Whole grains expander Fenggu brand expander is good. According to the relevant public information, the price of Fenggu brand expander is very favorable, and the market price is about 2800 yuan each. It is about 500 yuan cheaper than the expander of the same specification, and the product quality is also very good. The machine has been used for three years. Basically, it has not been repaired. The puffing machine belongs to equipment for processing puffed food, such as rice, corn, soybean and wheat in daily life. Its main working principle is that mechanical energy is converted into heat energy, and the food is squeezed by the heat generated when the machine rotates. The most obvious feature of the puffed food is that it becomes larger.