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Demystifying Sulfur Dioxide

Webinar Curriculum

  • Regulation associated with sulfur dioxide.
  • Why managing sulfur dioxide in wine is important.
  • An explanation of the different types of sulfur dioxide in an easy-to-understand way.
  • The difference between “antioxidant” and “antimicrobial” terms and how it applies to sulfur dioxide.
  • How to determine the appropriate free sulfur dioxide required to obtain a 0.85 ppm (molecular) concentration. 
  • How to calculate potassium metabisulfite additions to get to the desired free sulfur dioxide concentration in the wine.
  • Resources for double checking your arithmetic! 
  • The importance of total sulfur dioxide and what clues it can provide you during wine production.
  • How sulfur dioxide differs from other sulfur-containing compounds (e.g., mercaptans/thiols, disulfides) in wine.
  • Sulfur dioxide strategies for high pH wines.
  • How to make a sulfur dioxide addition.
  • Proper preparation of the acidulated sulfur dioxide sanitizer. 

Video length: 44 minutes

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