Gypsum (Calcium Sulfate) 2 oz.

Gypsum (Calcium Sulfate) 2 oz.

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  • $1.50
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Gypsum adds hardness to brewing water. Use 1-2 teaspoons per 5-Gals. 1 gram of gypsum adds 62 ppm of calcium & 147 ppm of sulfate. Gypsum is also used to lower water pH.