A deep-frying apparatus comprises an elongate deep-frying pan (1) having a plurality of bottom inlets (2-6) and bottom outlets (7-9) for frying oil, as well as a filter (13), a circulation pump (14) and a heat exchanger (11), which are connected in series from a first collection pipe (12), which is connected to the bottom outlets (7-9), to a second collection pipe (10), which is connnected to the bottom inlets (2-6). At least one pair (18-20) of opposing lateral inlets is arranged in opposing side walls of the deep-frying pan (1) and provided opposite to one another in an area closest to an inlet end (16). At least two of the bottom inlets (2-6) are arranged in this area. Via a third collection pipe (24), the lateral inlets (18-20) are connected to the circulation pump (14), such that oil jets having a velocity of flow much exceeding that of the frying oil flowing in the longitudinal direction of the deep-frying pan are directed towards one another essentially transversely of this longitudinal direction.