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  2. Glazing Agents, Gases, Sweeteners

E904 Shellac

What is Shellac (E904)?

E904, commonly referred to as shellac, is a resin secreted by the female lac bug and is used as a glazing agent in food products, particularly on confectionery, fruits, and nuts. It creates a glossy finish, preserves freshness, and provides a protective layer to prevent moisture loss.


Why do I have an intolerance?

Intolerance to shellac could be due to sensitivity to resin-based compounds or to shellac itself, which is derived from insect secretions. Individuals with allergies to insects or insect-derived products may experience reactions such as digestive upset, skin irritation, or respiratory issues when consuming foods coated with shellac.


What can I do about it?

To manage this intolerance, avoid foods that contain E904 by checking product labels for glazing agents. Opt for fresh produce or foods that do not rely on synthetic coatings. Organic products may offer alternatives that do not use shellac as a finishing agent.