I forgot to mention a few things when I posted the first round. In no particular order:

1. Powdered milk in the box = iffy. It looked sort of yellowed and smelled odd, it may have been OK but I’m recommending buying it an a vacuum sealed can. I need to break some of this out (I have that as well) and see if it is usable, I hate to blindly assume it’s OK.

2. Potato flakes in a box = fail. This was a 24 month in my pantry test, I made some up and noticed it was not white and tasted like used gym socks. Same thing as the milk, go with the #10 cans and test every few years. Maybe better at 60F, I dunno.

3. #10 cans= win. Even with a half-assed plastic box wrap in a really humid place, none of the cans showed any rust or degradation. I’ve since sealed the space, and ziplocked/dessicant bagged so I should be good for another 25.