What is E 999?
E 999 is the E number of Quillaia extract. Extract from the bark of the Chilean soapbark tree. It is used as a foaming agent, for example in soft drinks such as ginger beer.
What is E 999 used for?
E 999 belongs to the group "Other additives" and is used as foaming agent.
- Foaming agent: Foaming agents make it possible to disperse a gas evenly in a food, forming foam.
Which foods may contain E 999?
According to the European Commission's database, E 999 may be used in 4 food categories and subcategories, each only in specific products and usually with maximum levels. The categories come from these areas:
- Beverages
- Food supplements
Is E 999 vegan?
Usually yes: the substance is normally made from plant, mineral or synthetic raw materials or with microorganisms. In individual cases, only the manufacturer or a vegan label can give certainty.
Is E 999 linked to genetic engineering?
No typical link to genetic engineering is known for this substance: it is not usually obtained from plants for which GM varieties exist, nor produced by fermentation.
How does E 999 appear on the label?
In the list of ingredients, the substance appears with its function, followed by the E number or the name, for example "Foaming agent: E 999" or "Foaming agent: Quillaia extract".
Sources
- Regulation (EC) No 1333/2008, consolidated version of 18.08.2026, Annexes I and II, EUR-Lex
- Food Additives Database, European Commission (accessed 19 October 2026)