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SO2 Wine Calculator
Calculate molecular sulfur dioxide and antimicrobial protection in wine
Winemaking Formula: Molecular $SO_2$ is calculated using the formula $\text{Molecular } SO_2 = \frac{\text{Free } SO_2}{1 + 10^{\text{pH} - 1.81}}$. An active molecular $SO_2$ level between $0.5\text{ mg/L}$ and $0.8\text{ mg/L}$ is typically required for reliable microbial protection in table wines. Enter your measurements below.
Wine Parameters Input
Calculation Results
⚠️ High pH wines (>3.6) require significantly more free $SO_2$ to achieve adequate molecular antimicrobial protection!