Forkin
E451IRestricted useIn 1,108 productsTypically vegan

Pentasodium triphosphate

Function: Emulsifier

E451I is the European food-additive number for Pentasodium triphosphate, an emulsifier — helps ingredients that normally separate, like oil and water, stay mixed. Pentasodium triphosphate (E451i) is an emulsifier used as a food additive.

What is E451I used for?

Pentasodium triphosphate (E451I) 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 E451I safe or restricted?

E451I faces restrictions under EU rules on how, where, or in what quantities it may be used. Forkin classifies it as Restricted use 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 E451I vegan or vegetarian?

Pentasodium triphosphate (E451I) is typically produced from plant, mineral, or synthetic sources, so it is generally suitable for vegans and vegetarians.

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 E451I?

E451I appears in 1,108 of the 4.7 million products in Forkin's catalogue — most often in sausages, pork (general) and ham.

  • Sausages146
  • Pork (General)106
  • Ham87
  • Chicken (General)67
  • Chorizo / Sausage48
  • Turkey Breast38
  • Pâté34
  • Salami / Chorizo30

Often appears alongside

Additives most frequently found in the same ingredient lists as E451I 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 E451I

What is E451I?
E451I is the E-number for Pentasodium triphosphate, an emulsifier — helps ingredients that normally separate, like oil and water, stay mixed. Pentasodium triphosphate (E451i) is an emulsifier used as a food additive.
What is E451I used for?
Pentasodium triphosphate (E451I) 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 E451I?
E451I appears in 1,108 of the 4.7 million products in Forkin's catalogue — most often in sausages, pork (general) and ham. Scan any barcode with the Forkin app to see instantly whether a specific product contains it.
Is E451I vegan or vegetarian?
Pentasodium triphosphate (E451I) is typically produced from plant, mineral, or synthetic sources, so it is generally suitable for vegans and vegetarians. The Forkin app shows the verified vegan and vegetarian status per product, since the source can vary between manufacturers.
Is E451I safe, and is it banned anywhere?
E451I faces restrictions under EU rules on how, where, or in what quantities it may be used. Forkin classifies it as "Restricted use" 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 E451I — 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.