Is it safe to eat 40 year old gum?
                                
                                
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                                    4 min read                                
                            
                                Chewing gum is a non-perishable product, and in most countries, manufacturers aren't even required to print an expiration date due to its low moisture content. While this stability prevents microbial growth, it doesn't mean a piece of 40-year-old gum is a pleasant treat.