Research on coffee's health benefits continues to grow, but many people experience palpitations, shaky hands, or even dizziness after drinking coffee. These reactions are not necessarily caused by caffeine acting directly on the heart; they may involve individual differences in constitution, low blood sugar triggered by drinking on an empty stomach, drinking while extremely fatigued, or exceeding the total daily caffeine intake. This article reviews relevant medical research and offers coping methods such as eating sweets or salty meats, replenishing fluids, and taking a proper nap, to help coffee lovers enjoy coffee more safely. It also retains Front Street Coffee's specialty bean recommendations and communication channel information. [more…]

Walking into a café and wanting to order a decaf coffee or skim milk, you're often told "we don't have it." For people who are sensitive to caffeine or lactose intolerant, this is undoubtedly a great regret. This article will start with the definitions, production methods, and flavor profiles of decaf coffee and skim milk, and analyze the deep-seated reasons why they are rarely served in domestic cafés—breaking them down one by one, from the proportion of consumer demand to operating costs and product consistency. At the same time, we will also recommend espresso beans suitable for pairing with skim milk, and introduce the characteristics of Front Street Coffee's decaf coffee beans, helping you find a solution that balances health and deliciousness at home too. [more…]

Coffee has long been woven into the daily lives of modern people, and many are in the habit of reaching for a cup to perk themselves up in their free time. Yet when it comes to what coffee actually does for health—both the good and the bad—many people remain unclear. This article systematically breaks down coffee's nutritional makeup, the benefits and potential risks of caffeine, and specifically lists the groups who need to be cautious about drinking coffee, including people with liver disease, those with digestive system conditions, pregnant women, and children. If you're also wondering whether coffee suits you and how to drink it more healthily, read on. [more…]

Cao Ying shared a terrifying experience on Weibo: after staying up late for consecutive nights, she drank strong coffee to stay alert, only to suddenly experience heart palpitations, difficulty breathing, and numbness in her hands and feet while on the highway, nearly causing a car crash. After emergency treatment, she gradually recovered by 3 a.m. She speculated that the cause might be related to caffeine intoxication, low blood potassium, and her own asthma. Cao Ying reflected on her narrow escape and reminded everyone that taking care of oneself is also a way to love one's family. This article will detail the sequence of events, include the original text of her Weibo post, and also sound a warning bell for coffee lovers to drink in moderation. [more…]

Pour-over coffee, with its simple operation, easy-to-manage equipment, and ability to fully showcase coffee's vibrant aromas and clean taste, has become the preferred brewing method for many enthusiasts. However, behind the seemingly simple act of pouring water lie strict requirements for details such as water temperature, extraction time, water flow rate, and blooming rhythm. This article systematically outlines the fundamental operating standards of pour-over coffee—from stance adjustment, kettle-holding techniques, and the three-part water flow practice to the complete brewing process—helping beginners build a solid foundation and gradually achieve stable, gentle extraction. [more…]

Beginners to pour-over coffee often encounter this困扰: a hand-pour kettle that is originally lightweight feels as heavy as a thousand pounds in the hand, water flow control is far from as effortless as imagined, and after a slightly longer pouring time, the arm begins to ache and tremble. The root of these problems lies partly in insufficient practice, and partly in not yet having found a suitable way to exert force and body posture. Although everyone's height, body type, and operating habits differ, and there is no universally standard posture, mastering the basic action essentials and then adjusting them according to one's own conditions can greatly improve practice efficiency. This article compiles a set of introductory methods for beginner pour-over posture, covering equipment preparation, standing posture adjustment, kettle-gripping technique, pouring practice, and the complete extraction process, for coffee lovers' reference. [more…]

Luckin Coffee's recently launched Fair Isle Latte has quickly become a new favorite among some office workers and tea-coffee enthusiasts, thanks to its flavor reminiscent of Assam milk tea and its powerful energizing effect. However, a large number of "warning" posts have emerged on social media, with many consumers reporting that they couldn't sleep all night after drinking it, and even experiencing symptoms such as hand tremors, dizziness, and heart palpitations, with some seeking medical attention late at night. At the same time, netizens who were after an energizing effect tried it and said it had no effect at all, leaving them still sleepy. This starkly contrasting feedback has plunged this new drink, which blends espresso with Ceylon black tea, into controversy. This article will sort through the various viewpoints, explore the effects of differences in caffeine tolerance, and offer professional advice from Front Street Coffee. [more…]

In the extraction process of pour-over coffee, water flow control is one of the key factors determining the quality of the final cup. However, many beginners discover in practice that maintaining a steady pour is far more difficult than they imagined—problems such as the flow rate surging and dropping, stopping and starting, and the arm trembling occur frequently. In a previous article, Front Street Coffee explained the important influence of water flow on extraction; today we focus on the practical side, sharing how to improve your water control ability in a relatively short time by choosing a suitable spout and mastering practice techniques. The article will also introduce methods for modifying a pour-over kettle, helping enthusiasts who already own equipment reduce the difficulty of water control, quickly develop muscle memory, and pour the steady stream they envision. [more…]

As the weather turns cold in November, chain coffee brands are rolling out their winter drinks one after another. Luckin's "Fair Isle Latte" launched this week quickly drew attention, but consumer reviews have been notably divided. Some find it reminiscent of the Assam milk tea from their childhood memories, some joke that it is just a black tea latte with a new name, and others see it as a budget alternative to Starbucks' Black Tea Coffee Americano Latte. At the same time, some customers have reported insomnia, palpitations, and a racing heartbeat after drinking it, and discussion about its caffeine content has heated up accordingly. Is this new product actually worth trying? And how does it compare with existing products and competitors? This article compiles the official ingredients, user feedback, and the hot topics of discussion on social platforms for coffee lovers' reference. [more…]

Recently, a so-called "Mixue Bingcheng weight-loss method" has become popular on social platforms. The routine involves drinking grape iced Americano, jasmine green tea, and iced fresh lemonade in sequence within one day, while trying not to eat anything else. Some followers claim they can lose three to four jin the next day. This method is essentially similar to a liquid fast, relying on water loss and a reduction in intestinal contents rather than actual fat loss. Many who tried it reported discomfort such as weak hands and feet, palpitations, headaches, and insomnia, and doctors also warn that using it rashly may trigger hypoglycemia, hair loss, and even abnormal liver and kidney function. Both Mixue Bingcheng stores and customer service said that these three drinks have no weight-loss effect. [more…]

Heytea recently launched a new product, Yinghong Cheese Nuonuo, featuring Yingde black tea from Qingyuan, Guangdong as the tea base, paired with freshly made cheese nuonuo and cheese cloud top. Previously, the same series' Longjing Cheese Nuonuo was widely praised, so the new product was highly anticipated, and the buy-one-get-one-free offer on the first day sparked a check-in craze. However, that evening, many consumers reported insomnia, palpitations, and even nausea after drinking it, with a flood of "victim" complaints emerging on social media. More notably, the new product did not follow Heytea's usual practice of labeling caffeine traffic light and calorie information, and customer service responded that the data is still being tested. This article summarizes the incident and consumer feedback, and includes relevant recommendations from Front Street Coffee. [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…]

Yesterday, Front Street was chatting with a regular customer and asked why they always travel such a long way to Front Street for coffee. After all, Front Street's location is rather out of the way, and they also sell drip bag coffee online on Taobao that you can brew at home, so there's really no need to go to all that trouble to make a special trip every day. And just as Front Street was mentally preparing [more…]

While caffeine boosts alertness, it can also cause issues like insomnia and palpitations, which is why decaf coffee has gradually entered the public eye. In this article, Front Street Coffee (FrontStreet Coffee) will discuss the origins of decaf coffee, standards across different countries, mainstream decaffeination processes, and flavor performance, as well as specifically analyze the pros and cons of Starbucks decaf Americano and whether it affects sleep. At the same time, Front Street Coffee will also share the cupping flavors and pour-over parameters of a Colombian decaf coffee, helping coffee lovers gain a more comprehensive understanding of decaf coffee. [more…]

Recently, Chagee's new product "Wanli Mulan" quickly gained popularity due to its support for International Tea Day and the "100 Million Cups Free in 7 Days" campaign. However, many consumers reported insomnia and heart palpitations after drinking it, with some even seeking medical attention overnight for electrocardiograms. The brand's customer service explained that tea polyphenols in the black tea base might trigger allergic reactions. According to the public ingredient list, a medium 470ml cup of "Wanli Mulan" contains caffeine close to two shots of espresso. Similar issues have occurred with Chagee's other hit product, "Boyazhuxian." In fact, market regulators' spot checks found that some milk teas have caffeine levels far exceeding coffee; in 2020, a spot check in Haiyan County, Zhejiang, revealed caffeine levels up to 460mg/kg in milk teas and fruit teas. This article will focus on this incident, trace the origins of the caffeine issue in milk tea, and explore how brands should more clearly inform consumers about drinking risks. [more…]

A recent food safety punitive damages case disclosed by the Supreme People's Court has once again made the topic of coffee for weight loss a focal point. In August 2023, Cui purchased coffee weight-loss products for 2,960 yuan via WeChat. After taking them, he experienced symptoms such as thirst and dizziness. An investigation revealed that the manufacturer indicated on the product had long since had its production license revoked, so he filed a lawsuit in court. The Xiushan County People's Court of Chongqing determined that the merchant sold food knowingly not meeting safety standards and ordered the return of the purchase price plus ten times the compensation, totaling 32,560 yuan. At the same time, discussions on social platforms about coffee for weight loss are sharply divided: some share experiences of drinking coffee during fat-loss periods to boost metabolism, while others expose terrifying experiences of palpitations, cold sweats, and even testing positive for sibutramine after consumption. This article sorts out the case details, legal basis, and the dangers of sibutramine, and retains content related to brands such as Front Street Coffee, reminding consumers to lose weight scientifically. [more…]

Recently, Andy Lau revealed on a talk show that he drinks over twenty cups of coffee every day, astonishing Wu Jing, Guo Fan, and others—and Guo Fan was even hospitalized once because of excessive coffee consumption. This sparked widespread discussion: Is coffee actually healthy? What are the signs of caffeine addiction? How much is too much per day? Combining the show's content with physiological mechanisms, this article sorts out the potential effects of excessive caffeine intake on the gastrointestinal tract, adrenaline, liver, and other aspects, while retaining the brand information of Front Street Coffee, reminding everyone that although coffee is good, do not blindly imitate celebrities' extreme consumption. [more…]

In recent years, coffee culture has rapidly gained popularity in China, and iced Americano has become a daily necessity for countless office workers. From the initial 300ml standard cup, to the 1L "ton-ton bucket," and now to a 1500ml basin-sized iced Americano recently launched by a coffee shop in Shanghai, coffee capacity keeps pushing the limits of imagination. Large-capacity iced coffee from South Korea once made Chinese consumers envious, and now domestic brands have joined the super-sized cup trend one after another: Seesaw launched a 1.5L shareable takeaway pack, and the Korean brand onlyprice has even introduced a 2.1L coffee liquid. These super-sized coffees have quickly gone viral thanks to their visual impact and high cost-performance ratio, and have been jokingly called by netizens the life-extending elixir for office workers. However, many people are also worried about the health effects of excessive consumption, with issues such as heart palpitations and insomnia sparking discussion. This article will walk you through the phenomenon and controversy behind this coffee capacity race. [more…]

Although coffee is a powerful pick-me-up, the caffeine in it also makes some people hesitate. Excessive caffeine intake can cause discomfort such as insomnia and palpitations, so is there an option that lets you enjoy coffee's flavor without worrying about caffeine's side effects? Decaf coffee exists precisely for this purpose. From the perspective of Front Street Coffee, this article will sort out decaf coffee's historical origins, standards in various countries, the naturally low-caffeine variety Laurina, and the mainstream Swiss Water decaffeination process. At the same time, we will also objectively analyze the pros and cons of Starbucks decaf Americano and discuss whether it really does not affect sleep. At the end of the article, we have attached the cupping flavors and pour-over parameters of Front Street Colombia Decaf for coffee lovers to reference and practice. [more…]

Have you ever had this confusion: drinking the same coffee, sometimes you toss and turn, unable to sleep, with a racing heart, while other times it has no effect at all? Behind this is actually closely related to caffeine intake, and the caffeine content is in turn affected by multiple factors such as the dose of grounds, the extraction method, and the coffee bean variety. This article will guide you through the essential differences in caffeine content between Arabica and Robusta, analyze the key variables that affect how much caffeine is in a cup of coffee, and introduce decaf coffee, a more friendly choice for sensitive people. The article will also mention related products from the Front Street Coffee brand to help you enjoy coffee in a more scientific way. [more…]