Can will rust in time as said above.... so....
For long term, although not really accessible, pour into vac sealer bags and toss out can???
Just askin, could be a mess.
But IF it could be done, w/o a disaster, could be great for long term storage.
For that matter, actually, the vacuum was dumb...same end result - Freezer duty heavy Ziplock bag, purged of all or at least most air, put gently in a coffee can for physical protection.
Maybe double bag, cause for very long term, that plastic is more permeable than most realize.
Ya, I like that best of all.
Marc