Which method is NOT a safe way to store food?

Storing food at room temperature for extended periods is not a safe method for food storage due to the risk of bacterial growth. Many types of food, especially perishable items, can become unsafe if they are left out for too long. The temperature range between 40°F and 140°F is known as the "danger zone," where bacteria can multiply rapidly.

In contrast, the other methods of storing food are safe practices. Using clean containers helps to prevent contamination, while airtight containers reduce exposure to air and moisture, thereby extending the shelf life of leftovers. Keeping food in its original packaging, as long as it’s undamaged, ensures that the food is still protected and maintains its quality. Therefore, understanding proper food storage methods is crucial for food safety and to prevent foodborne illnesses.