To provide a continuous Joule heating method and apparatus which can achieve stable continuous Joule heating by preventing excessive uneven heating and extreme excessive heating near a tube wall when continuously Joule-heating a food material, and by preventing spark from being generated or the food material from deteriorating for fluid food material which causes heat denaturation caused by a laminar airflow.

The continuous Joule heating method and apparatus for food material has a plurality of circular electrodes and a plurality of spacer tubes, and a heating unit formed with an inside heated channel, and the food material is Joule-heated while being fluidly transported inside the heated channel. The continuous Joule heating method and apparatus reduce increase in temperature of a heating unit and control the temperature for every heating unit by increasing the number of heating units which compose the heated channel, when the food material causes heat denaturation inside the heated channel.