I had food stored in a storm cellar, that was cracked into by a raccoon, AKA masked thief. What they couldn't eat, they shredded; and I lost thousands of dollars of prepping supplies!
This did two things; first they moved to my shoot on sight list, and second I need to recover what supplies were not destroyed.
I found this can of freeze dried chicken fettuccine that was rusted:
When they are rusted like this, with care you have a good chance of recovering the food inside!
The lid must be cleaned of rust first. I use steel wool. Then I wipe it with a wet wipe. Obviously the can opener is next, with lid removal.
The inside surface should be undamaged:
Be sure to look under the lid for damage too.
If it passes inspection, the fun begins!
Use a convenient mason jar, or jars; to hold the product inside. Using a canning funnel will help avoid spills!
You can use an oxygen absorber in each jar, but I prefer vacuum packaging. I use the vacuum adapters that go over a jar and sealing lid without a ring; and apply a Hard vacuum using a refrigeration pump! Once sealed with this hard a vacuum, there is no chance that moisture will compromise the contents.
They look much better after processing!
Remember to label them well, so you don't have to try to guess later! Here they are, ready for storage....
BTW, if you agitate the oxygen absorber from the can just opened; it will actually get warm, as a final check on a good can seal.