Sulfur dioxide generating pads or sheets chemical review


Sulfur dioxide generating pads (or sheets) are packed in containers of grapes post-harvest to control various fungal rots. These products contain sodium metabisulfite (also spelt metabisulphite), which reacts to moisture in the grape container, releasing sulfur dioxide, thereby preventing grapes being affected by various fungi during storage and transportation. Sodium metabisulfite is also an approved food additive for other food commodities.

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