Scientific Name: Calcium Carbonate
Chemical Elements: CaCO3
Water Impact: Raises pH
Chalk Home Brewing Uses
In home brewing beer, chalk is used to raise the pH of the mash. It is uncommon that the mash's pH would need to be risen unless a lot of dark grains were being used or if there was a mistake in rising the pH due to calcium chloride or lactic acid. Due to chalk's limited solubility, it is only effective when added directly to the mash.
Chalk is commonly used when making dark beers with soft water.
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