Acid or acidity regulator
E524 (sodium hydroxide): what it is, its sources, vegan or not
E524 is sodium hydroxide, an acidity regulator. E524 comes from minerals. Vegan and vegetarian profiles get Fits you.
By Bravoora teamUpdated Sources checked 4 sourcesHow we check
Fits you
for a vegan profile
E524=minerals
What is E524?
E524 (sodium hydroxide) is an acidity regulator, an additive that adds acidity or a sour taste to a food, or controls how acid it is. The lye that gives pretzels their dark, shiny crust.
What is E524 made from?
E524 comes from minerals.
- Minerals
Is E524 vegan?
Fits you. E524 comes from minerals. Nothing from an animal.
What the app says to each profile, and the reason it shows.
What other names does E524 have on a label?
On a label, E524 can also appear as “INS 524”, “Acidity regulator (524)”, “Acidity regulator (E524)”, “Sodium hydroxide” or “Caustic soda”.
Any of these on a pack means E524. The checker reads them all.
What would change the answer for E524?
For E524, only the ingredient list itself: a code the camera cannot read gets Needs one more scan, and the app never guesses a code it cannot see.
Sources: EU, US and Codex additive rules
Where additives are listed and approved. Bravoora reads the source and the diet; it does not rate the hazard.
- EU Regulation 1333/2008 on food additives (the E-number list)
- EU Regulation 1169/2011, Annex II: the allergen sources a label must name
- US FDA: Food Additive Status List
- FAO/WHO Codex: General Standard for Food Additives (GSFA) online
Names and classes cross-checked with Open Food Facts (Open Database License).
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