Potassium Benzoate (E212) — What You Need to Know
What Is Potassium Benzoate?
Potassium benzoate is the potassium salt of benzoic acid, used as a food preservative in low-sodium product formulations. It dissociates in solution to release benzoic acid, which is the active antimicrobial agent. It is particularly valued in products where sodium content must be minimized for dietary or health reasons.
What Is It Used For?
Used as a preservative in low-sodium beverages, fruit juices, and condiments where sodium benzoate would be unsuitable. Inhibits the growth of moulds, yeasts, and certain bacteria in acidic foods.
Safety Assessment
Potassium salt of benzoic acid, used as alternative to sodium benzoate in low-sodium products. Same benzene formation risk when combined with vitamin C. EFSA 2016 re-evaluation confirmed group ADI. Less commonly used than sodium benzoate but identical safety profile.
Based on current evidence, Potassium Benzoate is rated Caution with a score of 5/10. This is 0.7 points below the average for preservatives (5.7/10). Last reviewed by regulators: 2016.
Commonly Found In
Always check the label for E212 or 'Potassium Benzoate'
▶Chemical Information
Frequently Asked Questions about Potassium Benzoate
Quick Facts
- E-Number
- E212
- INS Number
- 212
- Category
- Preservatives
- Origin
- Synthetic
- FDA Status
- GRAS
- EFSA Status
- Authorized — group ADI for benzoates (E210–E213)
- ADI
- 5 mg/kg bw/day
- Last Review
- 2016
Related Additives
Other preservatives in the same family