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Additives
Potassium Benzoate
Potassium benzoate is a potassium salt of benzoic acid used as a preservative to inhibit the growth of mold, yeast, and some bacteria in acidic foods and beverages.
Mineral or nutrientUpdated Feb 14, 2026
Health score+1.0
-5Good5
Water guidelines
- Legal limit
- Not specified
- Health guideline
- Not specified
Food and supplement guidelines
- Legal limit
- Not specified
- Health guideline
- Not specified
Risks
Irritation at high concentrations, potential formation of benzene under certain conditions, sensitization in rare cases
Benefits
Prevents microbial spoilage, extends shelf life of acidic foods and beverages
References
Waters containing Potassium Benzoate
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