A refrigerated container, often called a reefer, is a type of shipping container designed to transport perishable goods at controlled temperatures. These containers are equipped with a refrigeration unit that maintains a specific temperature range, ensuring that items like fruits, vegetables, dairy products, and pharmaceuticals remain fresh during transit. Refrigerated containers are commonly used in the shipping industry, particularly for international trade. They can be loaded onto cargo ships, trucks, or trains, making them versatile for transporting goods across long distances. This technology plays a crucial role in the global supply chain, helping to reduce food waste and maintain product quality.