Food-Grade Gypsum (Calcium Sulfate) – 1 Lb Bag

Description

Gypsum adds permanent hardness (calcium ions) to soft brewing water. Brewers that use distilled, or RO, water like to add some gypsum back into the water to give it some hardness. Gypsum can also be used to lower the pH of water. Use 1 teaspoon per 5 gallons.
Can also be used as a coagulant when making Tofu!

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