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Can I use citric acid to adjust ph?

 
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jrolison




Joined: 25 Feb 2013
Posts: 24



PostLink    Posted: Sat Jul 06, 2013 4:03 pm    Post subject: Can I use citric acid to adjust ph? Reply with quote


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The brew section calls for lactic acid

"The most common problem brewers face with a lighter beer such as this is that the mash pH will be too high. To lower the pH (if required), add some 88% lactic acid half a milliliter (mL) at a time, stir, and re-measure."
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kal
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Joined: 12 Dec 2010
Posts: 11116
Location: Ottawa, Canada

Drinking: Pub Ale, Electric Creamsicle, Mild, Pliny the Younger, Belgian Dark Strong, Weizen, Russian Imperial Stout, Black Butte Porter


PostLink    Posted: Sat Jul 06, 2013 9:40 pm    Post subject: Reply with quote

Yup!

Read the section on 88% lactic acid here for more details:

http://www.theelectricbrewery.com/parts-list-using?page=4

Kal

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foomench




Joined: 21 Feb 2012
Posts: 704
Location: Longmont, CO

Drinking: Pinot barrel aged quad

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PostLink    Posted: Mon Jul 08, 2013 8:22 pm    Post subject: Reply with quote

I've used lactic acid. Yet another technique (which happens to be Reinheitsgebot compliant) is to use acidulated (a.k.a. sauer) malt. This requires some experimentation to determine the correct amount. Use a little, measure pH, adjust with acid or base to get where you want, tweak recipe for next time. I don't have my recipe handy, but I think I determined 1/2# worked for 6 gallons of German Pilsner in my case.
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