Extrusion steps?

Ingredient Mixing: Raw ingredients, such as meat, grains, vitamins, and minerals, are mixed together in specific proportions. High Heat and Pressure: The mixed ingredients are fed into the extruder, where they are subjected to high heat (typically 90-150°C) and pressure. This heat causes starches to gelatinize and proteins to cook, which makes the food more digestible. Shaping and Cutting: The heated mixture is forced through a die, which shapes it into the desired form (e.g., small round or square pieces for kibble). As the mixture exits the extruder, it expands and is cut into bite-sized pieces. Drying: The shaped pieces are then dried to remove excess moisture and improve shelf life. Coating: Finally, fats, oils, or flavorings may be sprayed onto the surface of the food to enhance taste and palatability.

How it applies?

While extrusion makes it easier to produce shelf-stable pet food, the high heat destroys some nutrients. To compensate, manufacturers often add vitamins and minerals to the food after extrusion.

Additional info?

As there is no way to "reverse" extruded kibble, there is always the option to add fresh food to your pet's diet. Adding water, kefir, bone broth, or goat milk will rehydrate kibble that lost all of its moisture during the extrusion process!