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 customized in size and layout to fit specific needs and are typically made of insulated panels to maintain a consistent temperature. Walk-in coolers operate using a refrigeration system that circulates cool air throughout the space. They often feature heavy-duty doors for easy access and may include shelving for organized storage. Proper maintenance is essential to ensure efficiency and longevity, making them a vital component in food safety and preservation.