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canned foodHow long is canned food good after the expiration date?USDA says unopened canned food stays safe for 2 to 5 years past its date if low acid, or 12 to 18 months if high acid, as long as the can is undamaged. This guide explains how to check a can for spoilage, store it properly, and know when to toss it.Nora Ellison · Jul 26, 2026 · 6 min read