I finally completed an article than I promised when I wrote the Sep/Oct 2011 Zymurgy article on mash pH and beer color: Beer color to mash pH (v2.0). Don’t get too excited, though. This is very heavy on math and should merely be seen as a reference to how I arrived at the current SRM to mash pH formula I implemented in the most recent versions of Kaiser_water_calculator_US_units.xls and Kaiser_water_calculator.xls.

and