If needed, you can grind cat food in a blender. But you must first cover the food with a large quantity of water or stew and let it rest for a bit. If not, you'll get food that has been mashed rather than mixed. Maintaining the texture when you're using the blender is something else we advise. When you blend dry cat food, you'll see you need more water but don't put a lot that makes it soupier.