The varieties of coffee can be roughly divided into Arabica and Kenne Frau species. Keny Frau species, also known as Robusta species. Today, one way valve just tell you about the characteristics of these two kinds of coffee.
The Arabica is native to Ethiopia. Arabica coffee tree is very afraid of plant diseases and insect pests. At the same time, it also needs a lot of water. If it is dry or frost and other bad weather conditions, it is easy to die. Arabica coffee tree is quite fragile, but it has a considerable number of homologous varieties. Most of these same varieties, the use of occasional mutations, choose the genetic characteristics of better varieties planted. So, when you find the usual drink arabica coffee mixed with two or more varieties, please do not be surprised.
Contrary to the Arabica, Robusta grows fast and is resistant to pests. Congo, is the origin of Robusta species. In the area where the Arabica can not be planted, you can often see the traces of Robusta. Although Robusta is not as arrogant as arabica, but its slightly sour and earth flavor so many coffee lovers intoxicated. Robusta coffee beans are generally used as raw materials for instant coffee.
In the caffeine content, Robusta coffee than arabica coffee more than doubled. So the occasional coffee people, if you drink robester coffee, then it is easy to cause palpitations and insomnia.