Is E337 Vegan? Sodium Potassium Tartrate
E337 (Sodium Potassium Tartrate) is vegan. It is derived from plant, with no animal involvement in standard food production.
Why is E337 vegan?
The source of Sodium Potassium Tartrate is plant, which is plant-derived, mineral or synthetic — all acceptable for vegans.
Is E337 vegetarian?
E337 is vegetarian.
What should vegans do about E337?
If you're avoiding Sodium Potassium Tartrate, look for products without E337 in the ingredients list.
Affiliate links — we may earn a commission at no extra cost to you.
Helpful for vegan label reading
Resources for vegans checking E-numbers like E337
Vegan Ingredient Guide
Spot hidden animal-derived E-numbers including E337 on any food label.
Vegan Label Reading
Books and pocket cards that decode E-numbers and hidden animal additives in seconds.
Certified Vegan Foods
Products with vegan certification logos — no ingredient-by-ingredient guessing.
E337 vegan FAQs
Is E337 vegan?
E337 is always vegan: plant.
Is E337 always non-vegan?
No — E337 is always vegan. It is derived from plant in all standard food uses.
How can I tell if E337 is vegan in a specific product?
You don't need to check for E337 specifically — it is always vegan. Look for vegan certification logos if you want a full product-level guarantee.
Other additives to watch for vegans
Data: Open Food Facts (ODbL). Vegan status reflects the most common source — always verify with manufacturer or look for certified vegan labelling.