What do 2 people do with a #10 can of food? How long does it last after it’s opened?
If you can keep humidity out of the can, it will usually last several months. If you wish, you can open the #10 can and portion out the food in jars or small mylar bags. Add an oxygen absorber and seal.
You can put an oxygen absorber in it to make it last longer or, you can put a small hole in the top of the lid use your food saver to draw the oxygen out and cover with tape (you've got to be quick!).