Once you have purchased coffee, how should you keep it fresh at home?
While there are a number of opinions on how to store coffee, our best recommendation is to store whole bean coffee either in the original packaging—sealed tightly with the excess air forced out of the bag via the one-way valve—or in an airtight container that allows carbon dioxide to escape without letting oxygen in. In either case, coffee should be stored in a cool, dry space and away from direct sunlight.
Once opened, it’s best to use the coffee within a two-week period for best results.
Avoid storing opened coffee in the fridge or freezer. Do you want your coffee to taste leftovers? Coffee is very porous and easily absorbs moisture, along with any odors that may be hanging around.