Ottevanger vacuum coaters for animal feed are used to add high percentages of liquid to pellets and extrudates. Numerous industries use the batch system in the production of:
- fish food: addition of pigments, micro-ingredients and oil up to approx. 30%
- pet food: addition of micro-ingredients, aromas, fats and oils up to 17%
- animal feed: addition of phytase enzymes and vegetable oils up to 8%.
The main advantage of this system is that the liquid penetrates into the core of the pellet or the extrudate after the product has undergone all the mechanical and thermal processes. This prevents the loss of valuable active ingredients.