Robusta is very different from Arabica in many ways.
The first and foremost aspect is the level of caffeine. Robusta has almost TWICE the caffeine as Arabica. Many people feel jittery and have heart palpitations after drinking Robusta. Many people who have experienced this think that they are overly sensitive to the caffeine in coffee. They have never tried Arabica and mistakenly think all coffee will result in the unpleasantness they experienced drinking Robusta.
Arabica’s aroma and flavor are more varied than Robusta. In general, the aroma and flavor of Arabica can be described as; sweet, nutty, chocolatey, citrusy, etc. Whereas Robusta is often described as; earthy, bitter, and acidic.
The price of Arabica, where I live, is 4 times the price of Robusta. Arabica is a more desired coffee and surpasses Robusta in terms of taste, aroma, and feeling in the body.
See full Quora thread
