Calcium Chloride (hydrated) is used to correct mineral deficiencies in water which is to be used for brewing. It is used in demineralized or soft to medium hard water to increase permanent hardness. Calcium Chloride is effective in eliminating the variations in composition often encountered in water from surface sources. It will help establish proper pH of the mash and the wort and provide sufficient calcium ions essential for enzyme function, kettle protein coagulation and yeast metabolism.
0.2 grams/liter increases calcium content by 50 mg/liter