This coffee urn offers consumers unparalleled brew speed and capacity. It's the ultimate brew master for large gatherings, allowing for up to 55 cups of coffee ready to serve in only 35 minutes. The two-heater system brews coffee and then keeps it warm at the optimal temperatures. Includes a removable sight glass. Commercially approved. Limited one-year warranty. For decades, Waring was best known for its blenders. In fact, Dr. Jonas Salk relied on Waring blenders to prepare culture materials for his revolutionary polio vaccine. The company continues to emphasize precision, innovation, and reliability when manufacturing not just blenders but all its kitchen appliances, which are used in some of the world’s busiest and most renowned restaurants and hotels, as well as in the kitchens of discerning home chefs.