Arabica is the most common variety of coffee. There is another species, Robusta, that is far less delicious (if you’ve had Vietnamese coffee without the condens

Arabica is the most common variety of coffee. There is another species, Robusta, that is far less delicious (if you’ve had Vietnamese coffee without the condensed milk, that’s often robusta) and is resistant to coffee rust. It also contains more caffeine. There are groups trying to make hybrids between them which is actually what I suspect is happening in this article.