To turn dog food into powder, you can use a grinder or blender. Using a grinder: Put the dog food into the grinder and turn on the switch until the dog food turns into powder. Note that the grinder can be noisy, so it may need to be used somewhere where it won't disturb others. Using a blender: Put the dog food into the blender and turn on the switch until the dog food turns into powder. Note that the blender may also make noise, so it may need to be used somewhere where it won't disturb others. If you don't have a grinder or mixer, you can also try using other tools from the kitchen, such as an electric whisk or a small kitchen hammer.
However, these tools may not be ideal and may result in an uneven texture in the dog food. No matter which method you use, be safe and avoid contact with electrical appliances. During use, if any abnormality is found, use should be stopped immediately.