Does the subject want to ask, "Is the shelf life of coffee beans 22 years?" The shelf life of coffee beans is not 22 years. The normal shelf life of coffee beans is as long as two years, and the shelf life can be extended as long as it is properly preserved. However, if coffee beans are wet, they will deteriorate rapidly. Coffee beans can be stored for more than two years when they are kept dry and not roasted. During roasting, the oil of coffee beans will move to the surface and quickly deteriorate. Therefore, after roasting, the storage method becomes particularly important. After roasting, the whole coffee beans that release oil can be placed in a closed container and stored in a cool and dry room temperature environment. Under this condition, the whole coffee beans can be stored for one month. Coffee bean refers to the plant fruit used to make coffee. Broadly speaking, there are two kinds of coffee beans in the world, Arabica bean and Robberstad bean. The fruit of coffee is composed of two oval seeds, and the connecting side is flat, which is called flat bean, but there are also a round seed, which is called round bean, and its taste is no different. Even in the same producing country, coffee beans will subtly affect the flavor and quality of coffee beans and produce their own characteristics because of the differences in climate, altitude and soil quality in different regions. The earliest way for Arabs to eat coffee was to chew the whole fruit to absorb its juice.