What is considered high proof for bourbon? A definitive guide
                                
                                
                                •
                                
                                
                        
                                    
                                    6 min read                                
                            
                                Bourbon, by U.S. law, must be bottled at no less than 80 proof, but many coveted expressions soar far beyond this minimum. This higher alcohol content, often a result of the aging process, significantly influences the bourbon's character, flavor, and intensity.