Most people make a mistake and throw away the box. The correct way to read expiration or best before dates

Canned corn is a staple in many households. The good news is that canned corn is often safe to use for an extended period beyond the 'use by' date. If the can is undamaged and properly stored in a cool, dry place, canned corn can remain safe for up to 1 to 2 years past its 'use by' date. However, the quality, texture, and flavor may gradually deteriorate over time.
To ensure canned corn is safe to eat, inspect the can for signs of damage, such as bulging, rust, or leaking. If the can is damaged in any way, do not use the product.
Canned Green Beans
Canned green beans are another common pantry staple. Like canned corn, these vegetables are also safe to eat past their 'use by' date. Properly stored canned green beans can remain safe to eat for up to 1 to 2 years after the date shown. Quality may decline over time, with a potential loss of texture and flavor.

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