Abstract: A food and drink warming container comprises an openable container body for receiving a drink or food containing at least a liquid substance, a metallic can housed within the body and filled with quick lime and water which is sealed in a bag, and a cover member attached to the metallic can and having a communication port for communicating the interior of the metallic can to the exterior of the body. The water is brought into contact with the quick lime when the body is broken through the communication port, thereby allowing a hydration reaction of the quick lime to take place for generating heat and thereby warming the drink or food to a predetermined temperature.