The coffee tree only produces coffee beans for several years. The structure text describes the structure diagram of the roaster.

The coffee tree only produces coffee beans for several years. The structure text describes the structure diagram of the roaster.

The first flowering period of the coffee tree is about three years. The five-petal tube-shaped white flowers are filled with a faint scent of jasmine, and the inflorescences are arranged in dense clusters. It will wither after two or three days of flowering and begin to bear fruit after a few months. The fruit is a drupe with a diameter of about 1.5cm. It is green at first, then turns yellow gradually, turns red when ripe, and is very similar to cherry, so it is called cherry coffee (Coffee Cherry). It can be harvested at this time.

Coffee fruit contains two seeds, namely coffee beans. The two beans are connected face to face with each other on one side of the plane. Each coffee bean has a thin outer film, which is called silver skin, and its outer layer is covered with a yellow outer skin, called endocarp. The whole coffee bean is wrapped in a sticky pulp to form the coffee pulp, which is soft and sweet, with the outer shell.

Coffee trees can only grow in the tropics and subtropics. Coffee trees can grow in different climates, soils, elevations and rainfall in the middle of the "coffee belt". Coffee trees thrive in the hot and humid canyons and forest rainforests of Africa; it still produces high-quality coffee beans in cold, foggy, windy Central America; and in the Caribbean, where the climate is changeable, drought and torrential rain, it still blossoms and bears fruit. These factors are the secret that coffee beans have different flavors and a wide variety.

Most of the coffee harvesting in the world is selected by hand, so it is a labor-intensive and seasonally intensive process. Since there are both flowers and fruits on the same branch, the index finger and thumb of the collector are the best tools for collecting ripe berries. Scraping the fruit off a whole branch by hand or using an automated harvester can't tell ripe berries from green berries.