Sulfites are a food preservative widely used in winemaking, thanks to their ability to maintain the flavour and freshness of wine. , which also produces sulfites, so almost all wine contains sulfites. Winemakers have been adding sulfur dioxide to finish wine since the 1800s. It has several effects on the winemaking process, including protecting against oxidation, which can affect the colour and taste of wine. It also stops re-fermentation in the bottle (and thus bottle damage / explosion). Most of our smaller winery partners use minimal sulphur dioxide, thus more pure wine.
Are sulfites naturally occurring in wine or are they added?
Sulfites are a food preservative widely used in winemaking, thanks to their ability to maintain the flavour and freshness of wine. , which also produces sulfites, so almost all wine contains sulfites. Winemakers have been adding sulfur dioxide to finish wine since the 1800s. It has several effects on the winemaking process, including protecting against oxidation, which can affect the colour and taste of wine. It also stops re-fermentation in the bottle (and thus bottle damage / explosion). Most of our smaller winery partners use minimal sulphur dioxide, thus more pure wine.