Abstract: The invention comprises an apparatus for automatically removing fat from a meat carcass. A sensing station includes a row of needle probes which can be inserted into the carcass and which produce an electric signal at a fat/lean interface. The position of this interface relative to a support is recorded for each probe in a memory unit, and the carcass is then passed to a cutting section where it is drawn over a knife blade. The height of the knife blade is adjustable by a servo-motor controlled from the memory unit, and as the carcass is pulled over the knife, information from the memory unit is progressively released to adjust the knife so that the cut through the carcass follows the previously-sensed fat line.