Q: How old must kittens be before they can move on to dry food?

A: When they're about a year old, you can start giving them dry food.

Now, here's an important point, and one you should not forget:

Sawdust does not count as dry food.

I know you have barrels of it, and nothing to do with it, but please, for the love of God, stop feeding it to the kittens.

There's no room left in my septic tank.