1. If unopened coffee beans can be put in the refrigerator, the oxidation speed of coffee beans will inevitably slow down.

2. When unpacking bagged coffee beans, be sure to fold the opening and clamp it with a clip to prevent the coffee beans from contacting the air, and then store them in a dry and cool place.

3. When scooping coffee beans, use a long spoon and reach into the bottom of the container to scoop beans, so as to avoid the rapid loss of carbon dioxide.