Forkin
E336Under monitoringIn 1,390 productsTypically vegan

Potassium tartrates

Function: Food Additive

E336 is the European food-additive number for Potassium tartrates. Potassium tartrates (E336) is a food additive used as a food additive.

Is E336 safe or restricted?

E336 is approved for use in the EU. It sits among the additives EFSA keeps under ongoing review as new evidence is published. Forkin classifies it as Under monitoring 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 E336 vegan or vegetarian?

Potassium tartrates (E336) 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 E336?

E336 appears in 1,390 of the 4.7 million products in Forkin's catalogue — most often in cakes, biscuits & cookies and chocolate candy.

  • Cakes119
  • Biscuits & Cookies62
  • Chocolate Candy55
  • Food Coloring / Decorations48
  • Baby Snacks / Puffs45
  • Crackers40
  • Cake Mixes39
  • Pastry38

Often appears alongside

Additives most frequently found in the same ingredient lists as E336 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 E336

What is E336?
E336 is the E-number for Potassium tartrates. Potassium tartrates (E336) is a food additive used as a food additive.
Which foods contain E336?
E336 appears in 1,390 of the 4.7 million products in Forkin's catalogue — most often in cakes, biscuits & cookies and chocolate candy. Scan any barcode with the Forkin app to see instantly whether a specific product contains it.
Is E336 vegan or vegetarian?
Potassium tartrates (E336) 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 E336 safe, and is it banned anywhere?
E336 is approved for use in the EU. It sits among the additives EFSA keeps under ongoing review as new evidence is published. Forkin classifies it as "Under monitoring" 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 E336 — 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 (Food Additive)

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.