A chafing dish is a container used for keeping cooked foods warm, usually on a buffet or for catering.
A chafing dish is typically constructed with a dish for the food situated above a heat source of some kind. Chafing dishes can be set up with a water bath, or bain-marie, between the heat source and the food. This allows the food to be heated more gently.
Chafing dish fuel is typically a solid fuel that comes in a small can and is easily ignited with a match or lighter.