MW Essay: Sulfur Dioxide

Our latest MW Perspectives essay, by tackles the complicated topic of sulfur dioxide, outlining its purposes in winemaking as well as the available alternatives.

The essays in the MW Perspectives section are written by Masters of Wine and intended as a resource for those pursuing WSET qualifications and the MW study program—as well as anyone interested in these programs or the varied topics covered. Masters of Wine interested in contributing can email GuildSomm Editor at