There is provided a cutter or mold having at least one sidewall defining a cavity, wherein the cavity draft angle varies. In some embodiments, the cutter may also include a base, i.e., the cutter can be a mold. The cutter or mold exhibits better release properties of food products molded or cut therewith than conventional cutters or molds having no cavity draft angle, or a uniform cavity draft angle. Rotary cutting wheels, that in some embodiments may be ultrasonically activated, as well as systems incorporating the cutters or molds are also provided, as are methods of forming food products using the cutters or molds.