There are many different ways to cook food, but the basic process involves applying high levels of heat to a raw product in order to change the chemistry of the item. In most cases the heat is transferred through a medium of some kind, like an oil or boiling water, but there is another method of cooking that is common, especially in health restaurants, steam.
Steaming is generally considered one of the healthiest ways to cook food, as it has less fat content then cooking with oil, and many believe less of the nutrients are lost when compared to boiling. A commercial steamer takes this to the next level, and allows for powerful, quick and large quantities of steaming for restaurant use.
Restaurants are always looking for ways to stand out from the crowd. After all, when going out to eat, the typical patron has dozens of choices for where to eat, especially those living in a city. The only way to keep from being lost in the shuffle is to come up with a unique approach to serving meals.