A rounding device and method of rounding that provides improved rounding of semi solid material portions by introducing changes or variations in the contours or profiles of rounding bars to produce one or more changes in the axis of rotation of the semi solid material portion along the working length of the one or more contoured rounding bars and round the surfaces of the semi solid material portion with greater uniformity and consistency. By changing the axis of rotation of the semi solid material portion in the working length of the variable contour rounding bar one can improve the rounding and avoid blemishes and deformities that occur to the surface of the semi solid material portion in existing devices.