Climate is the decisive factor of coffee planting. Coffee trees are only suitable for growing in tropical or subtropical regions, so the zone between 25 degrees north and south latitude is the most suitable for coffee planting. This coffee producing area is generally called "coffee belt" or "coffee area".
However, not all the land located in this area can cultivate excellent coffee trees. The most ideal planting conditions for coffee trees are: a warm climate with the temperature between 15-25℃, and the annual rainfall must reach1500-2000mm, and the rainfall time should match the flowering cycle of coffee trees. Of course, in addition to the coordination of seasons and rainfall, there must be fertile soil. The most suitable soil for coffee cultivation is fertile soil with good drainage and volcanic ash.
In addition, although sunlight is an indispensable factor for the growth and fruiting of coffee, too strong sunlight will affect the growth of coffee trees, so various producing areas usually cooperate with planting some shade trees, and generally plant more plants with higher trunks such as bananas, mangoes and leguminous plants. The ideal altitude is 500-2000 meters. Therefore, the quality of Jamaican Blue Mountain coffee grown at an altitude of 800-1200m is the best. It can be seen that the conditions for cultivating high-quality coffee are quite strict: sunshine, rainfall, soil, temperature, and the way and process of harvesting coffee beans will all affect the quality of coffee itself.