If this link doesn't work, search for "Long term food storage part 1" at www.youtube.com

They go through dry grain storage with 5 Gallon Buckets, Mylar Bags, Heat Sealers, Oxygen Absorbers and Storage Times (whole grains 20 to 30 years they claim).

Really, you can find a lot of good information on food storage on YouTube. Use Search Terms like Food Storage, Dehydrated Foods, Shelf Life, LDS Food Storage, etc.