What is E904 Made of? A Detailed Guide to Shellac
                                
                                
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                                    3 min read                                
                            
                                Approximately 300,000 female lac bugs are required to produce just one kilogram of E904, a food additive commonly known as shellac. Often labeled as 'confectioner's glaze' or 'resinous glaze,' understanding the origin of this shiny ingredient is crucial for many consumers.