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The Filtr Library
Additive · Filtr file

E525

Potassium Hydroxide

Alkali used to adjust acidity.

SAFEPenalty−0 ptsFSANZPERMITTEDBanned in—
FILE · E525
SafeFiltr penalty−0 pts
ISSUED · 06.2026
01 / 04What it is

E525 in plain English

Alkali used to adjust acidity.

02 / 04Why it's used

It tunes the pH.

To maintain a precise pH window — flavour, colour stability and preservative efficacy all hinge on it.

acidity regulator
03 / 04Health concerns

No meaningful safety concern.

Recognised safe by EFSA, FDA and FSANZ at typical exposure.

04 / 04Regulatory status

How the world's regulators rule

Australia · FSANZ
Permitted
Banned jurisdictions
None recorded
Filtr risk tier
Safe
Filtr score penalty
−0 points
Category
Acidity regulator