To show you the true face of coffee.

Small and round dark brown coffee beans, quietly emitting a fragrant fragrance in the grinder, injected into the cup showing the beautiful color of amber, these are the three very deep impressions of coffee. As you explore the history and beauty of coffee, you can also see the coffee trees that are caressed by the tropical sun and whose leaves twinkle. It has a small white flower similar to jasmine, its fruit from green to yellow-green, and finally to red, coffee beans are the seeds in its fruit.

Moreover, if you go to the coffee bean refinery, you will surely see the red pulp called coffee cherry and the fresh and green coffee raw beans with the endocarp and silver skin removed. These are the coffee beans for export. The fruit of coffee is dark green at birth, goes through yellow and red, and finally becomes a crimson ripe fruit. A normal fruit contains a pair of seeds, which are "coffee beans". After baking and cooking, and then adding all kinds of seasonings, it has become a colorful coffee world popular all over the world.

There are more than 70 kinds of coffee in the world, and there are 3 to 5 kinds of coffee mainly cultivated in China. ① small seed species, also known as Arabica coffee, is native to Ethiopia and is cultivated in Taiwan, Fujian, Guangdong, Guangxi, Yunnan and Sichuan. Shrub, 4 to 6 meters high, with many branches in the basal part; the leaves are thin leathery, ovate-lanceolate or lanceolate, entire or wavy, and the terminal buds are green or bronzed, so they are known as green-top coffee and red-top coffee. The flower is white, the fruit is many and small, the seed coat is thicker, and it is easy to separate from the kernel. There are many varieties, good quality, mellow smell, medium yield, cold tolerance, drought tolerance, but weak disease resistance. ② seed, also known as Ganfella coffee, is native to the African Congo rainforest and is distributed at low elevations between 10 °S and N, mainly in Southeast Asian countries. China is mainly cultivated in Hainan Island, and a small amount has been planted in Xishuangbanna, Yunnan Province. Small evergreen trees, 5-8 m tall, branched high, leaf blade large, thickly papery, ovate-oblong or lanceolate, margin entire or shallowly undulate. The flowers are white, sometimes reddish, and bear much fruit. The fruit is oblate or oval, purplish red when ripe, the pericarp, pulp and seed coat are thin, and the seed coat and pericarp are not easy to fall off. This species has shallow roots, weak branches, the most avoid strong winds, but strong resistance to diseases and insect pests. The product is strong and fragrant with strong irritation. ③ large-grained species, also known as Liberian coffee, is native to the lowland forests of Liberia on the west coast of Africa, widely planted in tropical low-altitude areas, and a small amount in Hainan Island, China. Evergreen trees, up to 10 m tall, branches spreading. Leaves thickly leathery, large, elliptic, Obovate-elliptic, margin entire. The flowers are white and the fruit is few. Generally, there are only 3-6 flowers in a section. The fruit is large and reddish when ripe, with a hard and thick rind and pulp. The main root is thick and long, drought-resistant, wind-resistant and cold-resistant, but it is weak in disease resistance and is most likely to be infected with leaf rust. The taste of the product is strong and hot, the irritation is big, the quality is poor.

As we have already said, the two most popular coffee on the market are Coffea Arabica and Coffea Robusta. The price of the former is higher, while the price of the latter is lower, so it is mostly acquired as the raw material of instant coffee. Compared with the appearance of Arabica coffee raw beans and Robusta coffee raw beans, the difference is quite obvious. Arabica is longer, flatter, more complete and greener; Robusta is more round, thicker and whiter. Both varieties of coffee trees need plenty of sunlight and water. Arabica coffee trees like the seasonal climate of 15: 24 ℃, while Robasta coffee trees like the warm equatorial climate. The temperature in this area is stable in the range of 24-29 ℃. When the temperature drops below zero, both kinds of trees will freeze to death. Volcanic soil is the favorite soil for coffee trees, which provides almost all the nutrients for coffee trees to grow. In addition to the necessary temperature, humidity and altitude are also an important indicator of coffee growth, Robasta is generally grown in lowlands about 500 meters above sea level, while Arabica is suitable for highlands between 800 and 2000 meters above sea level.