What happens to ingredients in commercial kibble before added fats/vitamins?

Answer

They are processed together and cooked.

Commercial kibble, known as dry food, undergoes a specific manufacturing process to achieve its final shelf-stable form. This process typically begins with combining the raw ingredients, which are then subjected to cooking processes under heat and pressure. Following this cooking and processing stage, the final dry product has fats, vitamins, and minerals sprayed onto the exterior coating. Because fats are added post-cooking, dry foods inherently require the inclusion of preservatives to prevent these surface fats from spoiling over time.

What happens to ingredients in commercial kibble before added fats/vitamins?
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