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Home Brew Forums > Home Brewing Beer > Brew Science > pH of Weyermann & Castle Pilsner Malt
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Old 08-17-2012, 05:13 PM   #1
DSmith
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Default pH of Weyermann & Castle Pilsner Malt

I tested Weyermann & Castle pilsner malt in distilled water and have the following results:

Weyermann Pilsner Malt = 5.80 (EZ Water uses 5.75 for pilsner malt, close enough). This is a pretty well known value.
http://www.midwestsupplies.com/pilsn...eyermannr.html

Castle Pilsner Malt = 5.54
http://www.midwestsupplies.com/pils-castle.html

This difference is interesting and helps planning acid / alkalinity source for mashing.

The pH meter was a Hanna pHep5 with fresh 2-point calibration.

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Old 08-17-2012, 05:52 PM   #2
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Wow, that's quite a difference. Thanks for the readings!

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Old 08-17-2012, 11:21 PM   #3
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Every time I've measured Weyermann's it came in at right around 5.75. I have head or some Pilsner malts measuring as low as 5.6 but never as low as 5.54 but then I've never measured or even seen Castle. With a Hanna meter I suggest calibration, followed by measurement followed by a cal check (not a re-cal - measure the pH of the two buffers to see how close the measurements are to the actual buffer pH's at the observed temperatures). The inexpensive meters tend to be unstable.

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