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Potassium Sorbate (E202)

Also Known As : Food Additive 202, Preservative E202, Food Preservative 202, K sorbate, t-2, 4-hexadienoic acid, potassium salt; 2-propenylacrylic acid potassium salt, E 202, INS No. 202, 2,4-hexadienoic acid potassium salt, Potassium (2E,4E)-hexa-2,4-dienoate, Potassium 2,4-hexadienoate, Sorbic acid potassium salt, Sorbistat-k, Sorbistat-potassium


Taste Profile

Potassium is odorless and bland in taste.

Usage Tips

  1. Potassium Sorbate is used as a replacement to yeast in wine. It is added to vinegar, cakes, pastries, bread, biscuits, and processed meats.
  2. It is also used in foods such as cheese, yogurt, carbonated drinks, fruit juices, in canned fruits and vegetables.

Common names and forms

  1. Class II Preservative (E202)
  2. E202
  3. Emulsifier E-202
  4. Permitted Class II Preservative (E202)
  5. Permitted Preservatives INS 202
  6. Pot Sorbate (E202)
  7. Potassium Sorbate
  8. Potassium Sorbate (Preservative)
  9. Preservative (INS 202)
  10. Preservative (Potassium Sorbate)
  11. Preservative Agent: E202
  12. Preservative E202
  13. Preservative-202
  14. Preservative: Potassium Sorbate E202



Potassium sorbate is a food additive which is the potassium salt of sorbic acid. It is mainly used as a food preservative since its acidic nature is effective in inhibiting moulds and yeast growth in food. It exists as a white to yellow crystalline powder. Potassium sorbate was discovered by Frenchmen around 1850. They obtained it from berries of the European Mountain-ash tree (Sorbus aucuparia ), after which the acid is named. It grew first in South and East Asia but now grows in lots of parts of the world.


Potassium Sorbate may cause allergic reactions, it may also result in nausea and diarrhea. It may also cause loss of nutrients in foods to which it is added.(1)

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