E-number  · E525

E525 — Potassium Hydroxide

Caustic potash. Vegan.

The entry Reference notes, kept short.

What it is

E525 is potassium hydroxide (caustic potash). Synthetic from brine electrolysis.

Why it matters

Alkaline acidity regulator, similar applications to E524 but where potassium is preferred.

What to do

Always vegan.

Sources Where the entry is drawn from.
  • Vegan Society additives database