A bottle of Southern Comfort behind a glass
The Reason Southern Comfort Is Not A True Whiskey
Southern Comfort describes itself as a mix of whiskey with fruits and spices. While that may be true, it's a bit misleading, as Southern Comfort isn't a true whiskey.
This issue was further complicated when Sazerac purchased Southern Comfort in 2016, which announced that Southern Comfort would be made using real whiskey starting in 2017.
The previous company, Brown-Forman, had been using a neutral grain spirit (similar to vodka) as the base for decades, which qualified Southern Comfort as a liqueur.
So, even though Southern Comfort includes whiskey as an ingredient, it's technically a liqueur with a whiskey base, meaning it has more in common with a premixed cocktail.