Additives for Acid Adjustment

This is a mix of citric, malic, and tartaric acid. One teaspoon per gallon increases acidity by 0.1%

Calcium Carbonate (precipitated chalk) increases pH; 1 gram per gallon adds 106 ppm calcium, 158 ppm carbonate.

Citric Acid can be used in sanitizing solutions to lower the pH, which will make the SO2 level more effective. It is also used to increase acidity ...

The most desirable and stable of the wine acids. One teaspoon per gallon will increase acidity by 0.1%.

Reduces acidity in wine; use 3.8 grams/gallon to reduce acidity by 0.1%.