How long are canned green beans good for after ex date?

Canned green beans can typically be safe to eat for 1 to 3 years after the expiration date, provided the can is undamaged and stored properly in a cool, dry place. However, while they may still be safe, the quality in terms of taste and texture may decline over time. Always check for any signs of spoilage, such as bulging, rust, or off smells, before consuming. When in doubt, it's best to err on the side of caution and discard them.