What is Proper 12 in Alcohol? A Guide to Conor McGregor's Irish Whiskey
                                
                                
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                                    3 min read                                
                            
                                Launched in 2018 by MMA star Conor McGregor, Proper No. Twelve became one of the fastest-growing Irish whiskey brands in the U.S. market, largely due to its high-profile celebrity founder. This blended Irish whiskey has since established itself as a major player in the global spirits industry.