Abstract: The invention relates to a system for the treatment of food by means of high pressure and temperature, comprising a circuit (C) through which a fluid (F) circulates, going through a receptacle (1) provided with a treatment chamber (11) in which the food to be treated is introduced, the circuit (C) comprising pumping means which increase the pressure of the fluid (F) and maintain a constant circulation of fluid (F) in the circuit (C), and heat transfer means which increase the temperature of a first flow (F?) of fluid (F) and reduce the temperature of a second flow (F?) of fluid (F); and the receptacle (1) comprising a peripheral chamber which receives the second flow (F?) of fluid (F), and closure caps comprising a first conduit configured for allowing the passage of the first flow (F?) of fluid (F) to the treatment chamber and a second conduit configured for allowing the passage of the second flow (F?) of fluid (F) to the peripheral chamber.