Refrigerator or freezer device at a refrigerator or freezer (1) having, a house (3), fan devices (4), refrigeration or freezing aggregates (5), a perforated trough bottom assembly (2), an inlet (6) and an outlet (7) wherein that said perforated trough bottom assembly (2) comprises a first perforated trough bottom part (2b) and a second perforated trough bottom part (2a), in that said first part as well as said second part are subjected to the action of the fan devices (4) as well as the refrigeration or freezing aggregates (5) and in that said first part of said perforated trough bottom assembly (2b) next to the inlet is heated so that the food materials are prevented from being stuck to said perforated trough bottom assembly (2).
