Description
3‑D food printing with multi‑material extrusion combines meat, gelatin, and vegetable inks to create complex, edible structures.
Technical
The process relies on precise temperature control to maintain shear‑thinning rheology: gelatin inks are dissolved at 40–50 °C and extruded at 4–10 °C, meat inks are homogenized at 60–70 °C and cooled to 4–10 °C, and vegetable inks are heated to 30–40 °C before cooling. Post‑printing cross‑linking with calcium chloride or transglutaminase stabilizes the gelatin network, preventing sagging and ensuring structural fidelity.
Science
Primary Reaction
Cross‑linking of gelatin with calcium chloride (0.1–0.5 % w/v) or enzymatic cross‑linkers (transglutaminase)
Sensory Profile
Aroma ()
savorymeatygelatinousvegetalsweetumami-richearthyherbaceouscaramelized