Sometimes it isn't possible or perhaps isn't practical to produce freshly cooked food to eat. In such cases, one can resort to packaged food, but packaged food can be bulky and is often considered unpleasant.

Food processors, while not providing a quality of meal as good as freshly cooked, generally do provide better meals than can come out of a can. They are, essentially, 3D printers for food; using “elements” of food such as fat, sugar, protein, and other such components.

These elements come in small packages that are loaded into the machine. TBC