness
johnson t on Feb 2, 2023
My pH meter requires 4.01 and 7.01 buffers to calibrate. Will these 4.00 and 7.00 buffers cause inaccurate calibration? In other words, are 4.00 and 4.01 buffers generally interchangeable?
David Jammalo on Aug 13, 2019
BEST ANSWER: You will be fine, there is most likely an acceptable range that is +/- 0.5 for the buffers anyway. You are essentially telling the pH monitor what 4.0 and 7.0 are, so if you were really concerned you could just subtract 0.01 from the readings. But again in most cases you'll be just fine!

4.8 / 5.0
26 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 5 out of 5
Works as advertised
Works as advertised. I’m happy with it.
June 6, 2022
1 year ago
Rated 5 out of 5
Ph buffer it is what it is
March 1, 2022
over 2 years ago
Rated 5 out of 5
PH is on target
The calibration fluids seem to work properly. No problems.
October 26, 2021
over 2 years ago
Rated 5 out of 5
Simple to use Feel good about the results
September 20, 2021
over 2 years ago
Rated 5 out of 5
Did the Job! As to be expected!
April 28, 2021
over 2 years ago
Rated 5 out of 5
Excellent product
If you're an all grain brewer managing your mash ph is important. These two calibration solutions are essential to properly calibrate your ph meter.
August 26, 2020
over 3 years ago
Rated 5 out of 5
No problems would suggest a larger size
April 8, 2020
over 3 years ago
Rated 3 out of 5
Wish they were NIST rated.
March 20, 2018
over 5 years ago
Rated 5 out of 5
Keep it calibrated
PH meter was probably the best investment for my brewing. Need to have this to keep it the meter in line. Good price and product.
May 30, 2015
Rated 5 out of 5
Calibration solution is a must
Always keep a set around and calibrate every time you brew. It helps give you a repeatable product.
May 16, 2015