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[APD] Re: Potassium bicarbonate


Or any place that sells brewing supplies should have it. From the above site, I've also gotten CaCO3 (very fine powder, called "precipitated chalk"), CaSO4 (gypsum), and MgSO4 (same stuff as epsom salt you can get at the drug store). The latter two, of course, are good for when you want to raise hardness and not buffering capacity.


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