Forkin
E431No regulatory flagsIn 5 productsVegan: depends on source

Polyoxyethylene (40) stearate

Function: Emulsifier

E431 is the European food-additive number for Polyoxyethylene (40) stearate, an emulsifier — helps ingredients that normally separate, like oil and water, stay mixed. Polyoxyethylene (40) stearate (E431) is an emulsifier used as a food additive.

What is E431 used for?

Polyoxyethylene (40) stearate (E431) is an emulsifier — helps ingredients that normally separate, like oil and water, stay mixed. It is added during food production for a technological purpose rather than for nutrition. See all emulsifiers (E-numbers).

Is E431 safe or restricted?

E431 is an approved food additive in the EU and currently carries no special regulatory restrictions in the EU additive register. Forkin classifies it as No regulatory flags and does not make health claims. See the methodology for how regulatory levels are assigned, or the guide to how EU additives are approved, re-evaluated and banned.

Is E431 vegan or vegetarian?

Polyoxyethylene (40) stearate (E431) can be produced from plant, mineral, or animal-derived raw materials, and the ingredient list rarely states which source was used — so its vegan status genuinely depends on the specific product.

The production source can vary between manufacturers — the Forkin app shows the verified vegan and vegetarian status per product. Always read the label for allergens.

Which foods contain E431?

E431 appears in 5 of the 4.7 million products in Forkin's catalogue — most often in pork (general) and muffins.

  • Pork (General)1
  • Muffins1

Often appears alongside

Additives most frequently found in the same ingredient lists as E431 across the catalogue.

Counts reflect Forkin's independently enriched product catalogue and update as new products are added — they are not a market-share statistic.

Frequently asked questions about E431

What is E431?
E431 is the E-number for Polyoxyethylene (40) stearate, an emulsifier — helps ingredients that normally separate, like oil and water, stay mixed. Polyoxyethylene (40) stearate (E431) is an emulsifier used as a food additive.
What is E431 used for?
Polyoxyethylene (40) stearate (E431) is an emulsifier — helps ingredients that normally separate, like oil and water, stay mixed. Manufacturers add it during processing rather than for nutrition. The Forkin app shows which products in your scan history actually contain it.
Which foods contain E431?
E431 appears in 5 of the 4.7 million products in Forkin's catalogue — most often in pork (general) and muffins. Scan any barcode with the Forkin app to see instantly whether a specific product contains it.
Is E431 vegan or vegetarian?
Polyoxyethylene (40) stearate (E431) can be produced from plant, mineral, or animal-derived raw materials, and the ingredient list rarely states which source was used — so its vegan status genuinely depends on the specific product. The Forkin app shows the verified vegan and vegetarian status per product, since the source can vary between manufacturers.
Is E431 safe, and is it banned anywhere?
E431 is an approved food additive in the EU and currently carries no special regulatory restrictions in the EU additive register. Forkin classifies it as "No regulatory flags" and does not make health claims — see the methodology page for how regulatory levels are assigned, and the Forkin app for the full profile, including acceptable daily intake (ADI) and restrictions by country.

See the full profile in Forkin

The Forkin app surfaces the full regulatory profile of E431 — acceptable daily intake (ADI), restrictions by country, vegan/vegetarian status, alternative names, and which products in your scan history contain it. See view pricing.

Related additives (Emulsifier)

Regulatory-level classification based on EFSA re-evaluations and exposure assessments, IARC monograph groupings, the EU food additive register (Regulation (EC) No 1333/2008) and mandatory warning labels, ECHA harmonised CLP classifications, FAO/WHO JECFA acceptable-daily-intake reviews, and national measures (US FDA, Health Canada, California OEHHA Proposition 65). Informational only — not medical or dietary advice. See methodology for the rubric.