Hey SpringCreekCoffee! Regarding the best coffee packaging, that really depends on your specific needs. Will you be selling a lot of coffee? If so, tins and jars may not be the best choice since they take up a lot of space for storage. However, they're an awesome option for smaller runs of your really special coffees like an amazing geisha or special holiday blend. But for the normal, day to day coffee sales, flexible packaging is a solid choice. Roastar can hook you up with a designer at roastar.com/find-designer to help you make your packaging stand out and tell your marketing story.
Since coffee needs to de-gas after roasting, you can get custom coffee bags with many different options to fit your packaging needs like degassing valves. Also tin ties, tear notches, and re-sealable zippers for maintaining freshness after opening.