Difference between revisions of "PH Meter"

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A '''pH Meter''' is not only considered by some to be an essential tool for all grain homebrewing and commercial brewing, but is also a very useful tool to have for making sour beer.   
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A '''pH Meter''' is not only considered by some to be an essential tool for all grain homebrewing and commercial brewing, but is also a very useful tool to have for making sour beer.  For examples of when an accurate pH reading is useful in the sour brewing process, see the [[Mixed Fermentation]], [[Sour Worting]], and [[Lactobacillus]] pages. 
  
 
==Recommend pH Meters==
 
==Recommend pH Meters==

Revision as of 14:26, 21 April 2015

A pH Meter is not only considered by some to be an essential tool for all grain homebrewing and commercial brewing, but is also a very useful tool to have for making sour beer. For examples of when an accurate pH reading is useful in the sour brewing process, see the Mixed Fermentation, Sour Worting, and Lactobacillus pages.

Recommend pH Meters

High End pH Meters

Higher end pH meters recommended by our members and others.

Budget pH Meters

pH meters can range from $30 to $500+. The problem with many of the cheaper pH meters is that their reliability and longevity are often questionable [3]. Commonly, two pH meters are recommended by trustworthy sources (AJ Delange and Kai Troester).

Hach Pocket Pro+ pH Tester with Replaceable Sensor.

Hach Pocket Pro+

Features:

  • This pH meter is recommended by AJ Delange [3][4].
  • Does not require storage solution (there is an o-ring seal on the cap, which only needs to have a few drops of distilled water in it).
  • Replaceable sensor.
  • Stability [3].
  • 2 Buffer calibration.
  • Electrode longevity [3].
  • Junction resistant to fouling by sugars, proteins [3].
  • Lets the user decide when to accept a buffer calibration reading [3].
  • ATC [3].
  • Automatic buffer recognition [3].

Disadvantages:

  • Despite having an automatic calibration message, this pH still often needs to be calibrated before each brew day [3].

Milwaukee MW102 pH/Temp Meter (updated/upgraded from SM101 and MW101).

Milwaukee MW102

Features:

  • This pH meter is recommended by Kai Troester (SM101 originally) [5].
  • 2 Buffer calibration (calibration video)
  • ATC.
  • Stability [6].
  • Separate pH and temperature probes (can use as RTD for temp monitoring) [7].
  • Storage solution container screws into probe [7].
  • 0.02+/- accuracy.
  • Automatic temperature compensation.
  • Product specs comparison chart.

Disadvantages:

Buffer Solution

Buffer solution will be required to calibrate a pH meter. In general, it is recommended that a pH meter have a 2 point calibration method, which requires 4.0 buffer solution and 7.0 buffer solution. Many buffer solutions for pH meter calibration can be found on Amazon or other retailers.

External Articles

References