Abstract: An apparatus for producing plastic containers filled with a liquid, having a forming device which forms plastic preforms into containers, and a filling device which fills the containers with the liquid, wherein the filling device has a transport device which transports the containers during their filling and a plurality of filling devices which fill the containers. The apparatus has a supply line in order to supply the liquid to be filled to the filling devices, wherein the apparatus has at least one heat exchanger device which is configured to also use the liquid to be supplied to the filling devices for cooling components of the forming device and/or a further treatment unit.

Abstract: A method for filling a product. The method including the steps of cooling the product to be filled before or after the introduction of the gas or gas mixture, filling the product to be filled into a filling container, and heating the filled filling container after filling the product to be filled, wherein the cooling and the heating is performed at least partially by means of one heat pump.

Abstract: A method for filling a product. The method including the steps of cooling the product to be filled before or after the introduction of the gas or gas mixture, filling the product to be filled into a filling container, and heating the filled filling container after filling the product to be filled, wherein the cooling and the heating is performed at least partially by means of one heat pump.

Abstract: A hot filling system for a liquid, with heat recovery, and a corresponding method, wherein prior to heating and filling the liquid is first preheated in a heat exchanger. A portion of the heated liquid to be filled is again cooled in a recooler and recirculated. The return line of the recooler is here connected to the supply line of the heat exchanger so as to transfer heat energy from the recooler to the heat exchanger. This reduces energy losses in comparison with known systems.

Abstract: A hot filling system for a liquid, with heat recovery, and a corresponding method, wherein prior to heating and filling the liquid is first preheated in a heat exchanger. A portion of the heated liquid to be filled is again cooled in a recooler and recirculated. The return line of the recooler is here connected to the supply line of the heat exchanger so as to transfer heat energy from the recooler to the heat exchanger. This reduces energy losses in comparison with known systems.