Pour hot water in a container and pour it on the hot tub steps. Then, wipe the steps down with a rag. This works well if the hot tub is outdoors.
Moisten a towel with hot water and wipe the steps down. This works well for a hot tub that is indoors where you cannot pour hot water on them.
Scrub the steps with a nylon scrub brush. Dip the scrub brush in hot water and the chlorine residue should come off. If not, mix in 1 to 2 cups of vinegar for every gallon of water and continue to scrub the steps after dipping the brush in the vinegar solution.
Dry the steps with an absorbent towel to remove any remaining residue and to dry the area near the steps, if applicable.