2. How is ohmic heating different from
conventional thermal processing?
During conventional thermal processing, either
in cans or aseptic processing systems for particulate
foods, significant product quality damage may occur
due to slow conduction and convection heat transfer.
On the other hand, ohmic heating volumetrically heats
the entire mass of the food material, thus the resulting
product is of far greater quality than its canned counterpart.
It is possible to process large particulate foods
(up to 1 inch) that would be difficult to process using
conventional heat exchangers. Additionally, ohmic
heater cleaning requirements are comparatively less
than those of traditional heat exchangers due to reduced
product fouling on the food contact surface.