E500Stabiliser · Thickener

Sodium carbonates

What the research shows

Not enough

published research on this page yet

A white, odorless salt that dissolves in water and gives alkaline solutions.12

  • Vegan
  • Vegetarian
  • EU permitted

What research says

How it’s made and used

  • Mouth feel of food3

    In lab studies, sodium carbonates reduced how green tea flavanols stick to salivary proteins.

  • Shrimp cooking yield4

    In shrimp, soaking in sodium carbonates increased weight and cooking yield and reduced cooking loss as pH rose.

The signal at the top counts the findings in people and in animal and lab studies. A concern in studies of people outranks animal and lab studies, and “No concerns” needs at least one finding in people. When most findings in people point one way, the page leans that way (“Mostly”), and every finding is still shown. Findings whose study type is not stated are shown but not counted. This page is a reference, not medical advice. It describes what regulators and published research say. Talk to a doctor or dietitian about your own diet.

Regulatory status

Checked Sep 2026

Status reflects the named register on the date checked. It is not a safety rating.

How we check

Products

The 6 most-scanned of 49,481 products on Open Food Facts that list sodium carbonates.

  • Prince Goût Chocolat au blé complet Mondelez · 300 g 3 additives
  • Sésame Gerblé · 230 g 4 additives
  • levure pâtisserie 80 g 2 additives
  • Biscuits croquants au coeur onctueux de Nutella® nutella · 304 g 5 additives
  • Sablés Anglais L'Original McVitie's · 400 g 3 additives
  • Granola L'Original LU · 200 g e 5 additives

References

  1. 1Sodium carbonates: ingredient taxonomy entry. Open Food Facts.
  2. 2Sodium carbonate. Wikipedia. Accessed September 26, 2026. CC BY-SA 4.0.
  3. 3Jesus M, Bravo C, Guerreiro C, et al. Impact of food additives (sodium carbonate and ammonium bicarbonate) on interactions between astringent compounds and an oral cell model. Food Chem. 2025;467:142337. doi:10.1016/j.foodchem.2024.142337
  4. 4Chantarasuwan C, Benjakul S, Visessanguan W. Effects of sodium carbonate and sodium bicarbonate on yield and characteristics of Pacific white shrimp (Litopenaeus vannamei). Food Sci Technol Int. 2011;17(4):403-14. doi:10.1177/1082013211398802