Another point that is often overlooked in food storage is that storing food is more than simply a matter of maintaining it as edible. Stored food isn't simply good or bad with no in between.

It is easy to overlook the fact that as food ages, it loses its nutritional value. It isn't only a matter of whether or not you can eat it. You also want to maintain the highest amount of nutritional value in the food as possible. Otherwise, in a longterm survival scenario, you may find yourself opening up bags of flour or rice that taste fine, but have marginal nutritional value compared to a fresher, or better stored product.

Storing food is a big investment. A year's worth of stored food for a family of 4 will typically cost 5 figures. I do not want to reduce the value of that investment simply because of where I choose to store it.