A heating and cooking apparatus inside the cooking chamber of a 3D food printer includes a laser cooking apparatus controlled by a processor implementing particular computer program instructions specific to the operation of the heating and cooking apparatus. The laser cooking apparatus includes at least one laser system with at least one laser beam able to heat the food product to its cooking temperature. Each laser system provides two or more laser beams, each of which can be deflected and focused into the food product with a beam spot of adjustable diameter. The heating and cooking apparatus also can include an electromagnetic radiation heating apparatus that is controlled by the processor and emits electromagnetic radiation to warm the food product inside the cooking chamber to a temperature below its cooking temperature.一3D食物列印機的烹飪腔內之一加熱及烹煮設備包含一雷射烹煮設備,該雷射烹煮設備被執行專用於該加熱及烹煮設備的操作的特定電腦程式指令之一處理器控制。該雷射烹煮設備包含能夠將食品加熱到其烹煮溫度的具有至少一雷射光束之至少一雷射系統。每一雷射系統提供兩個或更多個雷射光束,每一雷射光束可被偏轉,且被利用具有可調整直徑的一束斑而聚焦到該食品。該加熱及烹煮設備也可包含一電磁輻射加熱設備,該電磁輻射加熱設備被該處理器控制,且發射電磁輻射,以將該烹飪腔內之該食品加溫到低於其烹煮溫度的一溫度。