Apparatus and method for the recovery of energy

An apparatus for the recovery of energy from one of a liquid hot wort or a hot mash for a beer brewery, comprising:

• a first heat exchanger device for a heat transfer medium, which is adapted such that the heat transfer medium is heated by said first heat exchanger device while the liquid hot wort or hot mash is cooled down by said first heat exchanger device, the heat transfer medium is heated up to a temperature level T1 in the first heat exchanger device,
• a second heat exchanger device which is adapted such that water is heated up to a temperature of T2<T1, while the liquid hot wort or hot mash from the first heat exchanger device is cooled down by said second heat exchanger device,
• a heat transfer medium circuit comprising the first heat exchanger device and at least one heat consumer,
• a brewing water circuit comprising the second heat exchanger device, wherein
• at least one heat consumer of the brewery is heatable with the heat transfer medium that was heated by said first heat exchanger device,
• the heat transfer medium cooled down during the heating of the heat consumer is supplied in circuit back to the first heat exchanger device, and
• the heat transfer medium circuit and the brewing water circuit are separated, wherein the heat consumer is at least one of a heating device of a mashing device or a wort heater.