FAST BOILER : 5 minutes only takes to boil 1.7L water (1.7L = 6~7 cup of water). British STRIX thermostat controller, auto shut-down within 30s when water boiled. Protection against dry burning, it will auto shut-down if there is no water in the kettle. 304 STAINLESS STEEL & BPA Free: Thickened stainless steel inner and the plastic parts inside are make of food grade plastic. The removable filter layer which can prevent splashing and. All plastic components in contact with water is made of food grade PP which is BPA Free.