One of the most consumed beverages in the world is produced in Ethiopia and today it is roasted and ground in different ways in countries around the world.
In this article, we will try to explain to you the industrial roasting methods and the different types of roasting. There are two different methods of roasting coffee. The first is to use a drum machine and the second is to use air roasting. The coffee roaster heats the drum, which is then transferred to the coffee by thermal contact and roasts the coffee using a drum roasting method. In air roasting, the heated air constantly mixes and heats the coffee. With this method, the coffee beans are roasted by absorbing heat directly from the air. In air roasting, it is best to heat the coffee beans evenly, and in some cases you can check it in the drum heater, constantly stirring and heating it evenly. Also, roasting with air takes 6-8 minutes, while with a drum roaster, this time is more than 20 minutes.
The more the aroma is exposed to heat in a cafe, the more it loses its flavor and begins to turn into a uniform flavor. In addition, coffee roasters consume less energy when roasting coffee in large quantities and are more developed because they have been developed for a long time. Generally speaking, large companies use drum roasters. The choice of roaster is left to the roaster rather than the coffee lover. Industrial roasting. Our coffee roaster is simple to operate. The power consumption is very low Coffee roaster mathematical, chemical and physical parameters are executed together with careful monitoring and control. The roasting process is done at 10 - 25 rows and 180 - 250°C, depending on the roaster's preference. The coffee roaster has a plc and computer system to manage the heat control.
Points to consider when choosing a coffee roaster will also be mentioned. Moisture During coffee roasting, a large amount of water evaporates from the green coffee beans. Volume Change Oils and sugars in the coffee beans are released under the influence of heat. As a result, the dry core increases in volume and surface area, which increases the interaction between water and coffee during brewing. Density Water in green beans accounts for about 10 - 21% of the weight of the beans, which means that after the roasting process, the weight of the beans decreases by 10 - 21%. Color The green core turns yellow in the first few minutes. Then, under the influence of temperature and time, it turns successively to light brown, brown and black. Oil As coffee is roasted, the oil in it tends to float to the surface. We can say that the seeds where we see oil on the surface are very roasted. There are basically three different degrees of coffee roasting. These are light, medium and dark roasting. We go into a little more detail and you can see the roast varieties and their original names below.
Light Roasting
The roasting temperature is between 175-200°C. The coffee beans are in the process of expanding and the roasting stops immediately before the first crackling sound is heard. If the roasted coffee beans have a fruity aroma and flavor, then you can get all the rich aromas under this roasting. As you continue to roast the coffee and increase the temperature, the rich flavor will become uniform and will be replaced by bitterness.
Medium roasting
This is the most popular roasting method and the temperature is between 200-215°C. The roasting is terminated before the second crackling sound is heard. In this method, the roasted coffee beans have a balanced aroma, acidity and taste. Deep roasting The roasting temperature is 230 - 240°C.
Deep roasting
Ideal for those who want to taste deeper flavors and coffee oils in their mouth. It is also often used in espresso blends, because espresso beans are expected to be oily. In addition to Arabica beans, Robusta beans are also used in espresso blends. This is because the kernels of Robusta beans can be more effectively obtained with cream. In espresso blends, both Arabica and Robusta beans are roasted deeply to make the taste closer. If the two seed types are roasted together for a shorter time, the taste will be very different.
If you want to select a roaster for coffee, please contact with us or click the link ROASTER MACHINE
