I would recommend against buying long-term storage flour (whether wheat or corn.) When you grind it, you are breaking the storage system God created apart, and the clock starts ticking. They will both go bad rather quickly. If you want long term flour and cornmeal storage (and you do) get a good grain mill and store wheat berries and field/dent corn. Both store as well as polished rice -- if you can keep the water and the pests out, it will last virtually forever. The flour and cornmeal will be bad within 5-8 years. Also, if you want to plant more wheat or corn, you can do it from your food stores (this is where the phrase "eating your seed corn" comes from -- not leaving enough back to replant.) The butter is a good point. Red Feather canned butter all the way. The clock may be ticking on that, though, since NZ is currently going insane.