Mormons have quite a bit of experience with storing foods. Many use this place. The fellows above made some pretty good recommendations, too.

If you have deep-freeze ability, a vacuum-seal machine might help. It's a little pricey, IMO, and they "get" you ($$)) on bags replacement; OTOH, I ate a Seal-a-meal steak that was bagged in 2005, last week (my widowed step-Dad is a kinda-survivalist).