Any grain loves a cool, dry place to live! Mainly, you'll want to keep them safe from heat, air and moisture, whether ground or not. You'll want to consider investing in some glass, ceramic, metal or plastic containers with lids for this purpose. An airtight seal is important! The shelf life for ground products is around 2-3 months for most grains, but if you seal it and keep it in the freezer, then you can extend that to about 6 months. On the other hand, for products that aren't ground, you can keep them for about 6 months in the cupboard and up to a year in your freezer.