How long can milk be left out before it needs to be discarded?

Milk can safely be left out at room temperature for a maximum of about 2 hours. Beyond this time frame, the risk of bacterial growth increases significantly, which can lead to spoilage and potential foodborne illnesses.

The correct response indicates a longer timeframe, suggesting that it could be left out for 4 hours. This is not advisable, as it exceeds the safe duration for leaving perishable items like milk unrefrigerated. Understanding this time limit is crucial for food safety, as consuming milk that has been left out too long can lead to health risks. It's important to prioritize proper food storage practices to ensure safety and freshness.