Standard extruded kibble is cooked at very high temperatures. The food is then baked (around 250+ degrees Celsius) to remove the moisture from steam cooking, resulting in losing many of the ingredients and to get these important ingredients back the kibble then gets sprayed with flavourings, additives and artificial colours.
Have you ever noticed after reaching inside a bag of extruded kibbled dog food you get a residue left on your hand? This is the result of having to spray back the important ingredients that they have lost with high temperature cooking.
Cold pressed dog food is made by gently cooking the ingredients used at lower temperatures (45 degrees Celsius), ensuring that no natural ingredients lose their nutritional value.