A "Cold Chain" refers to a temperature-controlled supply chain that is essential for preserving the quality and safety of perishable goods. This system is crucial for transporting items like food, pharmaceuticals, and vaccines, ensuring they remain at specific temperatures throughout the journey. By maintaining these low temperatures, the risk of spoilage and contamination is significantly reduced. The Cold Chain involves various stages, including storage, transportation, and distribution. Specialized equipment, such as refrigerated trucks and temperature-controlled warehouses, is used to keep products within the required temperature range. This process is vital for industries like food safety and healthcare, where maintaining product integrity is paramount.