How long does lasagna that is vacuum sealed last at room temperature?

Vacuum-sealed lasagna should not be stored at room temperature for an extended period, as it can lead to bacterial growth and spoilage. Generally, it is recommended to refrigerate or freeze lasagna for safe storage. If left at room temperature, it should be consumed within 2 hours to prevent foodborne illness. For optimal safety and quality, always refrigerate or freeze leftovers promptly.