Write the next sentence in the following story.

How to start a hookah
Clean the hookah.
Even if the hookah is brand new, clean it to remove any foreign flavors and chemicals. Scrub every piece of the hookah with a soft brush, except for the non-washable hoses.
It's easiest to clean the hookah right after each smoking session, instead of leaving residue to dry. At minimum, clean after every fourth or fifth session.