A food processing apparatus (20) including a tank (24) having an inlet end (32) for receiving food product and an outlet end (40) for discharging food product, the tank having an inner wall (44) defining a compartment (52) and including a solid, imperforate wall portion (46), fluid being contained in the compartment, and a rotatable auger (88) mounted in the compartment (52), the auger (88) for advancing food product within the compartment (52) from the inlet end (32) toward the outlet end (40), the auger (88) including flights (104) having a flight wall with a radial edge, a clearance space being defined between the radial edge of the flights and the solid, imperforate wall portion (46) of the inner wall (44). Flow of fluid through the clearance space may be inhibited. One of the inner wall and the flight wall may include a perforated wall portion (48). Flow of fluid between the first auger section and the second auger section may be provided through the perforated wall portion (48).