Calcium Carbonate - chalk

Calcium carbonate 98% (Chalk) - water modifier

Calcium carbonate (E170 food grade) 98% is the most popular acidity reducing agent! (increases pH). The composition is ultra-pure calcium carbonate. Dosage: 6.5 g/10 l reduces acidity by 1 g/l. Suitable for brewing dark beer, which requires a carbonate concentration of at least 150ppm.

Packaging: 100g.