Abstract: A set comprising a pan having a flat bottom and an oblique rim divergently extended from the bottom, and a cookstove having a broad brim, wherein when the pan is placed on the cookstove, a clearance of several millimeters is formed between an outside surface of the oblique rim and an inside end of the broad brim, and a combustion gas flows up through this clearance forming an air curtain thereby protecting the people surrounding this set from the direct smell, and maintaining cooked food temporarily placed on the broad brim at a certain temperature.