Excellent Insulation Performance -Drink dispenser utilizes a seamless double-wall insulation system to maintain your drinks at the desired temperature for extended periods. At an ambient temperature of 20 C 5 C, 100 C hot water cools by only 2 C per hour. Additionally, when filled with a 1:1 ratio of 4 C ice water mixture, ice cubes show virtually no melting within the first 6 hours. The one-piece seamless double-wall construction ensures your beverages whether hot or cold consistently maintain their ideal temperature. 5-Gallon Large Capacity Design -Coffee dispenser holds 5 gallons (19 liters), making it ideal for various group settings like parties, events, or commercial use. Water dispenser generous capacity minimizes the need for frequent refills, and a full dispenser provides approximately 33 servings of 18.6oz beverages.