Aluminum cookware is popular because it heats faster. But studies have been done indicating that some Aluminum gets into the food, and may not be good for your health. Waterless cookware is made of high grade stainless steel
and does not allow metal to get into food. Stainless steel is easy to clean and does not need to be coated with Teflon, which also flakes off and can get into your food.
Once the cookware heats up, it retains its heat. The surface of the stainless steel pan does not radiate much energy, and the construction of the pan keeps the temperature inside the pan consistent for continuous, constant
temperature cooking with the heat turned off.