Smokelab Hookah Bowls are made from Russian clay using milk fire technology. The clay is heated to a high temperature, and then the hookah bowl is placed in the milk. This process creates a very smooth bowl that is ideal for hookah smoking. In addition, the milk fire technology helps to preserve the hookah's flavor and aroma. Smokelab Hookahs are known for their excellent craftsmanship, and the company's hookah bowls are no exception. If you're looking for a top-quality hookah bowl, Smokelab is definitely worth considering.