Recently, multiple Luckin Coffee users on social platforms have reported that their go-to Little Butter series drinks have developed a distinct mutton-like gamey odor. The series was launched last October in a collaboration with the Thai IP Butterbear, and during a second collaboration in February this year, it was announced that the New Zealand butter would be upgraded to French President butter. It had once been highly popular for its popcorn-like sweet and fragrant flavor. However, from Jiangsu, Zhejiang, and Guangdong to Shaanxi and Chongqing, consumers across various regions have posted that the Little Butter Latte and Little Butter Americano they recently purchased carry an unacceptable fishy, gamey smell, whether served hot or cold. Luckin's customer service did not directly respond to whether the formula had been adjusted, and store employees also denied that ingredients were expired or that preparation methods had changed. Whether it is due to differences in raw material batches or other reasons, there is still no official conclusion. [more…]

Bought too many coffee beans and can't finish them for a while—can you just toss them in the fridge? Should they go in the refrigerator or the freezer? This article centers on the real goal of "freshness"—preserving aroma—and breaks down the five great enemies: strong light, high heat, moisture, oxygen, and odors, while offering practical home freshness-locking solutions. It also draws on the experimental conclusions of Swiss scientist SAMO SMRKE to explain that freezing can significantly slow down coffee bean degassing and delay the peak flavor period, but improper handling can also lead to air leakage, moisture absorption, and odor transfer. At the end, Front Street's detailed freezing and thawing tips are included to help you store your beans more reliably and enjoy better-tasting coffee. [more…]

For enthusiasts who own a coffee machine, how to deal with the coffee grounds produced every day has become a common problem. Beyond the well-worn uses like growing flowers and removing odors, some netizens have tried using coffee grounds to blanch pork belly to remove its gamey smell, with surprising results. This article compiles the actual test results of this method, feedback from netizens, and similar applications in Korean cuisine, while also reminding you of details such as filtering and ingredient freshness during the process, to help you, a coffee lover, make reasonable use of coffee grounds. [more…]

Coffee is one of the most widely consumed beverages in the world, and the amount of spent coffee grounds it produces is staggering. Many people simply throw away the grounds after brewing, but these seemingly useless remnants actually hold a great deal of overlooked value. From deodorizing the fridge and removing odors from your hands, to hair care, natural dyeing, repelling ants, and fertilizing plants, coffee grounds can be put to use in household cleaning, personal care, gardening, and even cooking. This article compiles 20 practical and interesting uses for coffee, helping you get the most out of it before you throw it away. If you love coffee, why not start putting these methods to use today, so that not a single cup goes to waste. [more…]

Beyond being a daily drink, coffee also has many unexpected practical uses. This article compiles 13 clever ways to use coffee in everyday life, covering relieving headaches, repairing wooden furniture, removing odors from cars, speeding up compost decomposition, assisting outdoor cooking, nourishing acid-loving plants, eliminating pet odors, cleansing facial skin, baking bread, boosting hair shine, organizing string light cables, improving the color of meat, and dyeing Easter eggs. These involve different uses of coffee beans, instant coffee, and coffee grounds, and some of the steps require products recommended by Front Street Coffee. Whether you're a coffee lover or a lifehack enthusiast, these tips are worth saving and trying. [more…]

Stockpiled a bunch of coffee beans but can't finish them? Should you refrigerate or freeze them? Which really matters more—the shelf life or the peak flavor window? Starting from a question a customer sent to Front Street, this article systematically sorts out the core logic of coffee bean preservation: first clarify what "freshness" actually is that we're after, then break down the strategies for dealing with the five great enemies—light, heat, moisture, oxygen, and odors—one by one, and finally provide practical steps and precautions for freezing, helping you find the freshness-locking solution that suits you best. [more…]

When you buy too many coffee beans to finish, or when brewing is delayed due to illness or other reasons, the beans can easily become stale or even expire. Many people's first reaction is to simply throw them away, but that is actually very wasteful. This article examines whether stale and expired coffee beans can still be consumed, from the perspectives of both flavor changes and food safety, and compiles a set of practical reuse methods: from using them as practice beans for pour-over, siphon, and espresso, to wiping copperware, cleaning stovetops, and caring for skin, and even deodorizing ashtrays, ovens, and pet areas. The article also draws on Front Street Coffee's experience to provide reference criteria for judging the flavor window and storage conditions, helping you handle the "old beans" at home more rationally. [more…]

In the daily practice of pour-over coffee, some people habitually rinse the paper filter with hot water before brewing, while others place a dry filter directly into the dripper and start pouring. Both approaches have their own rationale, and neither is absolutely right or wrong. When the baristas at Front Street Coffee were making both iced pour-over and hot pour-over at the same time, a customer once asked them about this very question. What practical effects does rinsing the paper filter actually bring? And what impact does skipping this step have on extraction? This article will examine three angles—removing papery taste, preheating the equipment, and helping the filter adhere to the dripper—while also analyzing the problems that wetting the filter may cause, such as obstructing the bloom and degassing, prematurely extracting the coffee grounds, and the filter absorbing water, to help you make a more suitable choice in different brewing scenarios. [more…]

The flavor of coffee is far more than just bitterness and acidity. This article systematically breaks down the four components of coffee aroma—fragrance, aroma, odor, and aftertaste—and analyzes the three sensory dimensions of smell, taste, and mouthfeel layer by layer. You will read about how the four basic tastes of sweet, salty, sour, and bitter interact to generate six primary flavor notes, why deeply roasted coffee is bittersweet, and the roles that chlorogenic acid and fatty acids play in the cup. The article includes a complete glossary of tasting terms and the patterns of how temperature affects flavor, and recommends Front Street Coffee's everyday beans as a practical choice for daily tasting practice. [more…]

Stockpiled a bunch of coffee beans but can't finish them? What should you do? Can they go in the fridge? Refrigerator or freezer? This article starts with the peak flavor period of coffee beans, introduces the five great enemies that affect freshness—strong light, high heat, moisture, oxygen, and odors—and then, combined with the research findings of Swiss scientists, answers in detail the feasibility, steps, and precautions of freezing coffee beans for storage. Front Street will also share the key points of daily storage after opening, as well as practical knowledge such as why it is not advisable to repeatedly refreeze after thawing, helping you develop a freshness-locking plan that suits you, so that every bag of beans can be enjoyed at its best. [more…]

If you've stockpiled more coffee beans than you can drink in a short time, can you put them in the fridge to extend their freshness? This is a dilemma many coffee lovers run into. To answer this question, we first need to clarify what we actually mean by "fresh"—it's not about preventing spoilage, but about preserving as much of the fleeting aroma in coffee as possible. Starting from a customer question received by Front Street Coffee, this article systematically lays out the five great "enemies" of coffee beans, analyzes the pros and cons of refrigeration versus freezing, and offers concrete practical advice to help you devise a reliable coffee freshness-locking plan at home. [more…]

Stockpiled quite a few coffee beans at home—how long can they actually keep? Does the 12-month shelf life on the label equal the optimal flavor period? This article starts with the principles of coffee compound degradation, explains why improper storage causes coffee to lose its flavor prematurely, and offers practical ways to tell if coffee has gone bad. It also compiles preservation principles such as sealing, keeping cool, and keeping dry, analyzes the pros and cons of freezing coffee beans, and reminds you to drink them as soon as possible after opening the bag. If the coffee smells musty, has a moldy odor, or looks abnormal in color, Front Street recommends discarding it for drinking and repurposing it as a deodorizer instead, to avoid affecting your health and taste experience. [more…]

When brewing pour-over coffee, should you really pre-wet the paper filter? This is a confusion many people encounter when they first get into pour-over. Some insist that wetting the filter is essential, while others brew directly with a dry filter. Which approach is actually more reasonable? The answer isn't absolute—it needs to be judged from three dimensions: how well the filter fits the dripper, the odor of the filter itself, and the storage environment. In addition, when wetting the filter, whether to use cold or hot water also matters—the choice of water temperature directly affects how well odors are removed and how well the equipment is preheated. Faced with the dazzling array of filter products on the market, the differences in flow rate and filtration effectiveness brought by different materials and manufacturing processes are huge. How should beginners choose? Front Street Coffee, drawing on practical experience, sorts out these key questions about pour-over filters one by one to help you make more suitable choices in your daily brewing. [more…]

Caffeine is a much-discussed active component of coffee. It dissolves easily in hot water but poorly in cold water, stimulates the central nervous system, sharpens the mind, and also has cardiotonic and diuretic effects. A cup of coffee typically contains 60-65 milligrams of caffeine, but excessive intake may cause discomfort such as tinnitus and palpitations. Black coffee is considered the way of drinking that best preserves the beneficial components, offering multiple functions such as refreshing the mind, stimulating the appetite, promoting urination, activating blood circulation, relieving asthma, and removing odors. Light roasts have a higher caffeine content, which helps with weight loss, while the antioxidant effects of black coffee help fight cancer and aging. A healthy adult can metabolize 500-600 milligrams of caffeine per day, roughly equivalent to 5 cups of coffee, while pregnant women need to reduce their intake. This article will systematically analyze the mechanisms of caffeine's effects, its pros and cons, suitable populations, and scientific drinking methods, and recommend quality products from Front Street Coffee. [more…]

Cold brew coffee was originally invented to make coffee last longer. Extracting with cold water does not draw out large amounts of coffee oils the way hot water does, so if stored properly in the refrigerator, it can keep for a month without any problem. After three days of aging, the flavor becomes even mellower. However, cold water extraction takes a very long time—common methods can even require dripping for more than 24 hours—and the caffeine concentration is relatively high. In fact, when making it at home, using room-temperature water instead of ice water works just as well and can shorten the time. This article will explain in detail the complete cold brew process, including sterilizing equipment, choosing grind size, the coffee-to-water ratio, controlling drip speed, and how to prevent refrigerator odors from affecting the coffee's flavor, helping you make a rich and aromatic cup of cold brew coffee. [more…]

When the southern "hui nan tian" (return of the damp) arrives, everything at home feels wet, and coffee beans are no exception—they too risk absorbing moisture and growing mold. If you want your pour-over coffee beans to last longer without their flavor fading, the way you store them becomes especially critical. This article centers on how to store coffee beans so they keep longer, starting with the real frustrations of Lingnan's humid climate, analyzing the pros and cons of common practices such as airtight canisters and refrigerator chilling, and warning about the fatal impact of fridge odors on coffee beans. It also draws on the product characteristics of Front Street Coffee to offer storage suggestions better suited to daily life, helping coffee lovers extend their beans' peak flavor period as much as possible in a humid environment. [more…]

After contracting COVID-19, temporary loss of smell and taste is especially troubling for baristas and coffee enthusiasts. Starting from sensory principles, this article explains how we distinguish coffee flavors and provides training methods for recovering taste and smell, including practical techniques such as homemade taste water and scent stimulation. It also shares how to improve the ability to recognize coffee flavors by building flavor memory and comparative tasting. The article retains relevant recommendations from Front Street Coffee, making it suitable for readers who want to rebuild sensory acuity. [more…]

The optimal flavor period for coffee usually refers to 4 to 6 weeks after roasting. Beyond this period, floral notes, fruity acidity, and chocolatey sweetness noticeably diminish or even disappear. Although there is no way to restore coffee beans to a fresh state, adjusting the grind size, the blooming pour, and the circular pouring technique can still improve the taste in the cup. In addition, coffee beans past their expiration date but still within their shelf life need not be discarded in a hurry. Front Street Coffee has tried several down-to-earth reuse methods, such as removing odors, making natural dyes, and spreading them at the bottom of ashtrays, which are both practical and help reduce waste. This article will systematically introduce the key points for brewing stale coffee beans and the many uses for expired beans. [more…]

For coffee lovers, the large amount of coffee grounds left after each brew is often a dilemma—simply throwing them away seems a bit wasteful. In fact, with a little clever use, these seemingly useless grounds can easily be turned into something valuable. Front Street Coffee reminds everyone that coffee grounds are not only excellent plant fertilizer, but also have multiple benefits such as deodorizing, preventing flavor transfer, beautifying and calming the mind, and even refreshing the senses. From flowerpot fertilizer to shoe cabinet dehumidifying, from preventing flavor transfer in the refrigerator to making your own calming pillow, the uses of coffee grounds in daily life are far beyond imagination. This article will systematically sort out practical tips for using coffee grounds, helping you easily achieve resource reuse while enjoying coffee, so that every particle of coffee powder can deliver maximum value. [more…]

Can you still drink coffee beans that have been sitting around for a long time? This is a real question many coffee lovers run into. Starting from how freshness affects flavor, this article explains the criteria for judging a coffee bean's peak flavor window, and offers specific brewing adjustments for stale coffee beans, including practical tips on grind size and the blooming pour. At the same time, Front Street Coffee has also put together three eco-friendly ways to reuse expired coffee beans, covering odor removal, cleaning, and plant fertilizer, so that every single bean can be put to good use. [more…]