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…]

Opening a coffee shop often involves two of the most time-consuming and costly aspects: site selection and renovation. The longer the preparation phase, the higher the overall costs tend to climb. Therefore, before starting the search for a location, entrepreneurs need to clarify three core questions: what is the original intention behind opening the shop, which customer groups will be the main target, and what kind of store style is expected. Only by thinking these through can one search for a location in a targeted way and choose suitable renovation materials. Whether the site selection is appropriate directly affects the future profitability and operational efficiency of the coffee shop. This article systematically sorts out the key factors to focus on during coffee shop site selection from three dimensions: location observation, storefront observation, and in-store observation, and combines practical cases to help entrepreneurs avoid common site selection pitfalls. [more…]

Luckin Coffee is known for its tidy stores, but recently many employees have spoken out on social media, reporting that quality control inspection standards are overly meticulous, with strict deductions even for hard-to-reach corners such as pipes along walls and dust on chandeliers. From rusted screws on paper towel dispensers to loose threads on aprons, the tediousness of the inspection items has sparked complaints from workers, who bluntly say they are expected to "clean the prep area like an operating room." This article will sort out the focal points of the controversy over Luckin's hygiene inspections, explore whether, under existing store decoration conditions, the requirement of spotlessness is realistic, and present employees' complex attitudes toward food hygiene inspections. [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…]

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…]

Recently, a video of multiple rats running along pipes inside a Mixue Bingcheng store in Zhengzhou went viral online, sparking consumer concerns about hygiene conditions at tea beverage shops. Store employees responded that due to the surrounding dining environment, rats are difficult to completely eliminate, but they had handled the situation according to company standards and undergo monthly spot checks. After the incident gained traction, the store in question publicly apologized, admitting to shortcomings in their work. The store has now been closed and professional agencies have been contacted for comprehensive pest control and rectification. The Zhengzhou Municipal Market Supervision Administration also stated it would intervene with inspections and handle any violations according to law. This controversy has once again brought the issue of pest and rodent control at chain restaurants to the forefront. [more…]

Recently, a consumer exposed on social media that a drink purchased from a Luckin Coffee store at a school was found with dozens of ants floating in it, sparking widespread attention. The store explained that sugar-loving ants might have crawled through the pipes into the syrup bottle, and since this order happened to be the first cup of the day, the staff failed to notice in time. Although the store has apologized and promised thorough disinfection and replacement of the syrup, and Luckin's customer service also offered five coupons as compensation, the consumer was not satisfied and has called 12315 to file a complaint, awaiting further official handling. The incident not only raised doubts among netizens about Luckin's food safety controls but also triggered heated discussion about compensation standards. [more…]

There are more and more coffee festivals, and baristas are often extremely busy. But at the seventh coffee festival held in Jayuya, Puerto Rico, a super-large coffee brewing device satisfied the coffee needs of over a thousand people at once—it is said that one brew could produce about 4,800 cups of coffee. This device consists of three parts: a water tank, a giant dripper, and a receiving container. Its appearance closely resembles an enlarged pour-over setup, using 150 pounds of local Arabica coffee beans and about 300 gallons of hot water. Although its brewing method is closer to that of a drip coffee maker, and the flavor may not be outstanding, its efficiency is astonishing. This article will take you through the structure of this device, how it operates, and the interesting details behind it. [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…]

When pulling espresso, some seemingly insignificant operational habits can, over time, have a noticeable impact on coffee quality and machine lifespan. This article compiles four easily overlooked details: why you should flush hot water before extraction, why you should remove the portafilter promptly after extraction, what hidden risks arise from leaving the portafilter locked in the group head for long periods, and how to clean the gaps in the group head. Each detail comes with specific reasons and operational advice to help coffee enthusiasts develop more standardized extraction habits, making every shot of espresso more consistent and cleaner. [more…]

Recently, a customer encountered an bizarre scene at a Starbucks store: while waiting in line to use the restroom, they suddenly heard a loud noise, and then a man hurriedly fled from the bathroom. Upon entering, they discovered that the toilet had been cracked by being stepped on and had separated from the sewage pipe, shifting more than ten centimeters. This bizarre incident quickly sparked heated discussions among netizens and unexpectedly brought up the topic of Starbucks restrooms gradually disappearing. Many netizens were surprised that Starbucks actually had restrooms, while longtime customers recalled that in earlier years, most stores had restrooms open to the public, but this convenience measure brought endless troubles for employees—filth and disorder, long-term occupation, and even people showering or washing vegetables inside. Now, new Starbucks stores are gradually no longer including restrooms, and older stores often lock them, citing malfunctions. This article takes you through the whole incident and the helpless reality behind it. [more…]

When mottled concrete walls and exposed beams were no longer novel, the interior design trend for coffee shops in 2023 took another step forward—turning the construction site directly into a business space. Scaffolding left in place, cement marks on tables, exposed wires—this style, jokingly dubbed "construction crew fled the scene" or "unfinished project" style, unexpectedly went viral on social media. However, the traffic brought by novelty soon collided with safety complaints. Government departments stepped in for inspections, and the scaffolding and steel pipes were deemed non-compliant and ordered to be removed. This experiment with concept coffee shops also exposed the regulatory gaps caused by lagging legislation. [more…]

In front of a café bar, you can often hear the "hissing" sound a barista makes while steaming milk, and you'll also notice that they always purge the steam wand for a few seconds before and after use, sometimes even keeping it wrapped in a cloth the whole time. These seemingly superfluous little habits actually reflect careful consideration for coffee quality and operational safety. Purging the steam not only expels condensation from inside the wand and prevents the milk from being diluted, but also cleans the steam holes to keep them from clogging. As for whether the steam wand should be wrapped in a milk cloth, baristas each have their own reasoning: some insist that wrapping it is safer and more efficient, while others believe it is completely unnecessary. This article will examine both sides of the argument and analyze in detail this dispute over a fine point of espresso preparation, helping coffee enthusiasts gain a deeper understanding of the correct way to steam milk. [more…]

If a coffee machine is neglected for a long time, its extraction performance and flavor will gradually deteriorate. This article is aimed at semi-automatic espresso machines equipped with an independent brew head, and systematically outlines an actionable maintenance routine, from daily external wiping, cleaning the dispersion screen and portafilter, to backflushing with a blind basket, deep cleaning with cleaning powder, and regular maintenance of the dispersion screen, gasket, and boiler. It also recommends beans suitable for espresso extraction, such as Front Street Classic Blend, Commercial Blend, Dark Cocoa Base Blend, and Specialty Blend, to help you maintain consistent output whether for a café or home use. [more…]

It is known that Costa Rica is a country with very rich water resources and geothermal resources, and Costa Rica also attaches great importance to agricultural development. It is a globally important exporter of pineapples, bananas, and coffee, and i [more…]

The coffee aroma kit is an important tool for coffee professionals and enthusiasts to conduct olfactory training, and its status is similar to that of Le Nez du Vin in the wine field. Currently, mainstream products include the 36-note Le Nez du Cafe produced by Edition Jean Lenoir in France, and the 100-note Coffee Flavor Map launched by Scentone in South Korea. The SCAA certification course uses the 36-note version, which divides aromas into four major groups, covering enzymatic, caramel, dry distillation, and defective groups. It not only helps memorize specific flavors but also reveals the patterns of flavor evolution during the coffee roasting process. This article will list the 36 aromas one by one, explain in detail the logic of the four major categories, and share specific methods for daily olfactory training, including how to use Front Street Coffee's freshly ground coffee powder for dry aroma and wet aroma comparison exercises, so as to effectively improve flavor discrimination ability. [more…]

You dialed in your espresso extraction parameters in the morning, but by noon the flow has slowed and become unstable? Besides changes in humidity and switching beans, coffee residue built up inside the group head is often the culprit. Backflushing is the key method for removing this residue—using a blind basket to force water to flow backward through the lines, then combining it with cleaning powder to deep-clean stubborn coffee grime. This article explains in detail the procedures for water backflushing and cleaning-powder backflushing, the number of repetitions, and the daily maintenance frequency, helping baristas maintain stable extraction and avoid off-flavors getting into the cup. [more…]

How to choose an espresso machine when opening a coffee shop? Many people are drawn in by claims that high-end brands hold their value, but the second-hand market hides risks. This article analyzes the arms race phenomenon in coffee machines, examines value-retention cases of brands like La Marzocco, reveals price traps and equipment pitfalls in second-hand transactions, and advises people to act within their means, consider more cost-effective equipment such as those recommended by Front Street Coffee, and keep funds for operations. [more…]

Many people prefer to finish their coffee while it is still steaming, because the aroma is at its most vibrant when the temperature is high. But once they cannot finish it, some choose to keep reheating it or repeatedly warming the cup, unaware that if these methods are done improperly, they can instead cause the coffee to lose its aroma, make the taste bland, and even bring out a burnt, bitter flavor. This article sorts out the three most common mistakes people make when keeping hot coffee warm in daily life—using a heater to keep it warm continuously, putting it in the microwave to heat it, and storing coffee in an insulated French press—and explains one by one their specific effects on flavor. At the same time, it offers a simple and reliable alternative: switch to a thermos and rely on the coffee's own temperature to maintain its heat. At the end, it also includes Front Street Coffee's reminder about re-brewing coffee grounds, to help you enjoy a good cup of coffee more completely. [more…]

White mocha and mocha appear to differ by only a color, but in reality they are vastly different from the chocolate ingredients to the calorie content. White mocha uses white chocolate syrup to replace the dark chocolate in traditional mocha, resulting in a sweeter taste and higher calories. This article will introduce in detail the ingredients, preparation methods, flavor characteristics, as well as the origin stories and calorie differences of white mocha and mocha. Whether you prefer the rich flavor of dark chocolate or the sweet taste of white chocolate, you can find practical preparation references here. Front Street Coffee has also compiled detailed recipe ratios for you, so let's take a look. [more…]