Coffee roaster is one of the key equipment to determine the flavor of coffee, and there are three main types on the market: direct fire, semi-hot air and hot air.
Direct-fire roasters: Utilizing a flame to transfer heat directly to the beans, the boiler surface is usually perforated to allow the fire to burn directly to the bean surface. This type of roasting can make the coffee beans evenly heated by stirring the drum, but the fire is more difficult to control, easy to scorch the surface of the beans, resulting in the situation that the outside is cooked and the inside is not cooked. Direct-fire roasters regulate the heat through the exhaust valve, which is a great test of the roaster's skills.
Semi-hot air roaster: It is the most widely used heat conduction method in the market. The biggest difference between it and the direct-fire type is that the drum does not have the small holes where the flame can't roast directly to the coffee beans. The innermost part of the drum has a deflector hole that directs heat energy into the interior of the drum, which transmits heat evenly through the metal of the drum, resulting in a more even roasting of the beans.
Hot Air Roasters: Utilizing a blower to draw in air, and then allowing the air to pass through a heating coil to raise its temperature, hot air is utilized as a heating source to roast the coffee beans. The hot air not only provides the temperature needed for roasting, but also utilizes the power of the airflow to stir the coffee beans.
With the development of intelligent technology, coffee roasters are gradually integrated with advanced control technology and human-machine interface. Capacitive touch screen, as a modern interaction method, shows many advantages in the application environment of coffee roasters:
1. High sensitivity: Capacitive touch screen detects touch through electrostatic capacitance, which has high sensitivity and can be easily triggered by fingers, gloves, etc., and the response speed is very fast. This means that users can quickly and accurately complete all operations when using the coffee roaster, improving roasting efficiency.
2. High touch accuracy: The capacitive touch panel can accurately detect the user's touch position and support multi-touch, which makes the user more comfortable when setting parameters, selecting roasting modes and other operations. This helps roasters to control the roasting process more accurately and ensure the roasting quality of coffee beans.
3. Intuitive and easy-to-use operation interface: The capacitive touch screen provides an intuitive and easy-to-use operation interface for the coffee roaster. Users can easily set roasting parameters, select roasting modes and other operations by touching icons or buttons on the screen. Touch operation is more intuitive than traditional buttons or knobs, which reduces the user's learning cost and improves the operation efficiency.
4. Good display effect: Capacitive touch screen has a high transmittance rate, which can present a clear and bright display effect when combined with the monitor. This makes the interface of the coffee roaster more beautiful and intuitive, and users can read and set the parameters more easily.
5. Strong durability: Capacitive touch screen has no mechanical parts, so it can withstand more use and wear and tear. Meanwhile, its surface is usually made of high-strength materials, which can effectively prevent scratches and chips. This ensures the stability and reliability of the coffee roaster during long-term use.
6. Easy to clean and maintain: The surface of capacitive touch screen is smooth, not easy to get dust and dirt, and easy to clean. This helps to keep the coffee roaster tidy and hygienic, ensuring the cleanliness of the roasting environment.
7. Intelligent roasting control: Through the capacitive touch screen, users can control the parameters of the roasting process, such as roasting temperature, roasting time, etc. more precisely. This helps the user to customize a personalized roasting plan based on the type of coffee beans and roasting needs.
Some high-end coffee roasters are also equipped with intelligent control systems, which can automatically adjust the roasting parameters according to the user's settings and the characteristics of the coffee beans, realizing intelligent roasting control.
At present, some high-end coffee roasters have begun to use capacitive touch screen as the human-machine interface. These devices usually have multiple roasting modes, precise roasting parameter settings and intelligent control systems. Users can easily complete various operations by touching the icons or buttons on the screen, and understand various information in the roasting process in real time. At the same time, these devices also support remote control and data upload and other functions, which is convenient for users to monitor and manage the roasting process remotely.