| 摘要 |
PURPOSE:To make it possible to sale also high viscosity can drinks such as soup and 'SHIRUKO' (adzuki-beans sweet soup) having slow convection by correcting the output of a high frequency power converter in accordance with the temperature of a can wall and correcting a heating time in accordance with the corrected output. CONSTITUTION:Since the convection of the contents of a high viscosity drink can such as a soup and 'SHIRUKO' is slow and the can wall temperature is abnormally raised, the can wall temperature is detected by a can wall temperature detecting means 8 and the output of the high frequency power converter 4 is corrected by an output control means 10 so that the can wall temperature is suppressed less than a prescribed temperature. Since the heating time should be also corrected to raise the can drink up to the prescribed temperature due to the change of an output, an output signal from the means 10 is inputted to a heating time control means 11 to correct the heating time. The output of the converter 4 and the correction of the heating time are repeatedly executed so as to suppress the can wall temperature less than the prescribed temperature. Thus, the can wall can be prevented from being burnt due to the abnormal rise of the can wall temperature and the can drink 1 can be heated up to a prescribed temperature to sale it. |
