Gypsum [Calcium Sulphate] 2 oz
Calcium Sulphate (Gypsum) | Various Sizes
Gypsum or calcium sulphate, increases hardness in brewing water. When brewing with distilled water, brewers favor gypsum as a way to replace hardness in the boiling water and can even be used to decrease the pH level of the water.
Use 1 teaspoon per every 5 gallons.
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