A device and method for recovering energy from a hot medium, in particular from hot wort or hot mash for a beer brewery, including a first heat exchanger device for a heat transfer medium that is arranged in particular downstream of a device for heating, boiling or keeping wort or mash warm and is designed such that the heat transfer medium can be heated while cooling preferably wort or mash, wherein at least one heat consumer of the brewery is heated with the heat transfer medium. The heat transfer medium cooled down during heating the heat consumer can be recirculated to the first heat exchanger device in the circuit.