I used to can a lot, with green beans you have to pressure cook them and should be ok, I have had some of ours for years. Also canned applesauce and still have some, I use them for my applesauce cakes, more flavor than store canned applesauce. we canned other things also, but now it is just mostly the two of use. Also we have canned spac. Sauce with out the meat, as long as the top are sealed well and I agree with the smell they should be ok. If you are afraid of it, open the jars and dump what is in it. You can always reuse the jars, with new lids of course.