Reliable testing of your mash is affordable with this pH Meter.
Unit comes with pH 7.00 buffer solution for calibration.
Hard Case. Auto Off.
Take a clear sample of wort from the mash 10 minutes after mash in, allow it to settle a few minutes and cool, then stir it with the bulb end and take the measurement. Wash the bulb well and allow it to dry before storing away in the box.