Potassium bisulfite derives its vegan and vegetarian status from sulfur dioxide, potassium carbonate.
| 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 bisulfite is vegan and vegetarian.
Potassium bisulfite is produced by reacting sulfur dioxide with potassium carbonate.