Abstract: Magnetic resonance imaging as a nondestructive technique, is used widely in the food processing and quality controlling. Ohmic heating is very suitable for the particulate foods and liquid-particulate foods. But it is always very difficult to measure the course of Ohmic heating. MRI is a good tool to quickly determine the temperature of Ohmic heating foods. So, we can use MRI to draw the instantaneous temperature distribution map, and develop the mathematical model of Ohmic heating, and found the basis of industrialized Ohmic heating.

Key words: MRI, Ohmic heating, temperature mapping, foods