What are the causes of egg spoilage?

Egg spoilage is primarily caused by microbial growth, particularly bacteria such as Salmonella. Factors contributing to spoilage include improper storage temperatures, which can accelerate bacterial growth, and the natural degradation of the egg's protective coating over time. Additionally, exposure to moisture and air can lead to the deterioration of the egg's quality and flavor. Lastly, cracks or damage to the shell can provide an entry point for pathogens, further increasing spoilage risk.