Advanced water calculator

[RiverStreet]

Hey,
I have a pretty consistent problem using the advanced water calculator. I use IBrew Master on my phone usually when I start a recipe and it gives me a color (SRM). When I put the SRM in on Brewers Friend it comes up with a mash pH for the water that I put in. When I change it to Grain Bill for color calculation, the pH is always about .2 higher than the SRM calculation. Huge difference there. Is it me or had anyone else done this?

 

[newmanwell]

I prefer using the actual grain bill. acidity coming from crystal is different than roasted which is different than base malt.

 

[Ozarks Mountain Brewery]

sorry you cant use 2 different programs and complain , its one or the other, the formulas are not the same but you can master one and brew good beer, but you have to spend the time and do your homework