Potassium silicate
What is Potassium silicate?
Potassium silicate is an inorganic chemical compound, a salt of potassium and silicic acid. It is typically produced by reacting potassium carbonate with silica (silicon dioxide) at high temperatures. It is often supplied as a liquid solution.
Is Potassium silicate vegan?
Potassium silicate is not animal-derived. Products that contain it can still include other animal-derived ingredients, so check the full ingredient list.
Is Potassium silicate a major allergen?
Potassium silicate is not derived from any of the 14 major allergens that UK law requires to be emphasised on food labels.
What is Potassium silicate used for?
In the food industry, potassium silicate is primarily used as an anti-caking agent, preventing powdered foods from clumping together.
Is Potassium silicate safe?
Potassium silicate is authorised as a food additive in Great Britain and is listed on the Register of Food Additive Authorisations.
Why it's used
In the food industry, potassium silicate is primarily used as an anti-caking agent, preventing powdered foods from clumping together. It can also function as a glazing agent for certain food products. It is found in some baked goods and confectionery.
Health notes
Potassium silicate is authorised as a food additive in Great Britain and is listed on the Register of Food Additive Authorisations. The European Food Safety Authority (EFSA) has evaluated potassium silicate. JECFA (Joint FAO/WHO Expert Committee on Food Additives) has also evaluated it and set an acceptable daily intake. At typical intake levels found in food, it is not associated with adverse health effects.
Allergen info
Potassium silicate is not derived from any of the 14 major allergens that UK law requires to be emphasised on food labels. Not a major allergen.
Foods that contain Potassium silicate
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