Re: New hookah breakin?
I believe the coating is a polish residue. Bad stuff to inhale, could make you feel ill. So wash it out good. Make sure to get the ports and inside the purge. Also to make them purge better I would recommend changing the metal bb to a plastic airsoft bb. I did this with all of mine and it purges much better now. I agree to that you should rinse the bowl and the vase to get the dust and dirt that may have settled on the parts from storage.
After that.... smoke away.
At my age being cynical and sarcastic is just making small talk.