Commercial kitchens are one of the most challenging designs a plumbing engineer will ever face. The design of the plumbing systems in a commercial kitchen is almost as complex as a hospital, but without the critical life support systems. Commercial kitchens come in many sizes and shapes from small restaurant or deli kitchens to large commercial kitchens preparing thousands of meals at a time. Large kitchens are typically found in casinos, hospitals, prisons, large schools, corporate headquarter dining facilities or other large buildings serving a number of people. These large kitchens typically have a head chef or dietician that prepares a menu and orchestrates the production of many meals.