Ever notice those little holes in the bags we ship our coffee in? Believe it or not, we actually take the time to punch them into every bag. This allows the coffee to breathe during shipping and in your green coffee storage area.
Air circulation is important. In humid environments, condensation can form in an airtight bag or container since the moisture both in the coffee and around it has nowhere to go but if you live in an environment with stable temperature, you shouldn't have to worry. Some folks like to store green coffee in cloth bags which we think is an excellent method for large amounts and longer storage times but the plastic bags you receive your coffee in work very well too.
The best way to keep your coffee fresh is to simply roast, brew and drink it within a month or so after it gets to your doorstep. Leave it to us to worry about bulk storage. We are lucky to have a warehouse that is very stable in temperature. It does get a little cold during the winter but never too hot during the summer.