Pet Food Processing
on November 11, 2012

How to: Save energy with extrusion, drying and cooling equipment

Cook 'green' with these energy-saving petfood processing systems and technologies

Running an energy-efficient petfood processing line isn't just important for the environment—it's important to your company's bottom line. Alternative cooking processes like pasteurization and direct contact steam injection can help by removing pathogens and sealing in flavor at lower cooking temperatures, while sanitation-obsessed machinery and operator-friendly cooking equipment can make processes run faster and smoother. Here are several petfood and treat extruders, dryers, coolers and cookers that will help manufacturers go 'green' in energy costs and their wallets.

Radio Frequency Company's Macrowave Pasteurization System uses a high-frequency electric field to control pathogens in petfood—a process often referred to as "lightly cooking." Utilizing clean electrical energy from the grid, the petfood formula to be treated is conveyed through a high-frequency electrode array where the alternating electrical energy causes the material to heat rapidly and uniformly throughout the product thickness, according to the company.

Radio Frequency heating is a highly efficient, "direct" form of heating such that no energy is wasted heating large volumes of air or preheating the system itself. The technology is "instant-on, instant-off," using energy only during the treatment process. This green technology line of Macrowave Pasteurization Systems operate at 40MHz, ensuring effective microbe kill and avoiding the deleterious effects on product quality from prolonged exposure to high temperatures. These systems from Radio Frequency are available in conveyorized or batch configurations.

Petfood Steam Cooker Systems from Hydro-Thermal feature a unique, 100% energy-efficient heating process called direct steam injection (DSI). According to the company, DSI heating is a general term…

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