The term 'Catering Supply' is often used to refer to a business that provides food and other supplies for events such as weddings, parties, and corporate functions. The term 'Sterno' is a brand of fuel used in catering supplies to keep food warm. Sterno is a gel-like substance that is placed in a can and lit with a match or lighter. It is a safe and efficient way to keep food warm for long periods of time.