Coffee canisters preserve the bold aroma and freshness of your coffee beans. Keeping your coffee beans and grinds fresh is vital for a great cup of coffee in the morning to the last cup of the day. The best way to enjoy your coffee is highly objective one coffee lover ultimate cup of coffee might be another's worst nightmare every coffee lover has his or her own personal preference. There's not nearly as much controversy over how coffee beans should be stored, but personal preference plays a big role. Aroma is one of the best ways to measure your coffee's freshness, if you open the container of coffee beans and don’t smell the familiar and awesome smell, there's a good chance they won’t make a great cup of coffee. Exposure to oxygen will quickly diminish your coffee of its aroma and therefore bold taste. It is best to keep your coffee beans in an airtight container to limit your beans' contact with oxygen and the elements. So, keep your coffee beans fresh and full of flavor with a new coffee canister.