To provide a beverage/food heating apparatus capable of securing the efficient heating and improving the heating work etc. by correctly grasping the temperature of a beverage/food while preventing overflow and backward flow of the beverage/food at the time of heating.

In the beverage/food heating apparatus, the beverage/food is heated by jetting steam from a nozzle into a cup filled with the beverage/food. The beverage/food heating device comprises a lid body for covering the cup at the time of heating, having a tip part forming the tip of the nozzle and a pressure adjusting means for adjusting the internal pressure in the cup, and a control means for controlling the jetting of steam from the nozzle.