Sodium potassium tartrate
Learn what Sodium potassium tartrate (E337) is, why it's added to food, whether it's safe, and which products contain it.
Generally recognized as safeWhat is Sodium potassium tartrate?
A food additive classified as an antioxidant, acidity regulator, and also functions as an emulsifier. Known as 'Seignette salt' or 'Rochelle salt', it is used in quantities specified by recipes in chocolate and cocoa products, jams, jellies, marmalades, fruit juices, nectars, fruit juice concentrates, chewing gum, etc.
Why is Sodium potassium tartrate added to food?
Sodium potassium tartrate (E337) is a emulsifier commonly found in: Cakes, marmalades, juices.
Permitted quantity: The acceptable daily intake for human consumption of tartrates is up to 30 mg/kg body weight.
Is Sodium potassium tartrate safe?
Generally recognized as safe
Large doses can cause gastrointestinal disturbances, with laxative and diuretic effects. It is much less toxic than tartaric acid (E 334).
Is Sodium potassium tartrate banned anywhere?
✓ Not currently banned in the EU or known to be restricted in other countries.
Is Sodium potassium tartrate okay for kids?
Not allowed in foods intended for infants and young children.
Common foods that contain Sodium potassium tartrate
- Cakes
- marmalades
- juices
See the full list of foods that contain Sodium potassium tartrate →
How to spot Sodium potassium tartrate on labels
Look for any of these names in the ingredients list:
- E337
- Sodium potassium tartrate
Common misspellings to watch for:
- sodium dotassium tartrate
- sodium potassium tdrtrate
- sodium potassium tartrdte
- sodium potassium tartrate
- $odium potassium tartrate
- sodium potas$ium tartrate
- sodium pota$sium tartrate
- sodium potasslum tartrate
- sodium potdssium tartrate
- sodlum potassium tartrate
Better alternatives
• Individuals with gastrointestinal or renal conditions should avoid this additive, as high doses can exacerbate symptoms of these diseases. • Not recommended for individuals sensitive to sodium or potassium salts, as they may experience adverse reactions to these components. • Should not be consumed by infants and young children, as it is prohibited in foods intended for them. • Can interfere with diuretic or laxative treatments, amplifying their effects.
Also known as
- sodium dotassium tartrate
- sodium potassium tdrtrate
- sodium potassium tartrdte
- sodium potassium tartrate
- $odium potassium tartrate
- sodium potas$ium tartrate
- sodium pota$sium tartrate
- sodium potasslum tartrate
- sodium potdssium tartrate
- sodlum potassium tartrate
Scan products with BioBrief
Not sure if a product contains Sodium potassium tartrate? BioBrief scans the barcode and instantly shows you every additive in the ingredients list — including E337 — with a plain-language explanation.
Frequently asked questions about Sodium potassium tartrate
- Is Sodium potassium tartrate safe to eat?
- Large doses can cause gastrointestinal disturbances, with laxative and diuretic effects. It is much less toxic than tartaric acid (E 334).
- Is Sodium potassium tartrate banned anywhere?
- Sodium potassium tartrate is not currently banned in the EU or known to be restricted in other countries.
- Is Sodium potassium tartrate safe for children?
- Not allowed in foods intended for infants and young children.
- How do I spot Sodium potassium tartrate on a food label?
- Look for E337, Sodium potassium tartrate in the ingredients list. It may also appear as: sodium dotassium tartrate, sodium potassium tdrtrate, sodium potassium tartrdte.
Ingredients change. Always check the actual product label before purchasing. Information on this page is for educational purposes only.