Calcium Carbonate (Chalk)
Calcium carbonate is used to reduce the acidity of wine. It does not require cold-stabilization to force complete precipitation, as does potassium carbonate. However, calcium carbonate is more likely to affect the flavor than potassium carbonate, and may take a few months to fully precipitate.
One-quarter ounce (about 4 teaspoons) of calcium carbonate reduces acidity in one gallon by about 0.25%. Foaming may occur because of the production of CO2. Do not use more than one ounce per gallon. Wait 24 hours and rack wine. Calcium carbonate is also used in beer to increase the temporary hardness of water. Traditionally used in English stouts, pale ales and bitters.
Usage: Usage varies with acid level
Common name: Chalk
California Recipients: WARNING: Cancer - www.P65Warnings.ca.gov
Humboldt Beer Works
Humboldt Beer Works is located in Old Town Eureka, on California's beautiful & rugged North Coast.
Locally owned and operated since 2011, and re-established in 2018, we've been committed to offering the highest quality ingredients and equipment, as well as the advice you need to succeed.