Using the Nella double food warmer is easy. First, plug it into a suitable electrical outlet using the NEMA 5 - 15P plug. Then, set the adjustable thermostat to your desired temperature between 30° and 90° Celsius. Place your food in the compartments, and it will stay warm until you're ready to serve. When you're done, let the warmer cool down completely. To clean it, use a mild detergent and a soft cloth. Avoid using abrasive materials that could scratch the high - quality exterior. Keep the warmer in a dry place to maintain its durability. Don't overload the compartments beyond the 8 - liter capacity per side. And always make sure the electrical supply matches the 120V/60/1 specification.