How to dry hops,coffee beans in the drying oven？
There are two main ways of drying coffee. The first method is to place the coffee beans on a drying bed and let them dry naturally. The second is by using a dedicated coffee dryer.
Mechanical dryers have three main advantages over drying coffee in the sun: it eliminates uncontrolled environmental variables that can affect coffee quality; it improves accuracy; and it minimizes delays.
Additionally, because mechanical dryers protect coffee from all types of weather, they also help eliminate producers’ concerns about drying their coffee in adverse or unpredictable conditions.
One of the most important features of many modern rotary coffee dryers is the drying control system. These systems provide producers the ability to manage temperature through three independent variables: heat source, air and coffee.
By doing so, the drying control system provides the producer with more control throughout the drying process. Some systems even allow producers to create "drying curves" that interrupt the dryer before it reaches the maximum specified temperature.
By mechanical drying, parameters such as time and temperature can be controlled. This extra control means higher quality consistency, radically reducing risk during drying.
By reducing drying time and using less labor to turn the coffee, producers will have more labor time to harvest and process.
While drying coffee on a drying bed is still a suitable option for many coffee producers, mechanical dryers have many advantages that cannot be ignored. Technologies such as drying control systems provide producers with greater precision throughout the drying process.
Hops Dryer Oven
The steps of drying hops are as follows: first, raise the temperature to about 45 degrees Celsius, bake for 2 hours; then raise the temperature to 50 degrees Celsius, turn on the dehumidification function at the same time, adjust the humidity to 30% RH, bake for 5-6 hours, Then raise the temperature to 55°C, adjust the humidity to 20%RH, continue to bake for 1.5 hours, then turn off the heating device and wait for the temperature of the drying room to naturally decrease and cool down. At this time, the hops have been dried, and the dried The water content of hops is less than 8%, which is very effective for beer production and processing.
Drying ovens are also called industrial furnaces. Drying ovens can be divided into programmable furnaces, precision industrial furnaces, nitrogen industrial furnaces, vacuum furnaces, explosion-proof drying ovens, industrial furnaces, electric blast furnaces, and hot air circulation industrial furnaces according to their performance. Widely used in drying and heating devices in all walks of life.
The drying oven can be divided into two types: horizontal and vertical industrial furnaces. According to the rated temperature of industrial furnace, it can be roughly divided into: low temperature industrial furnace: 100 ℃, generally used for aging of electrical products, slow drying speed of ordinary materials, food raw materials, plastic products, such as drying.
Drying boxes generally have heating pipes, and drying boxes with circulating fans can be called drying boxes, because no matter what the structure of the drying box is, whether the wind direction is horizontal or vertical, in the final analysis, hot air circulates inside, so it can be generally called a drying box, such as Electric heating blast drying oven, high temperature sterilization drying oven with side-to-side door, etc.
However, most of the drying ovens in the general industry refer to the drying ovens shown in the above figure. Other drying ovens are evolved from the drying ovens in the above figure. For example, with the requirement of high temperature sterilization, the fan is changed to air-cooled centrifugal The circulating fan, the front and rear doors are opened, and the air duct has also been changed, and it becomes a high-temperature sterilization drying oven with a double door. The hot air circulation is divided into five standard models. They are single-door bicycles, two-door two-cars, two-door four-cars, three-door six-cars, and four-door eight-cars.
The air circulation system of the drying box adopts the fan circulation air supply method, and the air circulation is uniform and efficient. The air source is driven by a circulating air supply motor (using a non-contact switch) to drive the wind wheel through the heater, and the hot air is sent out, and then goes through the air duct to the inner room of the drying box, and then the used air is sucked into the air duct to become the air source for recirculation. , heating use. Indoor temperature uniformity. When the temperature value oscillates due to the door opening and closing action, the air supply circulation system quickly returns to the operating state until it reaches the set temperature value.
First, the low-end equipment of drying oven manufacturers is the high-temperature drying oven, which operates at extremely high temperatures. It not only heats the product, but also removes bad substances from the product. It can also be used in some common devices and accessories in life, it can effectively play its own preheating, monotony and other functions. And it is not difficult to operate by itself, very safe and simple.
Second, it is actually a dust-free drying box. Like the high-temperature drying box, it also has the functions of drying, heating, and monotony. However, the difference is that most of the time, drying oven manufacturers are used in semiconductor production, as well as liquid crystal display and laboratory research, mainly in the fields of some more sophisticated industries.
Third, there is also a hot air circulation drying oven, which has a closed circulation system, which allows better transmission of thermal efficiency inside, and then better heating. Front and rear doors are more conducive to high temperature sterilization. It is mostly used in work related to our life, such as medicine, chemical industry, food and agricultural and sideline products.
This is how to dry hops, coffee beans in the oven. If you have needs, you can contact Zhengzhou Keda Machinery Equipment Co., Ltd. For decades, Zhengzhou Keda Machinery Equipment Co., Ltd. has been committed to the production and manufacture of laboratory instruments and pipe fittings.
If you want to know about our products, or want to buy our instruments, please feel free to contact us, we will be happy to help you.
