What is the best way to store coffee beans and ground coffee?!

Store the whole roasted coffee beans in any kind of airtight container that is not clear glass. Ceramic is often used successfully. Avoid storing coffee beans in clear glass. Sunlight and heat will increase the rate at which the beans will decay. Do not store more than one or two week's worth of coffee at one time. If you must store more than this, store it in the freezer. Don't allow the coffee to become exposed to any moisture while in the freezer. This is accomplished by using an airtight canister for storage. If this isn't possible, use a plastic zipper bag. Suck all of the air out of the zipper bag by pressing it out and finalizing the process with a straw. After you get as much air out as possible, seal the bag. Next you must wrap the bag in plastic wrap and aluminum foil to keep the moisture out.

Store coffee beans airtight and in an opaque container in the refrigerator

Store coffee grounds airtight and in an opaque container in the freezer

It is best to buy whole beans and grind them yourself. The best grinder is a Burr grinder.

Friend with owners of an independent coffee shop

cool, dry place in an airtight container. No freezing, no refrigeration