Food Storage - How long can you keep...


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18 months (best quality)


  • How long does frozen lasagna last? The precise answer to that question depends to a large extent on storage conditions - keep lasagna frozen at all times.
  • Properly stored, frozen lasagna will maintain best quality for about 18 months in the freezer.
  • Is frozen lasagna safe to eat after the expiration date on the package? Yes, if properly stored - commercially frozen lasagna will typically carry a Best By," "Best if Used By," Best Before, or "Best When Used By" date but this is not a safety date, it is the manufacturer's estimate of how long the lasagna will remain at peak quality.
  • How long will frozen lasagna remain safe to eat? Frozen lasagna that has been kept constantly frozen at 0°F will keep safe indefinitely, as long as it has been stored properly and the package is not damaged.
  • How long does frozen lasagna last at room temperature? Bacteria grow rapidly at temperatures between 40 °F and 140 °F; frozen lasagna should be discarded if left for more than 2 hours at room temperature.
  • How long does frozen lasagna last in the fridge after being cooked? Frozen lasagna that has been cooked can be kept for 3 to 5 days in the fridge; refrigerate the lasagna in airtight containers or wrap tightly in aluminum foil or plastic wrap.
  • How to tell if cooked lasagna is bad or spoiled? If cooked lasagna develops an off odor, flavor or appearance, or if mold appears, it should be discarded.

Sources: For details about data sources used for food storage information, please click here

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