Generally, any non-carbonated beverage may be added to the water in a hookah base, or replace the water completely. We don’t recommend adding milk to the base, as this can cause the water to bubble into the hose. For more detailed information on water or other liquids in the base, check out the last few paragraphs of our blog post on the pleasures of smoking Hookah.
Ice is also a great addition to any hookah base. It cools the smoke which allows for a thicker smoke as well as cooling the smoke to a more comfortable temperature as you smoke it.
Whatever you put into the base, if it has a flavor or a smell it will alter the taste of your hookah smoke. Most of your taste comes from your sense of smell and that is how the hookah works, so generally a liquid that has more of a smell will be “tasted” more.