Abstract: The invention proposes a method of sealing and/or shaping a food product and apparatus for use in performing the method. Food product is placed on a support surface (10), and a molding surface--comprising a flexible diaphragm (25) is lowered over the food product. Air pressure acting on the diaphragm applies a force to the food product for the purpose of sealing and/or shaping the food product. The arrangement produces a more random appearance to the resulting food product. A plurality of food products are acted on by a respective molding surface which are carried from a common framework. The support surface is preferably a conveyor belt and the framework is mounted for reciprocal movement so that molding pressure can be applied to the food product during an indexing movement of the support surface.