Multicooker UNITED. This 12-liter multicooker can be expanded to 15 liters using an extension ring. It can replace several other kitchen appliances, thereby saving valuable counter space. With the right settings, it serves as a yogurt maker, oven, steamer, and deep fryer. Cooking is faster and healthier than using a standard pot or frying pan. A glass section allows you to monitor the cooking process without removing the lid.