Allervibe
E212
Potassium benzoate
The potassium salt of benzoic acid, used as a preservative in acidic foods and drinks.
i Additive Details
| Is E212 Potassium benzoate safe?
With ascorbic acid (E300) in acidic drinks, traces of benzene can form under heat or light, though manufacturers have largely reformulated. Reactions are reported in some people with asthma, urticaria or aspirin sensitivity. It also adds potassium, which matters for people on a potassium-restricted diet.
| Uses
Preserves soft drinks, fruit juices, sauces, dressings and margarine. It is very soluble in water and is chosen over sodium benzoate in reduced-sodium products. Like all benzoates it only works below about pH 4.5.
| Interactions
Releases benzoic acid in the product and shares its group ADI with E210, E211 and E213. Often paired with potassium sorbate (E202) so the pair covers moulds, yeasts and bacteria across a wider pH range.
| Origin
Synthetic. Made by neutralising benzoic acid with potassium hydroxide or potassium carbonate. Benzoic acid itself occurs naturally in cranberries, prunes and cinnamon.
| Daily Intake
EFSA's 2016 re-evaluation maintained a group ADI for benzoic acid and benzoates of 5 mg per kg of body weight per day, expressed as benzoic acid.
Information is sourced from public regulatory bodies (EFSA, FDA, WHO) and is for reference only. Always read the package and consult a healthcare professional for medical advice.
Related additives
- E227 Calcium bisulphite A calcium sulphite that exists only in solution, used as a preservative and antioxidant.
- E228 Potassium bisulphite A potassium sulphite supplied as an aqueous solution and used as a preservative and antioxidant.
- E210 Benzoic acid A weak organic acid used as a preservative against yeasts, moulds and some bacteria in acidic foods.
- E213 Calcium benzoate The calcium salt of benzoic acid, a preservative for acidic foods and beverages.
- E200 Sorbic acid An organic acid used as a preservative, mainly against moulds and yeasts.
- E201 Sodium sorbate The sodium salt of sorbic acid; no longer authorised as a food additive in the EU.
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