The shelf life of coffee beans is one to two years. Under the premise of keeping the environment dry and dark, the shelf life of coffee beans is about one year, and the longest shelf life of coffee beans is as long as two years. Coffee beans go bad quickly when they are wet. 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 Robusta beans. The fruit of coffee consists of two oval seeds. One side connected to each other is a flat joint, called lentil. 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 aroma in coffee beans will be gradually oxidized and lost. When buying coffee beans, don't buy too much, sell as much as you drink, so it tastes better.