The shelf life of coffee beans is one to two years. Under the premise of keeping the environment dry and without light, the shelf life of coffee beans is about one year, and the longest shelf life of coffee beans is as long as two years. When coffee beans are wet, they will deteriorate rapidly. Coffee beans refer to the fruits of plants used to make coffee. Broadly speaking, there are two kinds of coffee beans in the world, Arabica beans and Robberstad beans. The fruit of coffee is composed of two oval seeds. One side connected with each other is a flat joint, which is called flat bean. But there is also a round seed, called round bean, which has no different taste. Although the shelf life of coffee beans is very long, the shelf life of coffee beans is very short. The shelf life of coffee beans is only 2-3 weeks. As time goes on, the fresh fragrance in coffee beans will gradually be oxidized and lost. When buying coffee beans, don't buy too much, just sell as much as you drink, so that the flavor is better.