When it comes to food labels, nothing confuses people more than those little dates stamped on the package. You grab a can of corn, see “Best By” last month, and suddenly you’re stuck wondering—do I toss it or is it still safe? The truth is, most people misunderstand what these dates actually mean, and it’s costing them good food and money.
Here’s the reality: a “Best By” date isn’t the same as an expiration date. It’s the manufacturer’s way of telling you how long the product will taste its absolute best. It’s about quality, not safety. In fact, canned foods can often be eaten well beyond that printed date if they’ve been stored correctly.
How Long Canned Foods Really Last
Canned Corn
That pantry staple can last up to two years past its “Best By” date if stored in a cool, dry place and the can is free of damage. The flavor or texture might change a bit, but it’s still safe to eat.
Canned Green Beans
Just like corn, green beans can stay safe for about two years beyond the date on the label, as long as the can is intact. You might notice a slight drop in quality, but they’re still fine to use in soups or casseroles.
Canned Tuna
This protein powerhouse lasts even longer. Properly stored, canned tuna is generally safe for three to five years past its “Best By” date. The taste might not be as sharp over time, but it remains perfectly safe to eat.
Quick Safety Checklist Before Eating Canned Food
Even if a can is within the safe range, always check before you dig in:
- Inspect the can: Toss it if it’s bulging, leaking, rusted, or badly dented.
- Check the contents: If it smells strange, looks discolored, or the texture seems off, don’t risk it.
- Trust your instincts: When in doubt, throw it out.
Smart Storage Tips to Maximize Shelf Life
Keeping your cans in the right conditions can extend their life and protect their quality:
- Store in a cool, dark, and dry place—avoid heat, humidity, and direct sunlight.
- Keep cans upright to protect the seals.
- Practice first in, first out—rotate your stock so older cans get used first.
- Handle cans carefully to prevent dents or damage.
- Once opened, transfer leftovers to a sealed container in the fridge. Never store food in the opened can itself.
The Bottom Line
Don’t let the “Best By” date fool you into wasting perfectly good food. Canned goods like corn and green beans often last two years past the date, while tuna can stretch three to five years. As long as the cans are stored properly and show no signs of damage, you can safely enjoy them long after that little stamp on the lid.
By understanding what those dates really mean, you’ll cut down on food waste, save money, and make the most of your pantry staples.
