Synthetic Wax
Also known as: E905, Hydrocarbon wax, Fischer-Tropsch wax
EFSA's 2013 re-evaluation concluded that microcrystalline wax (E905) at maximum permitted use levels (quantum satis) presents a sufficient margin of safety based on the NOAEL for closely related high-viscosity mineral oils. EU Commission Regulation 231/2012 sets specifications including a benzo(a)pyrene limit of 50 μg/kg to control PAH contamination.
What it is
Synthetic wax / microcrystalline wax (E905); refined hydrocarbons (branched isoalkanes) from petroleum refining.
Used as a glazing agent, surface treatment, and protective coating on confectionery and fresh fruits.
Why it's flagged
- potential polycyclic aromatic hydrocarbon (PAH) contamination if not refined to specifications
What regulators actually say
"The conservative exposure estimates to microcrystalline wax (E 905) from its use at maximum permitted level (following quantum satis rules), resulted in a sufficient margin of safety compared to the NOAEL established by the Panel for the closely related high viscosity mineral oils, and therefore the use microcrystalline wax (E 905) as a food additive with the currently authorised uses would not be of safety concern."
Regulatory status
United States — FDA
FDA permits microcrystalline wax under 21 CFR 172.886 for food use.
European Union — EFSA
Approved EU food additive E905; quantum satis use; specifications include benzo(a)pyrene limit.
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