I do not double crush. I was considering this for the next go around, but my mash efficiency is always greater than 85%, and my OG is usually within predicted +/- 2 gravity points. Do you think this would make a difference in my pH?
I always calibrate the meter first thing on brew day. There is no calibrate mode. You just adjust the screws to read the value of the calibration liquid.
I always allow the liquid to cool before I measure the PH. The strips and the meter both measure low which leads me to believe that they...
I do full volume BIAB. I start with RO water. I have measured the TDS of the RO and it is typically less than 3PPM, so I am pretty sure it is truly RO water. I use Bru'n Water spreadsheet and the new BeerSmith water tool to calculate my salt additions. Both are usually close to each other...