No, I get that "printing" meat is a possible function for the vats. I'm just reluctant to say that's the most likely function. That kind of technology doesn't mesh well with the genre, even with handwaved crystal technology. The setting doesn't seem to have enough scientific background to be able to handle artificial meat.
I always imagined it like when they do limb replacement and such in sci-fi space movies. The character that is hurt is usually submerged in a tank, and machines (or lazers or whatever) grow the artificial replacement back. Some examples are Starship Troopers, with Rico. Age of Ultron, with Hawkeye. Matrix, with everyone pre-pill.
A vat doesn't necessarily mean the product is a liquid, or even semi-solid. I imagine the process is like this.
1 ) fill a big ass vat full of enzymes.
2) load in a crystal somewhere (maybe a crystal rod inside the vat, maybe two opposite polarity crystals on either end)
3) energize crystal
4) wait for the enzymes to gather in groups due to the crystal's etheric charge (the way static gathers lint)
5) pull out the completed piece of meat product
6) chop it up
Precedent is there, just not for food.