How long can soup sit in an open can?

It's not safe to leave soup in an open can for any extended period. Here's why:

* Bacteria Growth: Open cans expose the soup to air, which can introduce bacteria. Bacteria can quickly multiply at room temperature, potentially causing food poisoning.

* Oxidation: The soup will start to oxidize, changing its flavor, color, and texture.

* Metal Contamination: Leaving the soup in the can for too long can increase the risk of metal leaching into the food.

Instead of leaving soup in an open can, consider these options:

* Transfer to an airtight container: This helps prevent contamination and oxidation.

* Refrigerate promptly: Store the soup in the refrigerator within two hours of opening.

* Freeze for later: Freeze the soup in an airtight container for longer storage.

Remember: When in doubt, it's always safer to err on the side of caution and discard the soup if you're unsure about its safety.