[Kaiser]

Maybe your batch of MO malt is more acidic than mine. That's why it would be nice if malsters would also report the pH of the congress mash. I contacted Bob Hanson at Briess and he was very interested in seeing my data about the malt analysis. And since Briess is very forthcoming with data and specs for home brewers, maybe we'll see some pH related information published soon.

Kai

[nyakavt]

Kai, I'm on the Raleigh municipal water supply (RA~20) and I did perform the all-pils malt mash pH test to diagnose a problem I was having.  Using the colorpHast strips, so the reading should be 0.3 units higher than listed.  Oddly, the distilled pH was higher than the tap water pH, probably due to reading error.

Tap water:
50.0 g crushed pilsen malt
200.0 g water
pH, 10 min: 5.5

Distilled water:
49.8 g crushed pilsen malt
200.1 g water
mash temperature: 76.7 F/24.8 C
pH, 10 min: 5.3