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Overshot Mash PH

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BrewQwest:
Um... Kai... anybody... this thread is hanging in limbo.... Kai, what were the results of you plugging in the info you wanted???? cheers!!

Kaiser:
BrewQuest, sorry about the delay. Don't worry about PMing me when I seem to have forgotten about a thread.

When I put your data into the Brewer's Friend water calculator I get a predicted mash pH of 4.94. That is 8+% acidulated malt in this grist. No surprise that it is that low. That also matches Weyermann's rule of thumb of about 0.1 pH drop per % acid malt. When I replace the acid malt with Pilsner I get a pH of 5.71. That's about 0.092 pH drop per 1 %.

I saved the settings to this link: http://www.brewersfriend.com/mash-chemistry-and-brewing-water-calculator/?id=X2XN944

I would have gone with just 0.6 lb of acid malt. That's about 3% of the grist and should have gotten you to a pH around 5.4.

Kai

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