Common sense of coffee beans

1, through the smell: put the coffee beans near the nose, smell deeply, whether you can clearly smell the aroma of coffee, if so, it means that the coffee is very fresh. On the contrary, if the smell is light and boring, it is stale coffee beans. Coffee beans like this, no matter you spend more time studying, you can't make a good cup of coffee.

2. By watching: put the coffee beans on your hand, and confirm whether the coffee beans are roasted evenly by understanding the origin and variety of coffee beans.

3. By hand peeling: take a coffee bean and try to peel it off by hand. If the coffee bean is fresh enough, it should be able to peel off easily and have a crisp sound and feeling. If the coffee beans are not fresh, it will be difficult for you to peel them off. Another key to peeling coffee beans is that we can observe whether the coffee beans are roasted evenly. Uniform firepower will make the outer skin of the coffee bean the same color as the inner layer. If the color of the surface is obviously darker than the inner layer, it may be too big when roasted, which will affect the aroma and flavor of the coffee bean.