Understanding Coffee Beans: Are coffee beans 100% caffeine?
                                
                                
                                •
                                
                                
                        
                                    
                                    5 min read                                
                            
                                Less than 5% of a coffee bean's total weight is caffeine, which means they are far from being 100% caffeine. Instead, these small seeds are a complex mix of carbohydrates, fats, proteins, and a host of other compounds that contribute to their unique flavor and nutritional profile.