Originally Posted by hookahman1988
For everyone on here that owns a tri-metal or duel tone hookah, if your your looking for a natural and quick way to polish the copper on your hookah just make a paste out of lemon juice and salt and then apply to a towel and proceed to clean your hookah. When your finished wipe it off with a damp cloth and dry. I just did this on mine and it works surprisingly well. It took the copper on my KM from a dingy brown back to a shiny pinkish color.
are you sure about the salt? if the lemon juice makes the salt crystals to blend in with the fluid i get your advice, if not then im affraid the salt might scratch the metal/copper..