To those of us invested in the art and comfort of cooking, this sounds highly suspect, but the intention of the 3-D food printer is in fact to end world hunger, or so the developers say. Still, the entire thing sounds creepy. From Quartz:
He [developer Anjan Contractor] sees a day when every kitchen has a 3D printer, and the earth's 12 billion people feed themselves customized, nutritionally-appropriate meals synthesized one layer at a time, from cartridges of powder and oils they buy at the corner grocery store. Contractor's vision would mean the end of food waste, because the powder his system will use is shelf-stable for up to 30 years, so that each cartridge, whether it contains sugars, complex carbohydrates, protein or some other basic building block, would be fully exhausted before being returned to the store.
Try selling that version of the future to your local Slow Food chapter.
The developer plans to begin with pizza printing. Watch a video of chocolate printing below, which looks very much like a lot of effort to replicate a version of a pastry tube.