All the varieties of Robusta

Robusta seeds account for 25 -35% of coffee bean production, and their main producing country is Indonesia (One of its coffee beans is a water-washed coffee bean, a hybrid of Robusta and Arabica, and the only coffee bean on the Chinese market that can be drunk as a single product), Vietnam, Africa,(West African countries centered on Ivory Coast, Nigeria and Angola). In recent years, Vietnam has devoted itself to coffee production and listed it in the national policy.(Vietnam also produces a small part of Arabica coffee beans. Robusta coffee tree is a kind of tree between shrub and tall tree. Its leaves are longer and bright green. The tree can reach up to 10 meters tall, but its roots are very shallow. The fruit is slightly round than Arabica coffee. The bean body is flat and the center pit is straight.

Robusta beans can have a distinctive aroma (known as "rob flavor", some people say it's a musty smell) and bitterness, and if mixed with other coffees at 2-3%, the entire cup of coffee becomes rob flavor (therefore, Robusta beans are not drinkable as single-serve beans). Its flavor is as bright as some strong, but if you want to taste it directly, I am afraid you have to be mentally prepared. Robusta coffee is generally used in industrial coffee production such as instant coffee (which produces about twice the amount of coffee extracted from Arabica), canned coffee, and liquid coffee. The caffeine content is much higher than that of Arabica, which is about 3.2%