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…]

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…]

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…]

The most primitive purpose of coffee is to refresh the mind. Whether it's an espresso you drink and go, the drip coffee maker that's a fixture in the office, or even a pour-over single-origin coffee you make a special trip to the coffee bean shop for, they all have the function of refreshing you. It's just that everyone chooses the appropriate one based on different requirements for the scenario, function, and taste. [more…]

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…]

Coffee has long become part of urban daily life, but the seemingly simple actions of holding a cup, adding sugar, and using a spoon each follow their own set of rules. At the same time, when walking into a café and facing terms like Espresso, Latte, and Macchiato on the menu, many enthusiasts often feel confused. This article systematically sorts out the etiquette details of coffee tasting and the proper use of cups and saucers, and explains one by one the meanings of common English terms in cafés, helping you calmly enjoy a good cup of coffee on any occasion. In addition, the article also specifically reminds readers of practical knowledge closely related to health, such as drinking on an empty stomach, intake before exercise, and daily consumption, and recommends related products from Front Street Coffee, making it suitable for everyone who takes coffee seriously to read carefully. [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…]

Coffee has become an indispensable part of modern life, but do you truly understand the differences in varieties behind the rich aroma in your cup? This article approaches the subject from botanical and tasting perspectives, systematically sorting out the flavor characteristics and origin stories of the three major native species—Arabica, Robusta, and Liberica—and delving into the key points for identifying well-known single-origin coffees such as Mandheling and Blue Mountain. Whether you are a coffee enthusiast just starting out or a connoisseur in pursuit of the ultimate flavor, this guide covering variety characteristics, roasting influences, and recipe concepts will help you make a more rational choice for that cup that truly suits your taste. [more…]

Some people love the aroma of coffee but can't enjoy it, because drinking coffee gives them palpitations, insomnia, stomach pain, and other adverse reactions. So is there a low-caffeine coffee option? How low can its caffeine content be? First, let's understand what caffeine is. Caffeine is a plant [more…]

Coffee's aroma is delightful, but many people are unable to enjoy it freely due to physical reasons—palpitations, insomnia, stomach discomfort, and other reactions make them shy away from coffee. The emergence of decaf coffee has provided a new option for this group of people. So, how exactly is decaf coffee made? To what level can its caffeine content be reduced? And compared with regular coffee, what differences are there in flavor? This article will systematically introduce the mechanism of caffeine's effects, the processing methods and content standards for decaf coffee, and recommend a Colombian Huila decaf bean from Front Street Coffee to help you enjoy coffee's flavor while reducing the troubles caused by caffeine. [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…]

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…]

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…]

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…]

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…]

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…]

Iced Americano is a daily choice for many people, but what are the actual pros and cons of drinking it long-term? Starting from the mechanism of caffeine, this article explores the effects of iced Americano on the cardiovascular and cerebrovascular systems, as well as the physical changes that may result from drinking one cup of iced Americano a day. Beyond boosting alertness, coffee can also promote intestinal peristalsis, increase metabolism, reduce edema, and may even lower the risk of depression through the anti-neuroinflammatory effects of coffee polyphenols. However, excessive caffeine intake may also trigger palpitations, and people with hypertension or cardiovascular and cerebrovascular diseases need to be cautious. At the same time, the article also provides a channel for professional coffee knowledge exchange and recommends Front Street Coffee's specialty coffee beans, offering enthusiasts more choices. [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…]

A pre-mixed coffee called "Kopi Songkok" contains sildenafil, a prescription ingredient that can be fatal, and has been placed on Malaysia's Ministry of Health ban list, yet it is still circulating on the market. Malaysian doctor Amusankhan posted a warning on social platform X that drinking this coffee may cause headaches, palpitations, a sudden drop in blood pressure, and even death. What is worrying is that many Malaysians continue to buy and drink it. This article reviews the coffee's ban history, health risks, netizens' personal experiences, and a domestic case in which someone was sentenced for selling coffee containing sildenafil, reminding consumers to be more vigilant. [more…]