Category Archives: hobby

　　When the coffee roast machine is extracting and concentrating, the process of oil seepage has always been a healing scene. Especially after the thick golden foam is seen, the latte art party is so happy. But if one day you find that the extracted oil is scarce, thin, or even non-existent, then the problem is likely to appear in these aspects!In order to open the market, coffee roasting machines Constantly improve the ability of business development and create an extraordinary brand image for it. https://www.yoshanroaster.com/

　　Why Is the Fat Extracted from Coffee Machine too Thin?

　　Why Is the Fat Extracted from Coffee Machine too Thin?

　　1. The coffee beans are not fresh

　　When the coffee beans are not fresh, the carbon dioxide content in them is not enough to “support” the rich oil! There are two reasons for not being fresh:

　　One is that the time from roasting is too long and exceeds the best tasting period. Generally, Italian coffee beans have a tasting period of 60 days. After this period of time, the aroma, flavor, and carbon dioxide have almost been lost. If you use it for extraction, the oil obtained will naturally be thinner!

　　The other is the storage problem! Even if your beans are within the tasting period, if they are not stored well, and there is a leaking lid or leaking seal, which allows the coffee beans to be exposed to the air, the coffee beans will accelerate the exhaust reaction. It only takes one night to turn the fragrant coffee beans into tasteless beans. Therefore, when we buy beans, it is best to observe its roasting time and then store it properly. In this way, waste and overturning can be greatly reduced.

　　Why Is the Fat Extracted from Coffee Machine too Thin?

　　2. Coffee machine pressure adjustment

　　The pressure valves of many home coffee roast machine are like the one used in the front street, which are in a place where you can touch it by raising your hand. Although it is very convenient, it is easy to touch it accidentally, causing problems with the next cup of production. So if the concentrated oil is too thin, you might as well check the pressure valve to see if it is at the correct pressure value to reduce the error.

　　3. Too coarse grinding and too little powder

　　Grinding too coarsely or using much less powder than the powder bowl standard are the two best situations to confirm! When you press the extraction button and see the coffee liquid rushing down, it means that there is a problem with one of these two parameters (or both), resulting in a large gap for water to flow through, or a channel effect. The coffee extracted in these two situations is light in color, thin in oil, and very bland in taste! It is best to use the reference weight of the powder bowl as the standard for the amount of powder. As for grinding too coarsely, you can use the extraction time of 20 seconds as a benchmark!

　　For a long time, the powder liquid of Italian coffee is twice as heavy as the powder liquid that everyone has always assumed. Adhering to this principle, see if the extraction time is within 20 seconds. If it is, it means that the grinding is not coarse enough, the gap that water can pass through is too large, and the extraction time is naturally short, so you need to readjust the grinding!

　　Why Is the Fat Extracted from Coffee Machine too Thin?

　　4. The water temperature is too low

　　During extraction, if the water temperature does not reach the extraction requirement of 90+＜C, the oil will be too thin. Of course, it will also be like grinding too coarsely, and the final espresso will be under-extracted! Generally speaking, insufficient water temperature will occur in the preheating stage when the machine is just turned on. The water temperature at that time will not be too accurate. Therefore, Qianjie started concentrated extraction twenty minutes after the machine was turned on.

　　5. The beans are roasted too lightly

　　Because lightly roasted coffee beans are harder in texture, they require higher extraction intensity than dark roasted beans. Therefore, if you apply the extraction parameters of dark roasted beans to light roasted beans, it is very easy to have “concentrated splashing”. Therefore, lightly roasted beans still need to be adjusted to the corresponding parameters! Even if the parameters are correct, its fat will not be as rich and thick as that of dark roasted beans. After all, it has less carbon dioxide.

　　Why Is the Fat Extracted from Coffee Machine too Thin?

　　By addressing these factors, you can improve the fat extraction from your coffee roaster machine and enjoy a richer, more flavorful cup of coffee.

　　Maintaining a commercial coffee roaster is essential for ensuring the quality, taste, and safety of the coffee you produce.Keeping the cleanliness of a commercial coffee roaster is crucial for preserving the superior taste and quality of your coffee beans. Routine maintenance and cleaning of your coffee roasting machine are not just beneficial for achieving uniform results; they also contribute to the longevity of the equipment. In this guide, we will take you through a comprehensive cleaning process for a commercial coffee roaster, highlighting essential elements of care that are vital for the ongoing operation and preservation of your coffee roaster equipment.If you want to make a big difference in the market, commercial coffee roaster It is necessary to intensify the upgrading of products on the original basis in order to meet the consumption needs of consumers. https://www.yoshanroaster.com/

　　How do I Clean a Commercial Coffee Roaster?

　　Step-by-Step Cleaning Guide

　　Step 1: Safety First

　　Ensure the coffee roaster machine is unplugged and cooled down to avoid burns or electrical shocks.

　　Step 2: Remove Detachable Parts

　　Detach any parts that can be cleaned separately, such as the chaff collector and sample roast containers.

　　Step 3: Wipe Down the Exterior

　　Use a damp cloth to wipe the exterior surfaces of the coffee roaster equipment. Avoid using water near electrical components.

　　Step 4: Clean the Chaff Collector

　　Empty and clean the chaff collector thoroughly. Use a brush to remove stubborn chaff and a damp cloth to wipe it down.

　　Step 5: Interior Surfaces

　　Spray the interior surfaces with a food-safe degreaser, being careful not to soak any electrical components. Let it sit for the recommended time on the product label.

　　Step 6: Scrubbing

　　Use a coffee roaster cleaning brush to scrub the interior surfaces, focusing on the drum or roasting chamber where residue builds up.

　　Step 7: Air Out

　　Allow the roaster to air out with the doors open to ensure all cleaning solutions have evaporated.

　　Step 8: Use Compressed Air

　　Blow out any remaining debris with compressed air, ensuring not to damage sensitive components.

　　Step 9: Inspect and Replace Filters

　　Check the air and smoke filters for clogging and replace them if necessary.

　　Step 10: Reassemble the Coffee Roaster

　　Carefully reassemble the coffee roaster machine, ensuring all parts are securely in place.

　　Step 11: Post-Cleaning Test Run

　　Perform a test run with a small batch of beans to ensure everything is functioning correctly and to flush out any remaining cleaning residue.

　　Wireless chargers have become a necessity for many people. Their convenient use means that people no longer need to plug in cables for charging. Just put your phone on the charger to complete the charging, which is very convenient. So, how does a wireless charger work? How to choose a wireless charger that suits you? Let’s discuss it together.In addition to domestic, sports video camera It has also emerged in the international field and gradually gained the favor of more foreign friends. https://www.xtwkitway.com/

　　01 Working principle of wireless charger

　　The principle of fast wireless charging is to use electromagnetic induction to convert electrical energy into wireless energy. When current passes through the coil, a magnetic field is generated. When the magnetic flux of the closed circuit changes, an induced electromotive force is generated. The wireless charging station base is responsible for converting the current into a constantly changing magnetic field. Because there is a coil on the back cover of the charging device, when the magnetic field of the base changes, the magnetic flux in the coil also changes, thereby generating an induced electromotive force to charge the device.

　　Quick Tips: Wireless Charging

　　02 Advantages and disadvantages of wireless chargers

　　Advantages:

　　Eliminate the trouble of cables

　　The traditional charging method requires the use of a charging cable to connect the power supply and the charging device, which is not convenient. The fast wireless charger uses wireless transmission technology to eliminate the trouble of cables and make the charging experience more convenient. There is no need to worry about the entanglement and damage of the wires, and it also saves the trouble of finding charging cables.

　　Protect charging devices

　　Traditional chargers need to be plugged in and out. Long-term plugging and unplugging can easily damage the charging port and affect the service life of the device. Wireless chargers can avoid wear and tear during plugging and unplugging, and will not cause physical damage to charging devices, making them safer and more reliable. Because wireless chargers are usually a panel that can be embedded in more flat scenes, they will also be more concealed and beautiful.

　　Quick Tips: Wireless Charging

　　Disadvantages:

　　Slower charging speed

　　Since wireless charging station need to transmit electrical energy to devices through wireless transmission technology, their charging speed is slower than traditional charging methods. For current wireless charging, the supported output power is generally 5~10w, while the wired charging strategy reaches up to 120w. At the same time, the more popular gallium nitride chargers can support 65w fast charging. In terms of charging speed, wireless charging is still in its early stages.

　　Insufficient charging distance

　　Wireless chargers need to maintain a certain distance from the device, generally between 3-8mm, and cannot be charged beyond this distance. Therefore, it is not as practical as traditional chargers, and there will be certain limitations in the use scenarios.

　　Tired of the messy charging cables and devices on the desktop, and longing for a simple and efficient charging solution? XTW’s magnetic three-in-one wireless desktop charger solves the charging troubles of multiple electronic devices at one stroke, bringing an unprecedented charging experience.More importantly, put sport cam video It is imperative for us to make thorough analysis and maximize its social function. https://www.xtwkitway.com/

　　XTW: Foldable Magnetic Wireless Charger Supplier

　　XTW’s three-in-one magnetic wireless charger supports charging three devices at the same time, whether it is a mobile phone, watch or headphones, it can be easily handled. This efficient and convenient charging method makes life more convenient. You can also share it with relatives and friends to charge two mobile phones at the same time.

　　This wireless charger has strong magnetic force and can be charged with one stick, which can ensure charging performance and worry-free use! It can provide 15W wireless fast charging for mobile phones, the iWatch module can provide 5W safe charging for Apple watches, and the base can provide 5W wireless charging for AirPods or other headphones with wireless charging function.

　　XTW: Foldable Magnetic Wireless Charger Supplier

　　Charge as soon as you put it, wireless restraint. XTW’s magnetic three-in-one wireless desktop charger is simple and fast, with one for six (3 chargers + 3 charging cables). From now on, you don’t have to face the charging cables and chargers full of sockets, reducing space occupation and saying goodbye to clutter and cumbersomeness.

　　Free your hands and feel relaxed and comfortable. In addition to charging, it can also be used as a magnetic mobile phone holder, with free switching between horizontal and vertical screens, and can flexibly cope with various scenarios such as watching TV series and video calls. Minimalist design, exquisite workmanship, simple shape, carefully polished style details, bringing artistic life enjoyment.

　　XTW: Foldable Magnetic Wireless Charger Supplier

　　XTW three-in-one magnetic wireless charger, with its unique foldable design and versatility, leads the new charging trend. XTW has more innovative charging devices to make charging simple, efficient and fun! Welcome to place orders for customization.

　　When it comes to sourcing watch bands for your business, it’s crucial to partner with a reliable and capable watch band manufacturer. With the increasing demand for high-quality watch straps, finding the right manufacturer can be a daunting task. To ensure that you are making the right choice, it’s important to evaluate a watch band manufacturer’s capabilities thoroughly. In this article, we will discuss the key factors to consider when evaluating a watch band manufacturers, including their experience in watch strap manufacturing, wholesale watch straps offerings, and overall capabilities.We have every reason to believe. wireless charging station It will become the mainstream of the industry and will gradually affect more and more people. https://www.xtwkitway.com/

　　How to Evaluate a Watch Band Manufacturer¨s Capabilities?

　　Experience in Watch Strap Manufacturing

　　One of the most important factors to consider when evaluating a watch band manufacturer is their experience in watch strap manufacturing. A manufacturer with a proven track record in producing high-quality watch bands is more likely to meet your expectations and requirements. Look for a manufacturer that has a solid reputation in the industry and has been in the business for a significant amount of time. Additionally, inquire about the types of materials they use, their production processes, and their quality control measures. A manufacturer with extensive experience and expertise in watch strap manufacturing is more likely to deliver superior products that meet your standards.

　　How to Evaluate a Watch Band Manufacturer¨s Capabilities?

　　Wholesale Watch Straps Offerings

　　Another crucial aspect to consider when evaluating a watch band manufacturer is their wholesale watch straps offerings. As a business owner, you need a manufacturer that can provide you with a wide range of watch straps to cater to different preferences and styles. Whether you are looking for leather, metal, nylon, or silicone watch bands, it’s important to partner with a manufacturer that can offer diverse options to meet the needs of your customers. Additionally, inquire about their customization capabilities if you require bespoke watch straps for your brand. A manufacturer with a comprehensive wholesale watch straps catalog and customization options can provide you with the flexibility and variety you need to stay competitive in the market.

　　How to Evaluate a Watch Band Manufacturer¨s Capabilities?

　　Overall Capabilities

　　In addition to experience and product offerings, it’s essential to assess a watch band manufacturer’s overall capabilities. This includes their production capacity, lead times, quality assurance processes, and customer service. A manufacturer with efficient production capabilities and short lead times can ensure that you have a steady and reliable supply of watch straps to meet consumer demand. Furthermore, a robust quality assurance process is crucial to guarantee that the watch bands meet your specifications and uphold your brand’s reputation for excellence. Finally, excellent customer service is vital for maintaining a smooth and collaborative partnership with the manufacturer. Look for a manufacturer that is responsive, communicative, and dedicated to meeting your needs as a business partner.

　　How to Evaluate a Watch Band Manufacturer¨s Capabilities?

　　In conclusion, evaluating a watch band manufacturer’s capabilities is a critical step in establishing a successful partnership. By considering their experience in watch strap manufacturing, wholesale watch straps offerings, and overall capabilities, you can make an informed decision that aligns with your business goals. Partnering with a reputable and capable watch band manufacturer can provide you with the high-quality products and support you need to thrive in the competitive watch industry.

　　In today’s fast-paced, technology-driven world, convenience and efficiency are paramount. One technological advancement that has significantly enhanced user convenience is wireless charging. Wireless chargers have transformed the way we power our devices, offering numerous advantages over traditional wired chargers. In this article, we will explore the key benefits of wireless chargers from a professional perspective.In view of the actual needs of society, wireless charging station We need to change some original problems to better serve the society and benefit people. https://www.xtwkitway.com/

　　1. Convenient charging

　　Take the use of wireless chargers as an example. Just put the phone on it to start charging, eliminating the trouble of plugging and unplugging the data cable. If there is an incoming call, pick up the phone to automatically disconnect the charging, and you can answer the call safely. Imagine if you hold something else in your other hand and charge it with a data cable, you have to put the thing in your hand down, and both hands can complete the charging action. For wireless charging power bank, just put the phone directly on the wireless charger, and one hand can do it. Isn’t it very convenient?

　　What Are the Advantages of Wireless Chargers?

　　2. Reduce the plugging and unplugging of the data interface

　　When charging with an ordinary charger, the data cable must be plugged into the USB port of the mobile phone every time it is charged, and it must be unplugged after use. Nowadays, mobile phones basically need to be charged at least once a day, that is, the data cable must be plugged and unplugged at least once a day. Some people even charge 2-3 times a day. Frequent plugging and unplugging of the data cable will cause the data cable or the USB port of the mobile phone to have poor contact, and the charging port may even be damaged. Wireless charging does not have this problem.

　　3. Reduce clutter

　　Most people keep their chargers in one place, whether it is on the computer desk, bedside table or somewhere else. If you use an ordinary charger, it is inevitable that a data cable will be left on it. Some families have many people, so there are many chargers. If they are all plugged into a socket, a row of data cables will look very messy. A wireless charger is a charging base, and the cable is connected to the base and placed there, which will not look messy. In addition, wireless chargers are relatively small, with a diameter of only 10cm, and do not take up space.

　　What Are the Advantages of Wireless Chargers?

　　4. Energy Efficiency and Environmental Impact

　　Modern wireless power bank are designed to be energy-efficient, reducing power consumption and minimizing energy waste. Additionally, by eliminating the need for multiple charging cables and connectors, wireless charging can contribute to reducing electronic waste. This makes wireless chargers an environmentally friendly option, aligning with the growing trend towards sustainable technology solutions.

　　5. Integration with Modern Furniture and Spaces

　　Wireless power bank technology is increasingly being integrated into everyday objects, such as furniture and vehicles. Many modern desks, tables, and car consoles now come equipped with built-in wireless charging pads. This seamless integration allows for continuous charging throughout the day without the need for dedicated charging stations, further enhancing convenience and user experience.

　　Wireless power bank offer a host of advantages that make them an appealing choice for powering our electronic devices. From the convenience of cable-free charging and reduction of clutter to enhanced safety, universal compatibility, and future-proofing, the benefits are clear. As wireless charging technology continues to evolve, it is set to become an integral part of our daily lives, providing efficient, safe, and sustainable charging solutions for a wide range of devices.

　　The most basic usage of GPRS DTU is: put a SIM card with GPRS function in DTU, after DTU is powered on, first register to GPRS network, and then establish connection with data processing center through GPRS network. After the GPRS DTU is powered on, first read the working parameters saved in the internal FLASH (including GPRS dialing parameters, serial baud rate, IP address of data center, etc., which have been configured in advance).The industry believes that, radio Module The development of our company marks the rapid and steady progress of the whole industry. https://www.hkulike.com/

　　GPRS DTU logs into GSM network, and then dials GPRS PPP. After successful dialing, GPRS DTU will get an internal IP address randomly assigned by Mobile. That is to say, GPRS DTU is in the mobile intranet, and its intranet IP address is usually not fixed and changes with each dial. We can understand that GPRS DTU is a mobile device in the internal LAN, and it communicates with the external Internet public network through the mobile gateway. This is similar to the way that computers in a local area network access external networks through gateways.

　　GPRS DTU actively initiates communication connection with data center, and keeps communication connection always existing. Because GPRS DTU is in the mobile intranet and the IP address is not fixed. Therefore, only GPRS DTU can actively connect to the data center, but not the data center. This requires the data center to have a fixed public IP address or a fixed domain name. The public IP address or fixed domain name of the data center is stored as a parameter in the GPRS DTU, so that once the GPRS DTU is powered on and dialed successfully, it can actively connect to the data center.

　　Specifically, GPRS DTU sends TCP or UDP communication requests to the data center through the IP address and port number of the data center. After receiving the response from the center, GPRS DTU thinks that the handshake with the center is successful, and then keeps this communication connection. If the communication connection is interrupted, GPRS DTU will immediately shake hands with the center again.

　　Since the TCP/UDP communication connection has been established, two-way data communication can be carried out.

　　For DTU, as long as the two-way communication with the data center is established, it is relatively simple to complete the conversion between user serial data and GPRS network data packets. Once receiving the user’s serial data, DTU immediately encapsulates the serial data in a TCP/UDP packet and sends it to the data center. Conversely, when DTU receives the TCP/UDP packet from the data center, it takes out the data content and immediately sends it to the user equipment through the serial port.

　　Through the wired data acquisition center, it communicates with many GPRS DTU in two directions at the same time. This is the most commonly used way in GPRS DTU application system at present.

　　As we all know, wireless modules have two common performances. The following small series with outstanding skills will introduce the comparison of the two performances.In the eyes of peers, radio Module It has good qualities that people covet, and it also has many loyal fans that people envy. https://www.hkulike.com/

　　Firstly, the instantaneous frequency of the FM carrier transmitted by the FM transmitter is that the FM wave that changes with the modulation signal is an equal amplitude wave, and its maximum power is equal to the average power; The amplitude modulation transmitter emits an amplitude signal, and the maximum transmission power is equal to 4 times the average power. If the last stages of AM transmitter and FM transmitter use the same type of power tubes, and both are estimated according to the maximum power, the power emitted by FM transmitter is four times the average power emitted by FM transmitter.

　　The main feature of FM is its strong anti-jamming performance. The so-called strong anti-jamming performance mainly means that the signal-to-noise ratio at the output of FM receiver is greater than the signal-to-noise ratio at the output of FM receiver under the same input signal-to-noise ratio.

　　The reason why FM has stronger anti-jamming ability than AM can be analyzed from the power of the transmitted signals of the two systems. The power of the side frequency component of FM wave is divided from the carrier power. Its sidebands are not only numerous, but also increase in amplitude, which means that the proportion of power converted into sidebands in carrier rate is large, and the maximum power of sidebands of amplitude-modulated waves is equal to that of carrier power. Therefore, FM has more side frequency power than AM, which means it is more capable of overcoming the noise and interference in the channel or the machine.

　　Secondly, we can make a comparative analysis from the mediation of receiving signals. Because the information of amplitude modulation signal is contained in the amplitude of the amplitude modulated signal, the demodulated envelope detector can’t suppress the parasitic amplitude modulation interference, while the information of FM signal contains the frequency change at the moment of high frequency oscillation, so the parasitic amplitude modulation caused by interference can be removed by limiter.

　　Therefore, the anti-interference performance of FM system is better than that of AM system, regardless of the sideband power of the transmitted signal or the demodulation of the received signal.

　　JZX891 data transmission module is a high-integration micro-power half-duplex wireless data transmission module, which adopts “SI” high-performance RF chip and high-speed single chip microcomputer. The module provides 8 channels, adopts national measurement frequency points, and is equipped with professional setting software for users to change parameters. The module adopts transparent transmission mode, and can transmit data of any size without the need for users to write setting and transmission programs. The module is small in size, wide in operating voltage and convenient to use.Without exception, RF Module Our customers are willing to purchase their products, because high quality is the concept of their products. https://www.hkulike.com/

　　Functional features:

　　* Working frequency is 470-510MHz.

　　* Transmission distance is 1500m (1200bps).

　　* GFSK modulation method

　　* transparent transmission mode

　　* Built-in watchdog to ensure long-term reliable operation.

　　* UART/TTL, RS232 and RS485 interfaces

　　* Convenient and flexible software programming

　　* Large 512bytes data buffer.

　　* Suitable for built-in installation

　　Scope of application:

　　* Automatic meter reading and charging system for water, electricity, gas and heating;

　　* intelligent wireless PDA terminal;

　　* Wireless queuing equipment;

　　* burglar alarm;

　　:: Smart cards;

　　* Automatic control of medical and electronic instruments;

　　* Intelligent teaching equipment;

　　* Intelligent control of household appliances and lighting;

　　* wireless hanging scale, electronic scale for wireless transmission;

　　JZX891 data transmission module is a high-integration micro-power half-duplex wireless data transmission module, which adopts “SI” high-performance RF chip and high-speed single chip microcomputer. The module provides 8 channels, adopts national measurement frequency points, and is equipped with professional setting software for users to change parameters. The module adopts transparent transmission mode, and can transmit data of any size without the need for users to write setting and transmission programs. The module is small in size, wide in operating voltage and convenient to use.in other words Wireless Module It is possible to develop in a good direction, and there are still many places worth looking forward to in the future. https://www.hkulike.com/

　　Functional features:

　　* Working frequency is 470-510MHz.

　　* Transmission distance is 1500m (1200bps).

　　* GFSK modulation method

　　* transparent transmission mode

　　* Built-in watchdog to ensure long-term reliable operation.

　　* UART/TTL, RS232 and RS485 interfaces

　　* Convenient and flexible software programming

　　* Large 512bytes data buffer.

　　* Suitable for built-in installation

　　Scope of application:

　　* Automatic meter reading and charging system for water, electricity, gas and heating;

　　* intelligent wireless PDA terminal;

　　* Wireless queuing equipment;

　　* burglar alarm;

　　:: Smart cards;

　　* Automatic control of medical and electronic instruments;

　　* Intelligent teaching equipment;

　　* Intelligent control of household appliances and lighting;

　　* wireless hanging scale, electronic scale for wireless transmission;