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Open almost any pantry and you’ll find it: a dusty can of beans, soup, or vegetables tucked behind newer groceries. When people notice the date stamped on the label has passed, the instinct is usually to throw it away. But is that can really dangerous—or just misunderstood?
For illustrative purposes only
Expiration Dates: What They Really Mean
Best By / Best Before: These mark peak flavor and texture, not safety.
Sell By: For retailers to manage stock, not for consumers.
Use By: Linked to safety, but rarely applied to canned goods.
In short, the date on a can is about quality, not whether the food suddenly becomes unsafe.
Why Canned Food Lasts So Long
Canning involves heating food to kill bacteria, sealing it airtight, and protecting it from light and oxygen. This creates an environment where harmful microorganisms can’t thrive. That’s why canned food has been a staple in emergency kits, military rations, and humanitarian aid for decades.
How Long Does It Really Last?
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