I put away a small stash of ramen noodles the other day. You know, the cheap imported ones in the plastic packs.
Yesterday I got one out and it had gone moldy. So had the others.
Morals: check your food supplies occasionally, and it's a good idea to rotate stock. I'd forgotten that some things have a limited storage life, so I can't just stuff a box in the closet and forget about it. You need to have your stash reasonably close to your kitchen, so you can shift old and new stock as needed.
The proper thing to do would be to appropriate one or more of the kitchen cabinets for this purpose, but my wife has already filled them with her "good" dishes we never get to use, and crap neither of us will eat, but she refuses to discard.
Even the best-laid plans fall short of the reality of life-as-we-know-it...