To provide a frier which can save electric power of a heating means since a conventional constitution does not include a mechanism for keeping oil warm, that makes an electric heater to frequently generate heat to keep the oil at the predetermined temperature, increasing the power consumption of the electric heater.

The frier 1 includes: an oil tank 2; and a heater 3 which is arranged in the oil tank 2 and heats the oil, in which a heat storage body 51 having heat capacity for keeping the oil temperature at the predetermined temperature for the predetermined time is arranged at the bottom 2A of the oil tank 2, and the heater 3 is arranged on the heat storage body 51.