Congeners are found in larger amounts in dark liquors, such as brandy, bourbon, darker beer and red wine, than they are in clear liquors, such as vodka, ... read more
Try Bhang you will forget clear and dark liquor. Well in context of clear or dark, in my experience dark liquor gives more worse hangover. read more
Dark Liquor Makes For Worse Hangovers. A new study may help drinkers pick their poison. In a head-to-head comparison, bourbon gave drinkers a more severe hangover than vodka, report Damaris Rohsenow of Brown University and colleagues in an upcoming issue of Alcoholism: Clinical and Experimental Research. read more
If you start blending dark liquors, such as mixing red wine with brandy, you'll be ingesting different varieties of congeners from both, setting yourself up for a worse hangover than if you'd stuck with only one type of spirit. read more