Black coffee is bitter if nothing is added, but it can also make people taste its original flavor. Because coffee itself is bitter, but it tastes mellow. If you savor it carefully, you will feel endless aftertaste, so some people just like the original flavor without sugar or milk, and the mellow aftertaste fascinates them even more.
Some people like to drink black coffee without milk or sugar, mainly because coffee without anything can taste the original flavor of coffee beans, and such drinks will be memorable. And some people just want to use the bitter taste of black coffee to stimulate their nerves and make themselves more awake. Most importantly, black coffee is a famous magic weapon to lose weight.