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Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Mash pH of 4.8--too acidic?

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Old 08-08-2011, 09:36 PM   #1
BetterSense
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Default Mash pH of 4.8--too acidic?

All the articles I can find on mash pH say that 5.2-5.4 is optimum. But they also only mention the bad effects (bad flavor extraction) of having the mash too alkaline. I measured my mash pH in the middle of by mash and it was about 4.8 according to my test strips. Is that bad?

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Old 08-08-2011, 09:55 PM   #2
cfonnes
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Test strips can be hard to read.

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Old 08-08-2011, 09:59 PM   #3
remilard
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Unless you added acid, the reading was wrong. Even a 100% roasted barley mash is above 5.0.

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Old 08-08-2011, 11:37 PM   #5
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No way to accurately test pH without an actual (calibrated) pH meter. Remember, too, that all pH readings should be at room temperature.

Forget test strips. Invest in a meter. (For me, the meter was the single best homebrew purchase I've made. It's made a drastic difference in my beer -- the meter combined AJ's advice and the Bru'n water spreadsheet.)

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