The ideal way to purchase coffee should be in whole bean form. Coffee in this form lasts at least 4 times as long as ground coffee. Regardless in how is purchased; coffee should always be placed in an air tide container after opening the bag and stored it in a refrigerator or freezer. Always make sure to close the storage container air tight as any contact with air or oxygen will deteriorate the quality of the coffee. Coffee in whole bean form stored in a freezer will lasts up to 6 months without losing any noticeable quality.