E431 – Polyoxyethane (40) Stearate
StabiliserDescription
Mixture of stearic acid esters with polyoxyethylene
Notes
Polyoxyethylene 40 stearate is very similar to its cousin E430, but with a key difference – it contains much more polyoxyethylene (40 units compared to about 8 in E430). It's made using the same process: combining stearic acid (a fatty acid from animal fats or plant oils) with polyoxyethylene, but the higher polyoxyethylene content makes it more water-soluble and gives it stronger emulsifying properties. The "40" in its name refers to the average number of ethylene oxide units attached to each stearic acid molecule. Like E430, this additive serves as an emulsifier, but its enhanced water-loving properties make it particularly effective in products that need strong, stable emulsions. You'll find it in ice creams, baked goods, processed foods, and various creamy products where it helps create smooth textures and prevents separation. It's especially useful in low-fat products where maintaining creamy texture without traditional fats can be challenging. The same dietary considerations apply as with E430 – its suitability for vegetarian, vegan, halal, or kosher diets depends on whether the stearic acid comes from plant or animal sources. Many manufacturers now use plant-based stearic acid, but those with specific dietary requirements should verify the source with the manufacturer. This additive is recognized as safe by international food safety authorities and doesn't pose allergen concerns for most consumers.