The invention relates to a
microwave and
electric heating combination-type
coffee roasting device and belongs to the field of
processing of agricultural products. The device comprises a
microwave device, a monitoring device, a transmission device, an
electric heating device and a control device; the
microwave device is used for generating microwaves to conduct microwave heating on materials; the monitoring device comprises a temperature and
humidity sensor, an
infrared temperature measurement sensor and a temperature sensor; the temperature and
humidity sensor is used for monitoring the temperature and
humidity of discharged air, the
infrared temperature measurement sensor is used for monitoring the temperature of the surfaces of the materials, and the temperature sensor is used for monitoring the temperature of an
electric heating tube; the control device is used for controlling the microwave device, the transmission device and the electric heating device according to temperature andhumidity information of the discharged air, temperature information of the surfaces of the materials and the temperature of the electric heating tube which are monitored by the monitoring device. According to the device, a microwave heating mode is used for
roasting green coffee beans, the preheating process is not needed during microwave heating, the quality of roasted coffee is improved, the
roasting time is shortened, the
roasting efficiency is improved, the production cost is lowered, and the device saves energy and is
environmentally friendly.