Electric conductivity is a crucial factor in ohmic heating, many different researchers reported the electric conductivity for differ- ent materials includes fresh fruits under ohmic heating such as apple, pineapple, pear, strawberry and peach which their electric thermal conductivity in the range from (0.05 to 1.2) S/m [17,18], pure water has poor electric conductivity, and it is around 0.055 μS/cm. The ions in solution control electric current trans- port, collection of electric conductivity for different material are listed below in Table 2