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Is Polyoxyethylene Stearate (E431) Halal?

E431 (Polyoxyethylene Stearate) is listed as doubtful by MUIS — its source can vary, so verify before consuming.

E431

Polyoxyethylene (40) Stearate

Doubtful

Usage: Emulsifier

Synthesised using stearic acid (E570)

Why is E431 doubtful?

MUIS lists E431 (Polyoxyethylene Stearate) as doubtful (mashbooh), which means the source cannot be confirmed from the E-number alone — not that it is haram. Although it is made synthetically, some production routes use animal-derived processing aids or carriers, and the E-number does not identify the producer. The reliable check is a recognised halal certification logo on the finished product, or a manufacturer statement of the source.

About Polyoxyethylene Stearate

Polyoxyethylene (40) stearate is a synthetic non-ionic emulsifier with longer ethylene oxide chains than E430. The doubtful classification reflects stearic acid's potential animal or vegetable origin.

Commonly Found In

  • limited bakery applications

Source & Origin

SyntheticEmulsifier

How to check on the label

  • Look for a recognised halal certification logo (MUIS, JAKIM, MUI, HMC or similar) on the packaging — certified products have had the source of this additive verified.
  • Check whether the label states the origin, for example 'vegetable origin', 'plant-based' or 'soy'.
  • If there is no certification and the origin is not stated, contact the manufacturer or choose a product with a halal alternative.

Frequently asked questions

Is Polyoxyethylene Stearate (E431) halal or haram?

E431 (Polyoxyethylene (40) Stearate) is doubtful for Muslims according to the MUIS food additive listing. Polyoxyethylene (40) stearate is a synthetic non-ionic emulsifier with longer ethylene oxide chains than E430.

What is E431?

Polyoxyethylene (40) stearate is a synthetic non-ionic emulsifier with longer ethylene oxide chains than E430. The doubtful classification reflects stearic acid's potential animal or vegetable origin.

Where is E431 commonly found?

E431 is commonly found in limited bakery applications.

Halal status source: MUIS Food Additive Listing ·

Information on this page is for general reference only. Halal-status data is sourced from MUIS. For current regulatory status, allergen warnings, or dietary advice, please consult your local food safety authority or a qualified professional.