SO2 Wine Calculator

Equilibrium approximation using AWRI's pKa 1.81 aqueous 25°C convention. Does not correct wine temperature, ethanol or bound SO2. Target is user supplied; no additive dose, regulatory limit or microbial-safety guarantee.

Equilibrium approximation using AWRI's pKa 1.81 aqueous 25°C convention. Does not correct wine temperature, ethanol or bound SO2. Target is user supplied; no additive dose, regulatory limit or microbial-safety guarantee.

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Result

Enter your values and run the tool to see your result.

How to use this tool

Check the units, enter your values, and run the tool. Results follow the assumptions and method below.

Calculation method

Approximate molecular SO2 (mg/L)free/(1+10^(ph-1.81))
Free SO2 corresponding to target (mg/L)target*(1+10^(ph-1.81))

References