All of the wines imported by Organic Wine Company are "Certified Organic" by ECOCERT or BIOFRANC and contain only a minimal amount of sulfur dioxide. The average amount of total SO2 found in the bottles analyzed by the official BATF laboratory is 40ppm (parts per million) for our red wines, 60ppm for the white wines and 80ppm for the sparkling wines. Conventional wines typically contain 2 to 3 times these amounts. The rule set by the USDA calls for a maximum of 100ppm