Quotes About SO2

SO2 is one of the most effective antimicrobials on the planet and is highly antagonistic to growth. In its gaseous form, SO2 can be lethal to any air-breathing creature and is in fact the leading cause of death in a volcanic eruption.

For the home winemaker at the crush stage, it's enough to shoot for 50 ppm (SO2) for reds and 70 ppm for whites, adjustable as the pH dictates from the optimums.