How to roast satisfactory peanuts in peanut roasting machine

Peanut roasting machine is an efficient equipment for roasting nuts, the roasted nuts have pure taste. The equipment has the advantages of energy saving, safety, sanitation, convenience, rapid temperature rise, stable performance, low energy consumption, low operating cost, long service life and simple operation and maintenance. Peanut roasting machine is used to roast peanuts, broad beans, pistachios, almonds, hazelnuts, cashews, cocoa beans and other granular foods.

The peanut roaster machine uses coal or gas or electric heating, and adopts the principles of rotating drum, heat conduction, heat convection and heat radiation.

In the roasting process, how to roast satisfactory peanuts？We should pay attention to the following factors:

First, temperature.  

Temperature is the main factor affecting the roasting speed. With the increase of temperature, the water pressure in peanuts increases, which is beneficial to promote the flow and diffusion of water in peanuts. The moisture solubility of the medium is improved, and the evaporation rate of water on peanut surface is accelerated. The optimum roasting temperature of peanuts is about 200 degrees, but the discoloration and coking of peanuts caused by too high temperature should be prevented.

–> Matters needing attention in using peanut roasting machine

Second, the relative humidityd. 

Relative humidity is an important factor affecting roasting speed. Under the condition of the same temperature and air velocity, the higher the relative humidity, the greater the partial pressure of water vapor in the medium, the less easy it is for the water on the surface of peanuts to evaporate into the medium, and the slower the roasting speed; When the relative humidity is low, the surface moisture evaporates quickly and the roasting speed is fast. However, we should also pay attention to the fact that the lower the relative humidity is, the better. If the humidity is too low, the roasting defects such as cracking and honeycomb will occur.

Third, the air circulation speed.

The air circulation speed is another factor that affects the roasting speed. High-speed airflow can destroy the saturated steam boundary layer on the surface of peanuts, thus improving the heat and mass transfer conditions between the medium and peanuts and accelerating the roasting speed.

To sum up, by setting a proper temperature, ensuring the relative humidity of peanuts and controlling the air circulation speed, satisfactory peanuts can be roasted through the peanut roasting machine. If you want to know more about peanut roasting machine, please contact us.