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Food-Grade Chalk

What it does :

Food-grade chalk is used to increase temporary hardness or increased mash pH.

What it is:

This is the common name for calcium carbonate.

How it works:

Food-grade chalk adds temporary hardness and raises the mash pH.

Dosage:

Use of 1 teaspoon in 5 gallons adds 60 ppm of carbonate and 36 ppm of calcium. Add to the water when mashing for all-grain brewing, or just before the boil. Do not add more than 1.5 teaspoons per gallon.

Related Links

Water Treatment
Volume Conversion
Weight Conversion
Food-Grade Chalk