Reusing shelves after death?

Is it safe to reuse wood shelves after the death of a chin. If so, how should they be cleaned, etc.



I'm taking apart the cage of a chin who passed away earlier this month and was going to toss the shelves out but my dad ask me why not reuse them in some of my other cages, or in a cage upgrade.

So I thought no harm in finding out. I think he just doesn't want to make so many shelves.



Thanks in Advance.