Potassium metabisulfite derives its vegan and vegetarian status from potassium bisulfite.
| Vegan? Yes | Vegetarian? Yes |
Classifications are made based on the available commercial supply of the ingredient, and are made based on the criteria on our classifications page.
Commercially available potassium metabisulfite is vegan and vegetarian.
Potassium metabisulfite is used as a preservative. It is produced from potassium bisulfite.