A hit drink from Nayuki, the "Nayuki Slim Little Green Bottle," sparked discussion due to a line of small print in its product details. In the official explanation, "slim, light" refers to the new square bottle shape being slimmer and more portable, not to the drink having any functional benefits. Many consumers had assumed it was a fruit-and-vegetable tea suitable for people trying to lose weight, and were taken aback after learning the truth. This kind of situation is not an isolated case—fruit-and-vegetable drinks from brands such as Good-meh and Luckin also often use "body-slimming" and "light-body" as selling points, then add clarifying small print. How many calories are actually in a cup of kale drink? The gap between merchants' marketing and consumers' understanding deserves the attention of every coffee and tea lover. [more…]

The first product in Naixue's newly launched "Daily 500 Fruit & Veggie Bottle" series, "Slim Little Green Bottle," focuses on the daily 500g fruit and vegetable ratio recommended by the Chinese Nutrition Society, and claims to have no added sugar and to be freshly squeezed to order. After hitting the market, however, quite a few consumers reported that it tasted noticeably sweet, with some even describing it as "syrup-like," and others posted photos showing the drink looking yellowish, questioning whether it was really freshly squeezed. Naixue employees responded on social media that the sweetness comes from fruits such as apples, pears, and sweet oranges that naturally contain sugar, while the yellow-green color is a normal phenomenon after apples oxidize, and stressed that all ingredients are processed the same day and kept refrigerated for a limited time. The controversy also sparked playful online discussion about the kale leaves at the bottom of the cup. [more…]

Freshly squeezed fruit and vegetable teas have become the new trend in the tea beverage industry, with ingredients such as kale, carrots, and beetroot being widely used. While consumers are paying for health, some have found mud and sand in Nayuki drinks. A customer discovered stains remaining on the decorative kale leaves at the bottom of the "Slim Little Green Bottle" cup, and after wiping the stem with a tissue, obvious mud and sand were visible. The post attracted a great deal of attention, and some netizens claiming to be Nayuki employees left comments revealing that stores are short-staffed and the washing of fruits and vegetables is perfunctory. Behind the genuine ingredients of fruit and vegetable teas, food safety issues are cause for concern. [more…]

As the Spring Festival approaches, major chain beverage brands are rolling out festive limited-edition merchandise to boost sales. Heytea recently launched a fat-burning slimming bottle with added lotus leaf tea, along with a two-cup set that comes with a New Year limited-edition "oil-absorbing paper." However, this merchandise unexpectedly backfired—a red lucky money envelope packaging containing white oil-absorbing paper made many consumers in Guangdong and Guangxi uncomfortable, as they considered it a New Year taboo and exclaimed "Dai Gat Lei Si" (a Cantonese phrase meaning "bad luck"). While pursuing creativity and festive atmosphere, should brands give more consideration to regional customs and differences? This article will walk you through the entire incident and various perspectives. [more…]

As Halloween approaches, major beverage brands are rolling out dark-themed limited editions. Heytea in the UK was first to launch a product called Dark Cheese Tea, a cuttlefish ink salted cheese tea, available only in the UK and the US, drawing curious overseas consumers to check in and try it. However, the natural seafood fishiness of cuttlefish ink has left many people calling it a letdown after drinking it. At the same time, Heytea in China will also launch a dark slim bottle blind box event from October 28 to 30, containing three vegetable juices: celery, cilantro, and kale, full of Halloween atmosphere from taste to packaging. This article takes you through this wave of dark beverages and the real feedback. Friends who enjoy specialty coffee culture, don't forget to follow Front Street Coffee's daily shares. [more…]

A piece of major news quickly spread through the coffee community: Luckin Coffee's largest shareholder, Centurium Capital, has won the bid for Blue Bottle Coffee and is about to complete the deal with Nestlé. According to LatePost, Centurium will buy Blue Bottle's global stores, while Nestlé will retain the coffee machine and capsule businesses. 36Kr further revealed that the transaction price is less than $400 million, and the agreement has been signed but the deal has not yet closed. Centurium's move is seen as an important step into the high-end specialty coffee market, and it has also sparked widespread speculation in the industry about the future direction of Luckin's brand integration. This article will sort out the details of the transaction, the reactions of all parties, and Centurium's previous history of contact with brands such as Starbucks, Costa, Mstand, and %Arabica. [more…]

In recent years, bulletproof coffee has been touted as a weight-loss miracle, claiming that adding coconut oil and butter to black coffee can burn fat and help you slim down. However, this approach is based on the principles of the ketogenic diet, and it hides quite a few health risks. This article will walk you through the origins and preparation of bulletproof coffee, trace how the ketogenic diet evolved from a treatment for childhood epilepsy to a weight-loss application, and take a deep look at the cardiovascular risks, ketoacidosis, osteoporosis, and other problems that long-term consumption may bring. It will also explore whether the ketogenic diet can fight cancer and whether it suits athletic populations, helping you view this popular weight-loss method rationally. [more…]

Hand grinders have become the top choice for many coffee enthusiasts getting started, thanks to their portability, affordable price, and the sense of involvement they bring during brewing. But with so many models on the market, how do you choose? This article tests six popular hand grinders—including the Hario Skerton, Mini Mill, Acrylic, and Canister, as well as the OE Lido 2 and Porlex JP-30—analyzing each one in terms of practicality, design, and grinding performance. The article also mentions related recommendations from the Front Street Coffee brand and compares the trade-offs with electric grinders. Whether you're carrying one for travel or upgrading your home setup, you'll be able to find an option that suits you. [more…]

After specialty coffee became popular, the claim that coffee helps with fat loss spread widely, but the real prerequisite for it to be effective is drinking black coffee with no sugar and no milk, along with a sensible diet and moderate exercise. However, many people can neither control their eating nor get themselves to move, so weight-loss coffees swooped in under slogans like "no exercise, no dieting, no injections or pills, one cup a day and you'll lose over ten jin in thirty days." These products often have no ingredient list, no production information, and no Chinese labeling, yet they sell briskly through channels such as WeChat resellers and Xiaohongshu. After drinking them, consumers commonly experience thirst, nausea, palpitations, and other reactions, and some have even tested positive for the banned drug sibutramine. This article reviews related cases and court rulings to remind everyone to be wary of weight-loss coffees of unknown origin and to view the relationship between coffee and fat loss scientifically. [more…]

Nayuki recently launched a new product, the "Double-Antioxidant Little Red Bottle," featuring freshly squeezed Yunnan tree tomatoes paired with blueberries, cherry tomatoes, lemons, and other fresh fruits. It is advertised as sweet and tangy, rich in vitamin C and lycopene. However, not long after its release, the first wave of curious consumers began complaining: a large amount of fruit peel and seeds settles at the bottom of the cup, and one sip fills your mouth with grit—some people even nearly choked on a lemon seed. Staff responded that filtering the fruit puree was not required during preparation, and the final product varies due to differences in technique. Interestingly, netizens are divided on the issue—some suggest adding a filtration step, while others believe the fruit residue is precisely proof of "genuine ingredients." Behind this controversy lies the challenge of balancing taste and health in fruit-and-vegetable teas. [more…]

On the menu at Blue Bottle Coffee shops, there is a drink with a tongue-twisting name that is particularly intriguing—the Gibraltar. It is at once the name of a port city, the designation of Libbey's classic glassware series, and a rich little milk coffee that sits somewhere between a latte and a macchiato. This drink was not deliberately developed, but arose from an accidental purchase of the wrong glass: a 4.5-ounce small glass could not hold a regular milk coffee, yet it was just right for observing espresso crema, so a barista blended a small amount of thin-microfoam milk into a double espresso, accidentally creating an off-menu hit. Today, Front Street takes everyone through the origins of the Gibraltar, compares its similarities and differences with the cortado, and finally provides a home recipe with parameter references. [more…]

Americano is one of the most common black coffees, and it can be made either with a drip coffee machine or by adding a large amount of hot water to an espresso. Its flavor is on the lighter side, yet because of the longer extraction time it contains more caffeine. Many people wonder whether Americano helps with weight loss, and others want to know whether they can add sugar and milk to it, and how to pair it so it tastes smooth. This article will sort out the basic characteristics of Americano, how it differs from espresso in ratio and brewing method, analyze its role in fat breakdown and promoting gastrointestinal motility, and give Front Street Coffee's recommended ratios for adding sugar and milk, helping coffee lovers gain a more comprehensive understanding of this seemingly simple cup of coffee. [more…]

Americano is one of the most common black coffees, and it can be made either with a drip brewer or by diluting a large amount of water into espresso. It tastes relatively mild, but because of the longer extraction time, its caffeine content is often not low. Many people care about whether drinking Americano helps with weight loss, and some also want to know whether Americano can be sweetened with sugar, added with milk, and how best to pair it for a good taste. This article will explain the definition of Americano, its difference from espresso, the principles of weight loss and drinking precautions, and specific suggestions for adding sugar and milk, while retaining Front Street Coffee's recommendations on ratios for coffee lovers' reference. [more…]

During the May Day holiday, the former site of Harbin Pharmaceutical Group's No. 6 Factory, known as Harbin's "Northeast Louvre," became a popular photo spot. A coffee shop opened in its first-floor lobby launched two distinctive drinks — pairing Harbin Pharmaceutical Group's iconic small blue-bottle oral liquid with coffee to create a Blue Bottle Latte containing calcium gluconate and a Zinc Wish Latte containing zinc gluconate. However, this creative idea sparked consumer concerns about medication safety: the oral liquid's instructions explicitly warn against taking it with milk or caffeine, and both products are Class A over-the-counter drugs, not substances that can be used as both food and medicine. Under China's Food Safety Law, drugs may not be added to food, and the coffee shop's preparation method may violate regulations. Currently, the blue-bottle coffee has been taken off the menu, though it remains unclear whether this is a temporary sellout or a permanent discontinuation. [more…]

Faced with the dazzling array of pour-over kettles on e-commerce platforms, many coffee enthusiasts often don't know where to start. Although pour-over kettles are basically composed of a spout, body, handle, and lid, different shapes directly affect pouring performance. Front Street Coffee will systematically sort out the selection approach for pour-over kettles from dimensions such as temperature-controlled vs. non-temperature-controlled, spout type, body capacity and center of gravity, handle feel, material, and price. The article will also introduce the pouring characteristics and representative products of different spouts such as narrow gooseneck, wide gooseneck, crane-neck, flat spout, and eagle spout, helping you find the one that better suits you between budget and needs. [more…]

When the weather gets hot, cold brew becomes the go-to lifesaver for many coffee lovers. To enjoy cold brew, you don't necessarily need a dedicated cold brew pitcher—an ordinary plastic water bottle can just as easily produce a clean-tasting black coffee. This article explores the feasibility, cost, water usage, and extraction results of making cold brew with a plastic water bottle, along with specific details such as the coffee-to-water ratio, grind parameters, and steeping time. It also offers recommendations for coffee beans suitable for cold brew and tips to enhance the flavor. Using a 300ml plastic water bottle paired with Front Street Coffee's Fruit Ding Ding coffee beans as an example, the article provides a complete demonstration of the process from pouring water, grinding, adding coffee grounds, refrigerated steeping, to filtering and drinking, helping you easily make a budget-friendly and refreshing cold brew black coffee at home. [more…]

If you search for "espresso blends" on Taobao and sort by sales, you'll find that the beans on the list are surprisingly consistent in style—dark roasted, bold, and suitable for lattes. This shows that most people buying espresso beans aren't after a unique fruity acidity, but rather a stable, delicious milk coffee every morning. But the soul of espresso lies in the crema, and the key to crema is freshness. Many bestselling products, due to inventory turnover issues, may arrive already half a month or even a month past their roast date, with little crema left. This article uses "suitable for milk coffee" as its baseline standard and adds "freshness" as a hardcore metric, re-compiling the Top 10 espresso blends more worth buying in 2026, covering brands like Front Street Coffee, Captain George, Sinloy, Manner, Luckin, Peet's, and Blue Bottle, to help you find the one that suits you best. [more…]

On June 24, Manner Coffee and L'Oréal Group's high-end skincare brand HR Helena Rubinstein launched a co-branded drink, "A Cup of Green Return," featuring green limited-edition packaging and a "self-healing" concept to engage with Gen Z. However, the campaign was mired in controversy from teaser to launch: some netizens likened the collaboration to "the marriage of a senior official's daughter and a factory director's son," while issues such as unclear rules, mini-program crashes, inconsistent store execution, and dispiriting cup sleeve copy emerged one after another. Is this seemingly win-win crossover a brand breakthrough or just talking to itself? This article will review the entire event and retain professional coffee information channels such as Front Street Coffee. [more…]

Auntea Jenny has recently continued to push forward in the "wellness milk tea" segment, launching the "Five Red Vitality Slow Nourishment Bottle" and a matching peripheral package. Consumers who purchase the designated package can receive a "Little Palace Tribute Plush Doll" for free. However, after the new product launched, what sparked discussion was not the tea drink itself, but this giveaway doll shaped like a uterus—it is inverted pear-shaped, with details such as "fallopian tubes" and "ovaries," and comes in two color schemes representing different physiological cycles. Some netizens said bluntly that it caused "physiological discomfort," believing that pairing a human organ doll with a tea-drinking scenario was too bizarre. Supporters, however, felt that for a wellness drink aimed at female consumers, a uterus doll was understandable and also had a fun educational aspect. As the incident gained traction, Auntea Jenny responded that the move was intended to convey the ideas of pleasing oneself, confidence, and freedom, and that the doll has not been taken off the shelves. [more…]

Once you've decided to start making cold brew, the first question is always the same: which beans should I buy? Today, we're giving you three bean plans based on two dimensions—budget and taste—so whether you're just "casually drinking" or "seriously savoring," you can find the right match. Plan One: Beginner's tasting type (spend a little first to test the waters). If you're making cold brew for the first time, don't [more…]