Sodium hydroxide (E524)
Updated October 2, 2026
Sodium hydroxide (E524) is a food additive in the “other additives” group. It appears in 2,013 products in our database, 299 of them sold in the US.
Quick facts
- Also known as
- E524
- E-number
- E524
- Function
- Other additives
- Found in
- 2,013 products (299 sold in the US)
Foods that commonly contain Sodium hydroxide
Share of published products in each category whose ingredient list includes Sodium hydroxide.
Popular products with Sodium hydroxide
e NOVA 4 
b NOVA 4 
NOVA 4 
a NOVA 4 
a NOVA 1 
e NOVA 4 
e NOVA 4 
e NOVA 4 
c NOVA 4 
e NOVA 4 Sodium hydroxide-free alternatives
Popular products from the same categories that don't list Sodium hydroxide and score Nutri-Score A–C.
c NOVA 3 
c NOVA 4 
c NOVA 3 
c NOVA 3 
b NOVA 3 How to spot Sodium hydroxide on a label
Look for any of these names in the ingredient list:
Related additives
Frequently asked questions
What foods contain Sodium hydroxide?
In our database, Sodium hydroxide most often appears in pretzel, salty snacks, crackers (appetizers) and chocolate candies.
How many products contain Sodium hydroxide?
2,013 published products on Foodmetria list Sodium hydroxide, including 299 sold in the United States. Counts come from ingredient lists in Open Food Facts and update daily.
Product data: Open Food Facts (ODbL), updated daily. Additive information is for general education and is not medical advice. Always check the package label. Our methodology.