Foods Containing E555 (Potassium Aluminium Silicate)
E555 (Potassium Aluminium Silicate) is a anti caking agent (mineral) used in table salt, icing sugar. Here are the foods where you'll find it on the label.
Common foods that contain E555
- table salt
- icing sugar
- dried soups
- baking powder
- powdered drinks
- seasoning mixes
In the UK and EU, E555 must be declared either as "E555" or as "Potassium Aluminium Silicate" in the ingredients list.
Is E555 safe?
E555 is authorised in the EU and UK but carries genuine concerns. EFSA's 2020 re-evaluation of E555 concluded that its safety could not be fully assessed, due to limited toxicological data — and calculated that realistic exposure to aluminium from some of its uses could exceed the Tolerable Weekly Intake (TWI) of 1mg aluminium per kg body weight set for aluminium-containing additives as a group. For most people consuming Potassium Aluminium Silicate in typical quantities, health effects are unlikely — but the caution flag reflects either active scientific debate, mandatory warning labels, allergen status, or conditions attached to its authorisation.
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Reduce or replace E555
Products relevant to E555 and your dietary choices
Food Sensitivity Test
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Additive-Free Cookbook
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Food Sensitivity Diary
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Frequently asked questions
What foods contain E555?
E555 (Potassium Aluminium Silicate) is commonly found in table salt, icing sugar, dried soups, baking powder, powdered drinks. It must be declared on UK/EU labels as either "E555" or "Potassium Aluminium Silicate".
Is E555 safe?
E555 is authorised in the EU and UK but carries genuine concerns. EFSA's 2020 re-evaluation of E555 concluded that its safety could not be fully assessed, due to limited toxicological data — and calculated that realistic exposure to aluminium from some of its uses could exceed the Tolerable Weekly Intake (TWI) of 1mg aluminium per kg body weight set for aluminium-containing additives as a group. For most people consuming Potassium Aluminium Silicate in typical quantities, health effects are unlikely — but the caution flag reflects either active scientific debate, mandatory warning labels, allergen status, or conditions attached to its authorisation.
Is E555 vegan?
E555 is always vegan: mineral.
Data: Open Food Facts (ODbL) · EFSA