I generally recommend against freezing or
even refrigerating coffee beans. I have yet to see any evidence or explanation
about how freezing coffee would delay staling of the coffee. In addition, it
creates the risk of condensation on the beans as well as exposing the coffee to
large changes in temperature, which can be destructive on its own.
So how should you store coffee beans? If we
are talking about fresh coffee that will be used up quickly, within a week or
two, then no special measures are really needed. Because freshly roasted coffee
slowly releases CO2 over the first couple of weeks, it does a pretty good job
of protecting itself against oxidation, the main culprit of staling. Keep it
out of the sun and away from sources of heat and you should be good. If you go
through your coffee slowly, say only drinking on weekends, I generally advise
the use of mason jars, which are relatively cheap, air tight and easy to clean.
The smaller the jar the better. I have found the half-pint jar hold just enough
coffee for a medium-sized pot of coffee.
Enjoy your daily cup of coffee
Harry and Colin