Which of the following is the ideal storage temperature for milk in a refrigerator?

The ideal storage temperature for milk in a refrigerator is 4 degrees Celsius. This temperature is optimal for slowing down the growth of bacteria that can spoil the milk and reduce its shelf life. At 4 degrees Celsius, the milk remains safe to drink for a longer period while retaining its quality and freshness.

Lower temperatures, such as those below 0 degrees Celsius, can cause milk to freeze, leading to changes in texture and flavor once it thaws. Conversely, temperatures higher than 4 degrees can promote the growth of harmful bacteria, increasing the risk of foodborne illnesses and reducing the milk's shelf life. Maintaining milk at the recommended temperature ensures food safety and quality.