Sulfites are often used as food additives. They are known for their antioxidant and antibacterial properties.
In the food sector, sulphites are mainly used to prevent oxidation and deterioration of foods. For example, they are often added to products such as wine, fruit juices, dried fruit and ready-to-eat foods to delay spoilage and maintain their colour.
It is important to note that in some countries such as Italy it is required that products containing sulphites indicate their presence on the label, as some people may be particularly sensitive to these substances.