A walk-in cooler is a large refrigeration unit designed to store perishable items at low temperatures. These coolers are commonly used in restaurants, grocery stores, and warehouses to keep food and beverages fresh. They can be accessed through a door and often have adjustable shelving to accommodate various products. Walk-in coolers operate using a refrigeration system that maintains a consistent temperature, typically between 32°F and 50°F (0°C to 10°C). They are energy-efficient and can be customized in size and layout to fit specific storage needs, making them essential for businesses that require bulk storage of perishable goods.