How long can perishable food be left out at room temperature?

Perishable food should not be left out at room temperature for more than 2 hours, and this limit is reduced to just 1 hour if the ambient temperature exceeds 90°F (32°C). This guideline is based on food safety principles aimed at preventing the growth of harmful bacteria that can cause foodborne illnesses.

At temperatures between 40°F and 140°F (4°C and 60°C), known as the "danger zone," bacteria can multiply rapidly. Therefore, it's crucial to limit the time food stays in this temperature range. After the specified time limits, the risk of food spoilage and foodborne illnesses increases significantly, leading to potential health hazards.

While other options suggest longer durations for leaving food out, they do not align with established food safety guidelines, which emphasize minimizing the time perishable items spend at room temperature to ensure safety.