Sterno is a brand name for a type of gel fuel that is commonly used for cooking and heating. It is made from a mixture of ethanol and other ingredients, which allows it to burn cleanly and efficiently. Sterno is often found in portable stoves, chafing dishes, and emergency kits, making it a popular choice for outdoor events and catering. The fuel is typically sold in small cans or containers, which can be easily ignited with a match or lighter. Because it produces minimal smoke and odor, Sterno is favored for indoor use as well, especially in situations where traditional cooking methods are not feasible.