I have a few things left that I canned from 2013. We are using those now. My grandmother used things she canned that were about 10 years old and no ill effect. If you are doing things right and your kitchen is clean. I always bleach down my kitchen and sinks before canning. You should be ok with it. I don’t think I would go beyond 5 years on my canned goods but these jars are some that got pushed to the back of closet and I found them when going through things. don’t know how they got there but glad I found them and we have had no ill effects from eating the few cans we did just over 5 years ago. The food taste like I just canned them. It was squash, green beans and a couple cans of chicken that I made chicken salad with. All were very tasty.
