Three native species of coffee tree-Famine shipwreck Coffee Tree Code

Generally speaking, Robusta beans are poor in taste, have 2 to 3 times the caffeine content of Arabica beans, and are cheap, mostly for the large coffee industry to produce instant coffee or low-cost comprehensive products. The coffee trees planted in Arabica are suitable for planting on fertile hillsides with good drainage at an altitude of about 1,000 to 2,000 meters. The climate for growth should not be too humid, but it still requires a continuous rainy season and abundant rainfall.

During the day, they like mild but not very hot temperatures and less than two hours of direct sunshine, so if they lack the afternoon showers or thick fog to report every day, local farmers have to plant many taller trees in the coffee garden for shade. At night, they want an environment of about ten degrees Celsius but not too low, because too warm will make the coffee berries grow too fast to produce small, strong, hard and high-quality coffee beans; if it is too cold to frost, the coffee trees will freeze to death.

The varieties that have become popular in recent years, belonging to the Ironka family, were obscure transplanted from the geisha mountains of southwest Ethiopia to Kenya, Tanzania and Costa Rica in 1913 and to Panama in the 1960s. it took half a century or so to make a splash, defeating Bourbon, Kaddura, Kaduai, Iron pickup and other victorious generals, and sold for $130per pound in 2007, ranking first on the list of high-priced boutique beans for several years.

Arabica coffee accounts for 75%-80%. Its excellent flavor and aroma make it the only coffee that can be drunk directly among these native species. But its resistance to dryness, frost, diseases and insect pests is too low, especially the natural enemy of coffee-leaf rust.

Arabica coffee beans are mainly grown in South America (except parts of Argentina and Brazil), Central America, Africa (Kenya, Ethiopia, etc.), Asia (including parts of Yemen, India and Papua New Guinea)