How should eggs be stored to ensure safety?

Storing eggs in the refrigerator at a temperature of 40°F (4°C) or below is crucial for maintaining their safety and preventing the growth of harmful bacteria, particularly Salmonella. Refrigeration slows down bacterial growth significantly, keeping eggs safe for consumption over a longer period. The recommended storage temperature ensures that eggs remain fresh and minimizes the risk of foodborne illness.

Other options, such as keeping eggs at room temperature, may lead to a higher risk of bacterial growth, especially in warm conditions. Storing eggs in the freezer can alter their texture and quality, making them unsuitable for many culinary applications, even though it's technically a method of preserving them. Lastly, storing eggs in a cupboard away from sunlight does not provide the necessary cool conditions ideal for safe storage and may fail to protect them from temperature fluctuations that can lead to spoilage. Thus, refrigeration is the best practice for ensuring that eggs are stored safely.