Ohmic pilot plant

 

Heater Cells

Ohmic heating is a process where an electric potential is applied across a food product so that current passes through the food itself.

 

 

 

 

 

 

In ohmic heating, the food is the heating element (unlike a toaster, for example, which has heating elements that get hot from current flowing through them, and then the heat is transferred to the toast by radiant and conduction/convection heat transfer).  The result is faster, more uniform heating of the food and a potential for a more fresh-tasting, nutritious product.

 

 

It is important to have accurate electrical conductivity data when designing an ohmic process for a given food product.  Here is a video of the basics of measuring electrical conductivity:

Electrical conductivity measurement video