A device for brewing beer, particularly a wort pan (1), with a container body (2) to receive a wort reservoir (3) is described. The device contains an internal boiler (4) arranged in the container body (2), which is provided with a heat exchanger (5) and a guiding screen (8). Furthermore a wort forced flow (10) provided with a pump is also provided, which runs through the boiler (4). In order to increase the efficiency of the device, the wort forced flow (10) has a thin-layer distributor (17) for the wort, which contains a pipe subsection (11b) connected with the pump, which subsection leads above the guiding screen (8) via an outlet opening (13) with reduced outlet cross-section into the container body (2). Furthermore, above the outlet opening (13), a flow-guiding baffle surface (15) is provided, at which the flow arrives from below, to deflect the liquid towards the wort reservoir (3).