Potassium phosphates
Function: Emulsifier
E340 is the European food-additive number for Potassium phosphates, an emulsifier — helps ingredients that normally separate, like oil and water, stay mixed. Potassium phosphates (E340) is an emulsifier used as a food additive.
What is E340 used for?
Potassium phosphates (E340) 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 E340 safe or restricted?
E340 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 E340 vegan or vegetarian?
Potassium phosphates (E340) 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 E340?
E340 appears in 5,863 of the 4.6 million products in Forkin's catalogue — most often in protein powder / shake, instant coffee and electrolyte / sports drink.
- Protein Powder / Shake533
- Instant Coffee532
- Electrolyte / Sports Drink352
- Baby Formula (Powder)190
- Energy Drink187
- Dietary Supplements156
- Oat Milk150
- Pastry148
Often appears alongside
Additives most frequently found in the same ingredient lists as E340 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 E340
- What is E340?
- E340 is the E-number for Potassium phosphates, an emulsifier — helps ingredients that normally separate, like oil and water, stay mixed. Potassium phosphates (E340) is an emulsifier used as a food additive.
- What is E340 used for?
- Potassium phosphates (E340) 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 E340?
- E340 appears in 5,863 of the 4.6 million products in Forkin's catalogue — most often in protein powder / shake, instant coffee and electrolyte / sports drink. Scan any barcode with the Forkin app to see instantly whether a specific product contains it.
- Is E340 vegan or vegetarian?
- Potassium phosphates (E340) 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 E340 safe, and is it banned anywhere?
- E340 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 E340 — acceptable daily intake (ADI), restrictions by country, vegan/vegetarian status, alternative names, and which products in your scan history contain it. See how Forkin compares to other scanners or view pricing.