Processing methods

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In the rendering of animal by-product process the following processing methods are used either batch or continuous.

Sterilization of animal by-products

The sterilization process kills all forms of microbial life, including transmissible agents. Our sterilization system sterilizes the animal by-products for it to be save to handle. This is all been done conform Regulation (EC) No 1069/2009. For the batch sterilization process we use Batch Cookers and for the continuous sterilization process we use a Continuous Sterilizer.

Hydrolyzing of feather by-products

Hydrolyzing is a chemical process in which a molecule of water is added to, in this case, the feather by-products. This addition of water causes both substance and water molecule to split into two parts. In other words the feathers fall apart. When the products are hydrolyzed they are not simultaneously dried. For the batch hydrolyzation process we use Batch Cookers and for the continuous hydrolyzation process we use a Continuous hydrolyzor™.

Coagulating of blood by-products

Coagulation is the process by which blood forms clots. For the coagulated process we use a Blood Coagulator®.

Drying of animal by-products:
Drying is the process to evaporate the water that’s inside the animal by-products. For the batch drying process we use Batch Cookers and for the continuous drying process we use a Supercookor®, Disc Dryer/Cooker (Discor)®, Ring Dryer, Airless Ringdryer or Drumdryer.


Mavitec is the partner for rendering animal by-products, as exclusive representative of The Dupps Company, U.S.A. they have installed many installations worldwide for decades. From both Poultry or Red meat by-products our installations create the best possible end-product in the market for whole meal, feather meal, blood meal, Meat and bone meal, tallow, fat and oils.

The standard product line consist of Batch/continuous Cookers, Presses, Hammer mills, Condensers, Air treatment system, Bins and conveyors. Due to our extensive network we are able to make installations designed to clients preferences.