During the use of a De'Longhi fully automatic coffee machine, the indicator lights on the panel convey the machine's operating status and fault information through different states. Understanding the meaning of these light signals can help users quickly identify problems and take the correct measures. This article systematically organizes the common fault light behaviors of De'Longhi coffee machines, including warning lights turning on, lights flashing, and lights staying steadily on, and provides detailed troubleshooting steps and repair suggestions for specific issues such as a damaged brewing unit motor, coffee flowing too slowly, a clogged grinder, and a full grounds container. It also reminds users to pay attention to protecting the circuit board during inspection and repair to avoid secondary damage caused by improper operation. [more…]

During the use of a De'Longhi coffee machine, the various indicator lights on the panel will display different states to indicate the machine's current issues. This article uses diagrams to explain one by one the meanings of the water shortage light flashing and staying on, the coffee grounds container indicator light flashing and staying on, the extractor abnormality represented by the triangular exclamation mark indicator light, and the excessive bean amount issue when the grounds container and exclamation mark flash simultaneously. It also introduces the meanings of the display icons on mid-to-high-end models, including water shortage, bean shortage, full grounds container, and descaling prompts. If the problem still cannot be resolved after troubleshooting step by step, it is recommended to contact a professional repair technician. We hope this is helpful to friends who are currently using De'Longhi coffee machines. [more…]

Luckin Coffee has won the favor of many consumers with its efficiency, convenience, and affordable prices. However, in stores with surging order volumes, even the most advanced fully automatic coffee machines inevitably encounter unexpected malfunctions. Recently, a Luckin employee shared on social media a "bean-eating" phenomenon discovered during coffee machine repairs, sparking widespread discussion among netizens. From bean hopper clogs to broken steam wands, these malfunctions reflect the equipment maintenance challenges under high-load operation. This article will walk you through the details of the incident and explore how coffee shops can ensure stable equipment operation while pursuing efficiency. [more…]

Many coffee enthusiasts are familiar with using a moka pot and the brewing techniques involved, but how to properly clean and maintain it afterward is often overlooked. Although Front Street Coffee has shared a great deal of content related to moka pots, it has never systematically covered the topic of cleaning, and as a result, the back office keeps receiving requests for help with pots that have "turned black." What is called blackening is actually spotting caused by oxidation, mostly triggered by improper cleaning. With proper care, a moka pot can last for many years; without it, not only is its lifespan shortened, but it will also absorb odors that affect the flavor of the coffee. This article explains the key points of cleaning by material, teaches you how to disassemble and wash the gasket and filter screen, how to repair an already oxidized pot body, and also recommends Front Street Coffee beans suitable for moka pots. [more…]

Starbucks interim CEO Howard Schultz recently addressed employees via video, stating bluntly that many short-term decisions made by the previous management brought far-reaching negative impacts to the company and that promises to employees were not fulfilled. He revealed that feedback gathered in recent meetings mainly focused on issues such as insufficient training, unreasonable shift scheduling, and compensation and benefits that urgently need adjustment. At the same time, many stores also face difficulties such as a shortage of repair funds or delayed service after key equipment including ice machines and espresso machines broke down. Schultz promised to prioritize three core issues: personnel training, pay and benefits, and internal management, and assured that future commitments to employees will definitely be fulfilled. Since his return, Starbucks has suspended stock buybacks and fired its former chief legal counsel, but investors worry that profits will be squeezed, and the stock price continues to come under pressure. [more…]

Front Street Coffee has shared quite a few tips on using a moka pot and methods for making coffee with it, yet we've never systematically talked about cleaning and maintenance. As a result, the same question keeps popping up in our messages: what should you do when your moka pot has "gone dark"? So-called darkening refers to the pot's body turning black in spots due to oxidation, which often stems from improper cleaning after use. In fact, cleaning and maintenance are just as important as brewing—maintain your moka pot well and it will last a long time; maintain it poorly and not only will its lifespan be shortened, but it will also absorb odors and affect the flavor of your coffee. Today, Front Street Coffee will explain in detail the correct way to clean a moka pot, the key points of maintenance, and how to repair a moka pot that has already oxidized and turned black. [more…]

If a home espresso machine is neglected for a long time, extraction quality will gradually decline and may even lead to malfunctions. Using hands-on operation as an example, this article systematically explains how to clean the key parts of a coffee machine. It covers the simple rinsing and deep backflushing process for the dispersion screen, techniques for wiping the steam wand surface and soaking the tip, and key points for cleaning the portafilter spout area. Through regular maintenance, you can effectively extend the machine's lifespan and avoid costly repairs. The steps in the article are clear and suitable for coffee enthusiasts to follow on their own. [more…]

If a coffee machine lacks maintenance for a long time, extraction quality will gradually decline and may even cause malfunctions. This article takes the small espresso machine used in Front Street stores as an example to systematically explain the complete process of daily cleaning and deep maintenance for home coffee machines. The content covers key steps such as simple rinsing of the brew head dispersion screen and blind basket backflushing, wiping the steam wand surface and soaking the tip for descaling, and deodorizing the portafilter spout area. The article explains in detail the amount of special cleaning powder to use, control of backflush time and number of cycles, and precautions to avoid damaging the pressure relief valve. No matter what model is used, this method is basically universal, helping coffee enthusiasts maintain their machines at low cost and reduce the risk of needing repairs. [more…]

A coffee shop operator in Guangxi recently publicly recounted his experience: he purchased a La Marzocco PB espresso machine from a well-acquainted "coffee champion," and after only one year of use, the boiler exploded. When he applied to La Marzocco China's official after-sales service, he was told that the machine had no record in the system and was a "grey import" sold through unofficial channels. The shop owner believes the other party deliberately concealed the sales channel, and has sent a lawyer's letter and reported the matter to the police. This dispute quickly fermented within the coffee community and also drew practitioners' attention to how to distinguish genuine La Marzocco espresso machines from grey imports. Front Street Coffee reminds all colleagues that when purchasing equipment, one must make sure to buy through officially authorized channels, and not risk a big loss for a small gain. [more…]

For professional coffee knowledge exchange and more coffee bean information, please follow Coffee Studio (WeChat official account: cafe_style). For more specialty coffee beans, please add our private WeChat: Front Street Coffee (FrontStreet Coffee), WeChat ID: qjcoffeex. With the rise of specialty coffee culture [more…]

To make a good cup of coffee at home or in a shop, choosing the right equipment and doing daily maintenance are equally important. This article systematically sorts out the key points for purchasing common coffee equipment, from Turkish coffee pots, Neapolitan flip brewers, and siphon brewers to semi-automatic espresso machines, water drip coffee makers, American coffee machines, and moka pots, including the suitable roast levels and grind sizes, and also provides reference prices and purchasing suggestions for commercial equipment. At the same time, it explains in detail the cleaning process for coffee machines, the backflushing steps, and the precautions for using glass equipment, helping coffee enthusiasts and professionals extend equipment lifespan and maintain consistent product quality. [more…]

Although the moka pot is small, cleaning and maintenance require real attention to detail. Many enthusiasts casually rinse it after use, only to find oxidized black spots on the body—not only does this affect its appearance, but it can also give the coffee an off-flavor. This article systematically covers the correct cleaning methods for aluminum and stainless steel moka pots, the key points for removing and reinstalling the gasket and filter screen, and how to repair a pot that has already "turned black." At the same time, Front Street will also recommend coffee beans suitable for moka pot extraction, so you can master everything from equipment maintenance to the flavor in the cup in one go. [more…]

The moka pot is a staple piece of equipment in many coffee lovers' homes, but if daily cleaning isn't done carefully enough, the aluminum body can easily oxidize and turn black, and the gasket and filter screen are often overlooked. This article explains in detail the key cleaning points for aluminum and stainless steel moka pots, walks through the steps for removing and cleaning the gasket and filter screen, their installation orientation, and replacement intervals, and offers repair solutions using white vinegar or lemon juice soaks for pots that have already oxidized. Mastering these methods not only keeps your coffee's flavor pure, but also effectively extends the moka pot's lifespan, letting it reliably brew every cup of coffee for you for years to come. [more…]

Moka pots are convenient to use, but cleaning and maintenance involve quite a few finer points. The aluminum body easily reacts with cleaning agents, causing oxidation and blackening, and if the gasket and filter screen are not removed and cleaned for a long time, a large amount of coffee liquid and grounds will remain, affecting the seal and flavor. This article provides a detailed breakdown of the daily cleaning steps for moka pots, the differences in cleaning aluminum versus stainless steel pots, the key points for removing and reinstalling the gasket and filter screen, and the white vinegar and lemon juice repair method after oxidation and blackening. No matter which material you use, mastering these details can extend the life of the pot and make every cup of coffee purer. Front Street Coffee also offers practical reminders in the article. [more…]

Entering mid-December, temperatures across the country continue to drop, yet demand for iced drinks remains strong, and the ice machines in tea beverage shops still need to operate as usual in the severe cold of the north. Recently, an early-shift employee at Chagee arrived at the store and found the ice cube tray covered with foreign matter resembling a "spider web." Only upon closer inspection did they realize it was ice that had frozen into a thick layer overnight, preventing the machine from properly releasing the ice. This situation not only caught the staff off guard but also sparked discussions among peers about winter ice machine parameter adjustments, troubleshooting, and equipment quality. Front Street Coffee has noticed that similar problems are not uncommon in chain tea beverage stores, and how to respond scientifically has become a topic of concern for industry practitioners. [more…]

In the process of making espresso, even experienced baristas inevitably encounter various unexpected situations—crema bubbling, channeling, sharp or overly sour flavors, and every detail can affect the final flavor presentation. This article systematically sorts out several common problems in espresso making, including judging coffee bean freshness, checking extraction parameters, analyzing the causes of crema abnormalities, and diagnosing water flow conditions, and provides targeted adjustment suggestions. Whether you use a Synesso, Expobar, or other machine models, these troubleshooting approaches can help you quickly locate the root of the problem and take a step closer to an ideal cup of espresso. [more…]

Many people buy an espresso machine without really knowing how to maintain it. If it isn't cleaned for a long time, the steam will weaken, the brew head will dispense water unevenly, the extraction pressure will fluctuate, and the portafilter may even leak after being locked in. Today, Front Street Coffee will talk about how to do daily maintenance and deep cleaning of home espresso machines, so the machine lasts longer and you save on unnecessary repair costs. The article will start with the daily cleaning of the steam wand, shower screen, and portafilter, then introduce deep maintenance methods such as soaking the steam wand, backflushing the pipes, replacing the gaskets, and maintaining the water tank filter, helping you take proper care of your espresso machine. [more…]

As coffee culture becomes increasingly widespread, more and more households are purchasing espresso machines, but most users are not industry professionals and know very little about equipment cleaning and maintenance. Failure to clean regularly over time can lead to weakened steam, uneven water flow from the group head, unstable extraction pressure, and even portafilter leaks. In this article, Front Street will systematically share daily maintenance and deep cleaning methods for coffee machines, covering routine cleaning of the steam wand, dispersion screen, and portafilter, as well as deep maintenance essentials such as backflushing the pipes, replacing gaskets, and maintaining the water tank filter—helping your coffee machine run stably for the long term and avoiding unnecessary repair costs. [more…]

Many coffee enthusiasts have added espresso machines to their homes, but due to a lack of knowledge about cleaning and maintenance, problems such as weakened steam, uneven water flow, and even portafilter leaks begin to appear after the machine has been used for a while. This article systematically organizes maintenance methods for home espresso machines: from the routine cleaning of the steam wand and shower screen after each brew, to using a blind basket to backflush and remove internal residue before shutting down, and then to regularly using specialized cleaning powder for deep treatment of the steam wand, shower screen, and portafilter basket. The article also explains in detail the steps for replacing the brew head gasket after it ages, and reminds readers that water needs to be filtered to prevent scale from damaging the boiler. The article involves practical experience with the machine models used in Front Street Coffee stores, and is suitable for coffee enthusiasts to follow and implement. [more…]

For those who are new to coffee equipment, the differences between espresso machines and drip coffee makers are often confusing. This article systematically breaks down the characteristics of the two types of machines, from how they work, extraction methods, and price ranges to buying advice, and offers reference opinions for both home and professional scenarios. At the same time, the article also compiles common troubleshooting for espresso machines, the steps for making milk foam, and key details in choosing a drip coffee maker such as materials, water outlet holes, and temperature control, helping coffee lovers make more suitable judgments when buying and using them. Content involving Front Street brand recommendations mentioned in the article will also be retained for readers' reference. [more…]