The Ibis heating element is in direct contact with the water so no energy gets lost in metal bodies as with traditional pans and kettles. With its oval shape, this handy one-piece kettle is designed to have a permanent place at the kitchen counter using a minimum of space. Made of a heat- reinforced polypropylene plastic and a stainless steel heating element, it is an indispensable and practical everyday tool for cooking - and certainly when a fast boil is needed. Whether it is 10 oz or 27 oz the Bodum kettle will automatically cut off power after the water boils for a short while.