Many people have asked us for the best way to store longer-term storage. There is no one "best way", but I'll share some preferred methods that we have.
You can use #10 cans. This is optimal for longer-term storage - it will stay good for years and years, and it's easy to transfer. You can order food already in #10 cans from LDS Catalog (prices include shipping). If you live near a cannery, you can go there and can up your own rice, and that's cheaper, but not everyone has this option. My mother-in-law's stake owns 4 canners that people can "check out" and use in their own homes. Check out our post on how to can your own food in #10 cans.
Another option for storage is in foil pouches. To read more about foil pouch storage, click here.
Finally, longer-term foods can also be stored in buckets. I know many people who keep their bags of rice, wheat, etc. in sealed 5-gallon buckets. Just be sure that the top is on tightly to keep rodents and bugs out. To read more about storage in buckets, click here.
Good luck with your longer-term storage!