What is the required ambient air temperature in coolers or transport vehicles that contain eggs?

The required ambient air temperature in coolers or transport vehicles that contain eggs must be maintained at 45°F (7°C) to ensure the safety and quality of the eggs. This temperature is crucial because it helps to minimize the risk of bacterial growth and spoilage, which can significantly impact food safety and product integrity.

Eggs can be vulnerable to pathogens such as Salmonella, and keeping them at a temperature below 45°F is effective in controlling the proliferation of these pathogens. The temperature allows for proper preservation while preventing condensation inside the packaging, which can also lead to spoilage by creating an environment where bacteria can thrive.

Some temperatures listed in the other choices, such as 32°F (0°C) and 40°F (4°C), are not suitable for storing and transporting eggs due to potential issues like freezing, which could damage the eggs and compromise their quality. Meanwhile, a temperature of 50°F (10°C) would not adequately protect the eggs from bacterial growth, increasing the risk of foodborne illness. Thus, the established standard of 45°F strikes a balance between safety and quality, making it the correct response.