E931

E931 is a protein-based film-forming agent derived from milk. It is produced by processing milk proteins, typically caseinates, into a soluble form that can be sprayed onto food surfaces.

Manufacturers add E931 to create a protective, edible coating on foods. This coating helps to extend shelf life by reducing moisture loss and oxidation, and can also improve texture. It is commonly found in whipped creams, squirty creams, and some non-alcoholic beers.

E931 is authorised as a food additive in Great Britain and is listed on the Register of Food Additive Authorisations. European food safety authorities have evaluated its use. At typical intake levels found in food, it is not expected to pose a health risk. There are no widely recognised health controversies associated with its use.