Once the ingredients for a specific recipe are mixed they enter the can, pouch or tray. For some forms of wet food, a mix of water, thickening agents and flavours may be added to form a gravy or jelly during the cooking process. | Once the ingredients for a specific recipe are mixed they enter the can, pouch or tray. For some forms of wet food, a mix of water, thickening agents and flavours may be added to form a gravy or jelly during the cooking process. |