Enter the volume of wine, the desired concentration of SO2, and the dilution factor into the calculator to determine the amount of SO2 to be added. This calculator can also evaluate any of the variables given the others are known.

So2 Addition Formula

The following formula is used to calculate the amount of SO2 addition in winemaking. 

SO2 = (V * C * D) / 1000

Variables:

  • SO2 is the amount of sulfur dioxide to be added (in milligrams)
  • V is the volume of wine (in liters)
  • C is the desired concentration of SO2 (in mg/L)
  • D is the dilution factor of the SO2 solution (usually 1 if using pure SO2)

To calculate the amount of SO2 to be added, multiply the volume of wine by the desired concentration of SO2, then multiply the result by the dilution factor of the SO2 solution. Finally, divide the result by 1000 to convert from milligrams to grams.

What is a So2 Addition?

SO2 addition refers to the process of adding sulfur dioxide (SO2) during winemaking. This is done to prevent oxidation and maintain the color, flavor, and stability of the wine. It also has antimicrobial properties, helping to prevent spoilage from bacteria and yeast. The amount of SO2 added must be carefully controlled as excessive amounts can lead to negative effects on the wine’s taste and aroma.

How to Calculate So2 Addition?

The following steps outline how to calculate the amount of SO2 to be added in a wine using the given formula:

  1. First, determine the volume of wine (V) in liters.
  2. Next, determine the desired concentration of SO2 (C) in mg/L.
  3. Next, determine the dilution factor of the SO2 solution (D). This is usually 1 if using pure SO2.
  4. Finally, use the formula SO2 = (V * C * D) / 1000 to calculate the amount of sulfur dioxide to be added in milligrams (SO2).
  5. After inserting the values of V, C, and D into the formula, calculate the result.

Example Problem:

Use the following variables as an example problem to test your knowledge:

Volume of wine (V) = 5 liters

Desired concentration of SO2 (C) = 10 mg/L

Dilution factor of the SO2 solution (D) = 1