Monday, September 21 2026

Regulators Investigate Luckin Coffee Over Black Foreign Object in Ice, Food Safety Back in the Spotlight

Recently, a Luckin Coffee store in Huanggang, Hubei, was complained about by a consumer after black spot-like foreign objects were found in the ice in a drink. The incident quickly spread online and trended on social media. The customer said they vomited after drinking it, the store has refunded the money, and the local market supervision department intervened in the investigation. An initial inspection found no signs of mold. Luckin responded that it attaches great importance to the matter and has launched an internal review, but has not yet announced the results. The incident has triggered public discussion about hygiene management in chain coffee shops, and also prompted us to re-examine the potential risks in the ice-making process. [more…]

Luckin's ice cubes with white spots spark debate; official response says it's caused by light refraction in hollow ice

As coffee consumption becomes increasingly widespread, food safety has naturally become a focal point of public attention. Recently, a post circulating on social media questioned whether the white spots on ice cubes in beverages were mold, quickly sparking heated discussion among netizens. In response, Luckin officially stated that the ice cubes have a hollow structure, and when preparing drinks, air or foam enters the grooves, causing light refraction that visually appears as white spots, which disappear after stirring. Meanwhile, an on-duty barista came forward to detail Luckin's ice machine cleaning procedures and handwashing standards, vigorously proving that the store's hygiene standards are strict. Whether this incident stems from consumer misunderstanding or hidden hygiene risks, opinions vary. Front Street will also continue to monitor food safety developments in the coffee industry, providing reliable information for enthusiasts. [more…]

A Review of Specialty Drip Bag Coffee Brands: From Japanese Invention History to Pour-Over Alternatives, with Seven Front Street Coffee Origin Flavor Recommendations

Drip bag coffee has become the daily go-to for many coffee lovers thanks to its convenience and flavor profile that comes close to pour-over. This article begins with the origins of drip bag coffee,回顾 how in 1990 Yamanaka Sangyo Co., Ltd. of Japan transplanted the tea bag concept into the coffee realm, and how in 1998 Daiki Shoji improved it and achieved commercialization. It also explains in detail the differences in equipment requirements between drip bag coffee and pour-over coffee, and provides standard brewing steps and iced drink preparation techniques. Finally, the article highlights seven single-origin drip bag products from Front Street Coffee, covering Huakui, Golden Mandheling, Panama Butterfly, Yirgacheffe Red Cherry, Brazil Red Bourbon, Colombia Huila, and Costa Rica Tarrazu, introducing each region's terroir, processing method, and flavor characteristics one by one to help readers make choices according to their taste preferences. [more…]

Health Benefits and Drinking Contraindications of Yunnan Coffee: Details to Note When Pour-Over Brewing Yunnan Coffee and Front Street Recommendations

Yunnan coffee not only has a unique flavor, but when consumed in moderation, it can also bring multiple health benefits such as refreshing the mind and relieving stress. However, improper drinking methods may also trigger adverse reactions such as palpitations and insomnia. It is recommended to keep daily caffeine intake within 250 grams, roughly equivalent to two cups of coffee. This article provides a detailed overview of the precautions for drinking Yunnan coffee, including drinking time, concentration control, and interactions with medications, while also introducing the clever uses of Yunnan coffee in sobering up, removing odors, cleaning, and more. For friends who love pour-over coffee, we also especially recommend Front Street brand's Yunnan beans, and remind you to avoid mistakes such as drinking on an empty stomach or before bedtime, so that every cup of coffee becomes an enjoyment of health and deliciousness. [more…]

Drip Bag Coffee Buying Guide: Brand Flavor Comparison and Detailed Hot and Cold Brewing Techniques

Drip bag coffee has become a daily choice for many coffee lovers thanks to its convenience, but the flavor differences between brands and origins are significant. This article starts with Front Street Coffee's diverse origin series of drip bag coffees, reviews the invention history and core characteristics of drip bag coffee, explains in detail the two practical methods of hot brewing and iced brewing, and analyzes one by one the flavor characteristics and processing method backgrounds of seven Front Street drip bag coffees—Golden Mandheling, Panama Butterfly, Yirgacheffe Red Cherry, Brazil Red Bourbon, Colombia Huila, Costa Rica Tarrazu, and Yunnan Small Bean—helping readers easily enjoy a cup of consistently high-quality drip coffee even in a fast-paced life. [more…]

From coffee origin legends to the full growing and processing journey: a detailed guide to variety classification, brewing recipes, and health benefits

Coffee, derived from the Greek word "Kaweh," means "strength and passion." This article systematically traces the journey of coffee from the shepherd's legend to its global spread, explains in detail the characteristics and origins of the three major species—Arabica, Robusta, and Liberica—surveys classic single-origin coffees such as Blue Mountain, Colombia, and Mocha along with more than thirty flavored coffee recipes, introduces the varietal composition of Yunnan coffee, and provides an in-depth explanation of the entire process of coffee cultivation, primary processing, and roasting techniques, as well as the many health benefits and drinking contraindications of coffee. Whether you are a beginner just starting out or a seasoned enthusiast, you can gain practical knowledge and tasting inspiration from it. [more…]

Complete Guide to Making Coffee Ice Cubes: Do Cold Brew and Iced Coffee Need Coffee Ice Cubes?

On a hot summer day, a glass of iced coffee is a favorite for many, but ordinary ice cubes melt and dilute the coffee into a bland, watery drink. How can you enjoy the chill without sacrificing the rich flavor of the coffee? The answer is coffee ice cubes. In this article, Front Street Coffee will explain in detail how to make coffee ice cubes, including the different approaches for basic coffee ice cubes, cold brew coffee ice cubes, espresso ice cubes, and milk coffee ice cubes, and will also answer whether cold brew and iced coffee really need coffee ice cubes. With just a little advance preparation, every iced drink can keep its rich, full-bodied taste. [more…]

Can stainless steel ice cubes be used to cool coffee? A practical test comparing their effect and usability against homemade ice cubes

When drinking iced coffee in summer, it tends to become diluted toward the end, so some people have thought of using stainless steel ice cubes instead of traditional ice. Are these reusable metal ice cubes really suitable for coffee? Front Street conducted an actual comparison test, analyzing the structure of stainless steel ice cubes, their cooling speed, and their impact on flavor. The results show that although stainless steel ice cubes have the advantage of not melting, their cooling effect is far inferior to homemade ice cubes, especially performing poorly in the ice pour-over step. The article also shares a pour-over plan using a mix of the two types of ice cubes, and explores why coffee shops rarely use stainless steel ice cubes. [more…]

The Complete Guide to Ice Cube Coffee: How to Make Ice Cube Americano and Ice Cube Latte with Recipe Ratios

For office workers racing against the clock every morning, squeezing in a few extra minutes of sleep is what really matters. Is there a coffee that doesn't require fresh grinding and brewing on the spot, yet still delivers a decent taste? The answer is ice cube coffee—freeze brewed coffee into cubes in advance, and when you want a drink, just drop them into a cup, add some water or milk, and in thirty seconds you have an iced americano or iced latte. Today, Front Street Coffee is here to break down the ice cube coffee method in detail, including the ratio of espresso to water, the steps for making both americano and latte versions, and tips for freezing and storage, so you can easily enjoy a proper cup of iced coffee even on a busy morning. [more…]

Replacing Regular Ice with Stainless Steel Ice Cubes for Iced Pour-Over? Front Street Tests Cooling Effect and Flavor Differences

On a scorching summer day, you want to drink iced pour-over but worry the flavor will be watered down, so a friend suggests: use stainless steel ice cubes to cool down hot pour-over—wouldn't that give you both full flavor and a refreshing chill? This idea sounds beautiful, but through comparative experiments, Front Street Coffee found that although stainless steel ice cubes can preserve coffee concentration, they fall short of traditional ice cubes in temperature and mouthfeel. This article documents in detail the parameter differences between regular iced brew and the experimental iced brew with stainless steel ice cubes, the actual measured temperature results, and the inherent shortcomings of stainless steel ice cubes—slow cooling and not cold enough—to help you decide whether they are worth using in iced pour-over. [more…]

How to Make Coffee Ice Cubes? Three Pre-Made Methods and Usage Guide for Lazy Iced Coffee

As summer temperatures climb, iced coffee becomes a daily necessity, but cold brew filtering is time-consuming and low-temperature extraction is picky about beans—not everyone is willing to wait. Front Street shares a pre-made solution that gets you out the door in one minute—freeze coffee liquid into cubes ahead of time, then dilute with water or milk when drinking, easily recreating iced Americano, iced latte, and iced pour-over. Although overnight freezing loses oils and some aroma, its advantage lies in being simple, convenient, and fast. Below are the extraction parameters, dilution ratios, and step-by-step instructions for three types of ice cubes, along with a Big Belly脐 pour-over demonstration, for time-pressed coffee lovers to reference. [more…]

Why Does Coffee Shop Ice Melt More Slowly? A Complete Guide to Hand-Brewed Ice—from Ice Machines to Choosing the Right Ice Type

When drinking iced Americano, have you ever noticed that the ice cubes at coffee shops always seem to melt more slowly than the ones at home? From equipment differences to ice cube shape, and even the actual amount used, every detail affects the taste and staying power of cold coffee. Starting from the role of ice cubes, this article analyzes the differences between commercial ice machines and household refrigerators, explains why coffee shops tend to use smaller, more uniformly shaped ice cubes, and also shares the reasons Front Street Coffee insists on using refrigerator ice along with actual comparison tests. If you want your iced pour-over to cool down properly without being overly diluted, the answer you're looking for may be here. [more…]

Luckin's ice-amount controversy keeps simmering: office workers pushed to the brink of breakdown by notes telling them to "count the ice cubes"

Luckin's cold drinks do not offer a "no ice" option, and the problem of excessive ice has repeatedly trended on social media. To get a drink that suits their taste, consumers have begun to "report" the exact number of ice cubes in the remarks section, and even make various demands about the shape and temperature of the ice, leaving store employees utterly exhausted. From "less ice, 10–12 cubes" to "two little heart-shaped ice cubes," and even "no ice but with a frosty feel," these bizarre remarks not only reflect consumers' obsession with ice levels but also push Luckin's workers into a dilemma where "whatever they do is wrong." This article compiles a large number of real order remarks, presenting this tug-of-war over ice cubes. [more…]

How to Make Ice Cube Coffee? Espresso Freezing and Storage Tips with Three Pre-Made Options: Iced Americano, Iced Latte, and Iced Pour-Over

On a scorching summer day, a glass of iced coffee never fails to bring instant refreshment. But on a busy morning, who has the patience to wait for a cold brew to slowly filter? This time, Front Street Coffee is sharing a lazy-person solution that only requires freezing coffee liquid into ice cubes ahead of time and simply adding water or milk before heading out—ice cube coffee. The article breaks down in detail three methods: ice cube Americano, ice cube latte, and ice cube pour-over, explaining everything from bean selection and extraction parameters to freezing and melting details, while also objectively analyzing the loss of oils and aroma in pre-made coffee. If you want to sleep ten extra minutes without giving up a decent glass of iced coffee, this method is worth a try. [more…]

Luckin Store's Refusal to Provide Ice Ignites Debate: How to Balance Food Safety Rules and Customers' Emergency Needs

Recently, a post about a Luckin Coffee store refusing to provide ice to a customer for her child to use as a cold compress to reduce swelling sparked widespread discussion online. The customer, whose child had suffered a head injury and urgently needed ice, was politely declined by staff citing company policy, and was suggested to seek help at the KFC across the street. Behind this incident lies the dilemma that chain beverage brands face between food safety control and customers' emergency needs. Luckin employees revealed that the rule against providing ice separately stems from a previous incident in which someone sent store ice for testing, triggering an economic dispute. Since then, bar-counter surveillance has been monitoring in real time, and those who violate the rule may face bonus deductions. However, when customers face special emergencies, should there be room for flexibility? Front Street Coffee takes you into an in-depth discussion of this topic. [more…]

What Happens When You Replace Hot Water with Cola to Brew Coffee? A Hands-On Comparison of Iced Cola Pour-Over vs. Cola Ice Cube Pour-Over

Can cola actually be used to brew coffee? Front Street Coffee, out of curiosity, conducted two rounds of hands-on testing: in the first round, iced cola was used directly instead of hot water to extract Front Street Blackberry Coffee; in the second round, cola was frozen into ice cubes while hot water was still used for brewing, to compare the flavor differences between the two. The results showed that when iced cola was used for direct extraction, the low temperature and abundant bubbles hindered the release of soluble coffee compounds, making the final product taste more like a glass of coffee-flavored iced cola; whereas when cola ice cubes were used instead, the coffee flavors were finally preserved, with raisin, floral, and berry notes clearly emerging, layered with the icy sweetness of soda, making the overall cup refreshing and mellow. This article fully documents the parameters, brewing steps, and flavor observations, and is suitable for coffee enthusiasts who want to try a new method at home. [more…]

How to Make Iced Pour-Over Coffee: A Detailed Guide to Coffee-to-Water Ratios and Stainless Steel Ice Cube Alternatives

Want to enjoy a refreshing glass of iced pour-over coffee but worry that melting ice will dilute the flavor? This article focuses on making iced pour-over, with an emphasis on explaining why you need to adopt a "high concentration, low extraction" approach to redesign your brewing parameters, and offers specific coffee-to-water ratio recommendations. It also discusses whether stainless steel ice cubes can replace regular ice, along with related product recommendations from Front Street Coffee. Whether you're a beginner just getting into pour-over or a seasoned enthusiast looking to refine your summer iced coffee recipe, you'll find practical solutions here. [more…]

Luckin Coffee's ice cube controversy hits trending searches again, staff say the ice itself also has a cost

Luckin Coffee has once again trended on Weibo over an ice cube issue, just over ten days after the previous controversy of "half a cup left after ordering no ice or less ice." On March 25, a woman in Heze, Shandong Province, posted a video saying that a full-price Raw Coconut Latte she bought was gone after three or four sips, with nothing but ice left, sparking widespread resonance among netizens. Many netizens shared similar experiences, joking that "a cup of Luckin is half a cup of ice." A Jimu News reporter contacted the store involved, and an employee said that an iced Raw Coconut Latte itself is only half a cup, with the other half being ice, emphasizing that ice also costs money. Luckin customer service responded that the drink is made according to a unified recipe but did not directly address whether the amount of ice complies with regulations. This article will review the course of the incident and the responses from all parties. [more…]

How long should cold brew coffee be stored sealed? Is it necessary to use coffee ice cubes when making iced coffee and cold brew?

Cold brew coffee is popular in summer and usually requires steeping coffee grounds in the refrigerator for 12 to 18 hours. Although it takes a long time, the flavor is outstanding. Compared with hot coffee, iced coffee is more like a dessert in a cup. With ice cubes, coffee, flavored syrup, and dairy products added, the combinations are rich and easy to make at home. Choosing the right coffee beans is key. Deep-roasted Front Street Brazil coffee and Front Street Mandheling coffee are both good base choices; if you prefer floral cold brew, Front Street Fruit Ding Ding can be the first choice, if you want black coffee with obvious fruit flavor, buy Front Street Strawberry Candy, and if you are after ripe tropical fruit notes, Front Street Xizhua is recommended. In addition, the type of ice cubes affects the drinking experience, and the storage time of leftover cold brew coffee also needs attention. Front Street suggests drinking low-temperature extracted coffee within 5 days. [more…]

Is It Feasible to Use Dry Ice Instead of Ice Cubes for Iced Pour-Over? A Comprehensive Analysis of Cooling Methods for Pour-Over Coffee

Iced pour-over coffee needs rapid cooling, but ordinary ice cubes melt and dilute the coffee's strength. Some friends suggested using non-melting stainless steel ice cubes, but that attempt failed; then someone else recommended dry ice, which cools quickly and doesn't cause dilution. Dry ice can indeed chill coffee rapidly without turning into water, but when it sublimates it releases carbon dioxide, which dissolves into the coffee and turns a cup of iced pour-over into carbonated coffee—essentially deviating from what's wanted. This article provides a detailed analysis of dry ice's physical properties, its everyday uses, and why it's unsuitable for making pour-over coffee, along with Front Street Coffee's key points from their dry ice experiments and a recommended bean list. [more…]