Is e224 vegan?

E224 is the European food additive code for potassium metabisulfite, an inorganic chemical compound used primarily as an antioxidant, preservative, and sterilizing agent. It is produced synthetically through the chemical reaction of sulfur dioxide gas with a potassium carbonate or potassium hydroxide solution. Manufacturers frequently add it to fermented beverages like wine, beer, and cider to prevent spoilage and oxidation. It also appears in dried fruits, fruit juices, jams, pickled vegetables, and processed potato products to maintain freshness and color.

E224 is considered vegan because it is derived entirely from mineral and synthetic origins. No animal tissues, animal secretions, or animal-derived processing aids are involved in its chemical synthesis or refinement. Because its production relies completely on non-animal chemical processes, potassium metabisulfite is consistently suitable for a vegan diet whenever it appears on ingredient lists.