Click here to Login
Subscribe for Newsletter GoToChef for Brands

Preservative (E 224)

Also Known As : INS No. 224, Potassium pyrosulfite, Dipotassium disulfite, Potassium metabisulphite, Dipotassium disulphite, Disulfurous acid potassium salt (1:2), Pyrosulfurous acid p


Taste Profile

It has a pungent sulfur odour.

Usage Tips

  1. Preservative (E 224) is commonly added to wine or must (freshly crushed fruit juice (usually grape juice) that contains the skins, seeds, and stems of the fruit) in which it forms sulfur dioxide gas (SO2). This helps prevent micro-organisms from growing, and also it acts as an antioxidant, protecting both the color and delicate flavors of wine.
  2. It preserves the taste of dehydrated foods and makes these foods more palatable. It preserves frozen vegetables, frozen shellfish, fruit juice, and pickles and increases their shelf-life.
  3. Always store Preservative (E 224) in a cool and dry place, away from direct sunlight and keep in a tightly sealed container when not in use.

Common names and forms

  1. Antioxidant (E224)
  2. Class I Preservative (INS 224)
  3. Class II Preservative (E224)
  4. Class II Preservative INS 224
  5. Permitted Class II Preservatives (224)
  6. Permitted Class II Preservatives E224
  7. Permitted Class II Preservatives INS-224
  8. Potassium Meta Bisulphite (E-224)
  9. Potassium Metabisulfite (INS 224)
  10. Preservative (224)
  11. Preservative (INS 224)
  12. Preservative potassium metabisulfite (E-224)
  13. Sulphites E224


Preservative (E 224) is a food additive which is a well established and proven preservative used in the wine and food industries. It is a white crystalline powder which is a potassium salt of sulphurous acid. It is produced synthetically hence is 100% Vegan. As with other sulphurous acid salts, it's addition to foods reduces their vitamin content.


Preservative (E 224) should be avoided by individuals who are intolerant to natural sulphites.(1) Exposure to it may cause severe burning and damage to the eyes, irritation, and reddening of skin and difficulty in breathing. If exposed in its raw, unprocessed form, one should immediately seek medical attention.(2)

- Disclaimer
"Information here is provided for discussion and educational purposes only. It is not intended as medical advice or product or ingredient review/rating. The information may not apply to you and before you use or take any action, you should contact the manufacturer, seller, medical, dietary, fitness or other professional. If you utilize any information provided here, you do so at your own risk and you waive any right against Culinary Communications Private Limited, its affiliates, officers, directors, employees or representatives.”