You've never heard a long, extended Vault-Co rant about rolled oats? You have not been surfing this site long enough!
My personal, firsthand experience with 12+ year old food has told me things I didn't otherwise read in books anywhere.
Some foods have special qualities. The books say 5-10 years. I'm telling you, stored correctly, some of this stuff will go 20, 30 and 40+ years.
1. Powdered whole milk lasts infinity plus if kept cool, dry and out of light. Infinity. Forget about "3-5 years" like they mark on the bag. I'm still drinking powdered milk from 1996. There is just no appreciable difference.
2. Shredded wheat is eternity food if kept dry and cool.
3. Rolled oats, a very nutritious food, last damn near forever even when stored in less than ideal conditions. That and brown sugar would weather many a famine as a staple.
4. White rice, of course. It never goes off if kept dry.
Still under observation ... powdered eggs, sardines, many others.
Use mylar bags and oxygen absorbers, then keep them in a cool location. That food may outlast you. I would swear to this in an affidavit if asked.