How to tell if coffee is caffeinated or not?
                                
                                
                                •
                                
                                
                        
                                    
                                    5 min read                                
                            
                                Studies reveal that up to 30% of decaf coffee served in coffeehouses and restaurants contains unacceptably high levels of caffeine, or isn't decaf at all. This fact makes it crucial to know how to verify your brew's caffeine content, especially for those who are caffeine-sensitive.