Coffee beans are the seeds of red or yellow coffee berries growing on evergreen trees near the equator and in the tropics. The main growing regions are Latin America, Africa and Asia, therefore, depending on the season, coffee enters the stock exchange from the Southern hemisphere (in April — August) or the Northern Hemisphere (in September — March). The taste of coffee is influenced by a number of factors: the height of the plantation, the composition of the soil, the number of sunny days per year, humidity and precipitation, so the grain of one variety can vary greatly in taste depending on the place of cultivation.
Two types of coffee are grown on an industrial scale: Robusta and Arabica. The first grows on the plains and contains twice as much caffeine, but its taste is simpler and prone to bitterness, so Arabica is considered more valuable, which grows at an altitude of 800 to 2 thousand meters above sea level in more difficult climatic conditions.