NEW YORK—Additive manufacturing has reached many food markets, so it is no surprise that companies like Hershey, Nestlé, Mars Inc. and Mondelez International have been experimenting with 3D-printed chocolate for the last few years to bring more creativeness and innovation to the industry.

According to 3Dprint.com, most chocolate 3D printers work with CAD files, just like as a normal 3D printer. Instead of a filament, however, the printers use a loaded syringe that keeps the chocolate at temperature as it gets extruded. The extruder head moves around and lays down the melted chocolate with the shape desired in layers. Eventually, the chocolate cools and becomes solid.