When a patient complains of gastrointestinal symptoms such as nausea, vomiting, and upper abdominal pain after ingestion of a substance such as a corrosive agent and certain drugs which can cause mucosal injury to the esophagus and stomach, we always keep in mind gastrointestinal injury and should perform an endoscopic procedure promptly and use the appropriate treatment. It is well known that common corrosive agents which can cause gastrointestinal injury are acidic and alkaline chemicals, and the common causative drug for gastrointestinal injury is NSAID. However, it is not well known that consuming hot food and drinks can cause gastrointestinal injury also. Up to now, there have only been a few case reports of esophageal mucosal injury due to the consumption of hot food and drinks. Gastric mucosal injury after ingesting hot food and drinks is rare and has not been reported often. So here, we report a case of gastric mucosal injury after ingesting a hot liquid diet via gastric feeding tube.