Seal it up as best you can. Vacuum sealed food storage bags with oxygen absorber tabs are a great option. You could also use food grade silicate bags or a few grains of dry rice to absorb moisture in the bag. Store cool, dry and dark if you can. Pretty much the same procedure for any grains, and it's best to use them within six months to a year.
Beer so good, it's frightening.
2014: Seven Heavens Series One: Vilon, Mystic Melomel, Skeeter Pee.