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Brewing Water Chemistry Calculator

Adjust mash water with salts to hit a target water profile.

Ca (target)7 ppm × 5.0 gal
Mg (target)2 ppm
SO4 (target)5 ppm
Cl (target)5 ppm
HCO3 (target)15 ppm
HintAdd gypsum / CaCl2 as needed

About this tool

Type your source-water profile (or use a preset) and pick a target style profile (Burton, Dublin, Pilsen, Vienna, etc.). Get the gram additions of gypsum, calcium chloride, epsom salt, and sodium chloride, plus the resulting mash pH estimate. The r/Homebrewing 'what salts for a pilsner' tool.

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