| 摘要 |
Disclosed is an electric heating device for heating a fluid food material, for example, a liquid food material with high viscosity such as mayonnaise or the like, and a solid-liquid mixed food material such as a mixture of tea powder, coffee powder or the like and water, in which a solid and a liquid are mixed. The heating device includes a cylindrical container body having the bottom end thereof and containing the fluid food material. A cylindrical outer electrode is mounted in this container body, and an inner electrode, having an outer circumferential surface opposite to the inner circumferential surface of the outer electrode, is arranged at the center of the container body. An electric power is supplied from a power supply to the inner electrode and the outer electrode, and an electric current flows through the food material injected in the container body, whereby the food material is heated by the Joule heat. In heating the food material, the inner electrode is relatively rotated relative to the container body. Therefore, the food material flows in a circumferential direction in the container body due to its viscosity, and thus the adhesion of the food material to the electrode can be prevented.
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