The insignificant coffee beans have become the products of trade over the century and have become the most popular hot drink in the world. Coffee roasting can be performed in different sizes of roasters, but the goal is the same: it has the same taste as possible from the coffee beans.
 
Be careful when roasted beans; the unspeakable beans taste raw, and the cooked beans taste like a burnt taste. Baked coffee beans require calories and exercise. Beans must be cooked evenly, so move during baking.
 
In the production process of roast beans, the accuracy of temperature is very important. The J -type thermocouple was originally used as a temperature sensor during the roasting process, but it has been replaced by RTDS (resistor temperature detector). The RTD sensor is connected to a controller to control the temperature of the heating element. This process is essential to achieve the best effect.