Moderate coffee consumption is beneficial for adults, and research shows that the upper limit for daily caffeine intake is about 400 milligrams. But how much caffeine does a cup of pour-over or espresso actually contain? And how many cups does that translate to? This article starts from the questions of customers at Front Street stores, and uses angles such as the difference in caffeine content between Arabica and Robusta, and the effect of extraction rate on caffeine dissolution, to gradually estimate the approximate caffeine content of a cup of coffee, and provide a reference for the number of cups corresponding to 400 milligrams. At the same time, it will also introduce the characteristics of decaf coffee and the Colombian decaf coffee on the Front Street bean list, helping coffee lovers who want to drink a few more cups without exceeding the limit find a compromise. [more…]

Many coffee enthusiasts care about exactly how much caffeine is in a cup of coffee and how many cups they can drink a day. Front Street Coffee has previously shared the caffeine content of different coffees, but because bean varieties, doses, and brewing methods vary so widely, it is hard to generalize. Today Front Street Coffee brings a practical caffeine calculation formula so you can estimate the caffeine content of pour-over or espresso yourself. The article will break things down from the perspectives of coffee bean variety, roast level, and extraction yield, and give specific calculation examples for a single pour-over and espresso, finally combining the daily intake recommendation of 400 mg to help you plan your coffee-drinking rhythm. [more…]

Coffee is a daily essential pick-me-up for many office workers, but how much caffeine does a cup of coffee actually contain? How many cups a day is considered moderate? This article examines caffeine content estimates, safe intake limits, and the risks of overdose and toxicity to outline the key scientific points coffee lovers need to know about drinking coffee. It covers reference caffeine values for different coffee drinks, hidden caffeine sources in energy drinks, and intake recommendations for children and adults, helping you more precisely manage your daily caffeine intake and protect your health while enjoying the flavor of coffee. [more…]

Hong Kong people love drinking coffee, and some even can't go a day without it. But foreign research reminds us that the upper limit for adults' daily caffeine intake is about 400 milligrams, equivalent to around four cups of coffee, and excessive intake may cause insomnia or high blood pressure. Many people think that coffee with milk added is gentler, but in fact it does not contain less caffeine. This article breaks down the caffeine content of black coffee, cappuccino, latte, mocha, and espresso, and includes healthy drinking tips, including avoiding drinking in the afternoon, reducing sugar, cleverly using cinnamon powder, and choosing organic coffee, while also introducing related products from the Front Street Coffee brand. [more…]

Excessive caffeine intake can easily cause discomfort such as insomnia and palpitations, with the effects being even more pronounced in people who are sensitive to caffeine. Generally, it is recommended that adults consume no more than 400mg of caffeine per day, roughly equivalent to 5 cups of pour-over made with 15g of beans or 4 cups of espresso made with 20g of beans. If you want to drink more coffee while keeping caffeine intake under control, decaf coffee is the ideal choice. Decaf coffee falls into two categories: naturally grown and artificially decaffeinated. Starting from caffeine content, this article will introduce the natural differences between Arabica and Robusta, and focus on explaining the decaffeination principles and flavor performance of the Swiss Water Process, while also comparing the differences between natural low-caffeine coffee and artificially decaffeinated coffee, to help coffee lovers make a choice that suits them better. [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…]

A seemingly ordinary lemonade actually claimed the life of a 21-year-old girl. In September 2023, University of Pennsylvania student Sarah Katz drank a beverage called "Charged Lemonade" while dining at Panera Bread, and just hours later, she tragically passed away from cardiac arrest. Her parents recently filed a lawsuit against Panera, alleging that the product contained an alarming amount of caffeine—260mg for a small cup and 390mg for a large cup, far exceeding the content of a can of Red Bull. What is even more concerning is that this drink was marketed as a "clean plant-based beverage," which led Sarah, who had a heart condition, to let her guard down. This incident has once again sounded the alarm about caffeine intake safety. [more…]

Many coffee enthusiasts are in the habit of starting the day with a cup of coffee, but do you really know how much caffeine you're drinking? People often assume coffee is the drink with the highest caffeine content, but that's not actually the case—tea leaves actually contain twice as much caffeine as coffee beans. So how much caffeine do different varieties of coffee beans really contain? How much is in a cup of pour-over, cold brew, or espresso? And how much caffeine per day is safe for an adult? This article starts with coffee bean varieties, breaks down the caffeine content of each brewing method one by one, gives practical figures based on extraction efficiency, and finally answers the popular question of how many cups of coffee you can drink per day at most. Front Street Coffee store information is included at the end of the article for readers' reference. [more…]

"Which coffee on the menu has the least caffeine?" "I really want to drink coffee, but I'm afraid I won't be able to sleep at night if I do~" In the eyes of most people, coffee is a beverage consumed precisely for its stimulating effect, but its own aroma also attracts a group of friends who pursue delicious flavors, among whom there are quite a few who are intolerant to caffeine yet "greedy for a taste" [more…]

Many people drink coffee for the energy boost, but some want to enjoy the flavor while worrying that caffeine will affect their sleep. How much caffeine does a cup of coffee actually contain? It depends on multiple factors such as the coffee bean variety, growing altitude, and extraction method. In this article, Front Street Coffee will systematically sort out the differences in caffeine content among common coffee drinks, from espresso, pour-over, and French press to ice drip and cold brew, providing reference values one by one. At the same time, it will clarify two common misunderstandings about caffeine: how to calculate the daily intake limit, and whether the roast level really affects caffeine content. For those who are caffeine-sensitive, the article also offers decaf alternatives. [more…]

Many people are captivated by the aroma of coffee, yet fear lying awake at night after drinking it. So a common question arises: do lattes, Americanos, and cappuccinos contain the same amount of caffeine? Does brewing longer make them more energizing? In fact, the caffeine content of a cup of coffee is far from simple—it depends on the coffee bean variety, growing altitude, extraction method, and even grind size. This time, Front Street Coffee will clarify everything about caffeine content in one go: the data on common coffee types, the easy-to-fall-for misconceptions, and alternative choices for those who want to avoid caffeine. [more…]

Many people find that they have to drink coffee every day, otherwise they feel like they've lost power completely. Is this merely a psychological habit, or is it true caffeine addiction? This article approaches the question from the perspectives of psychology and neuroscience to help you distinguish between psychological craving and physiological dependence, explains how caffeine affects the brain, and provides the FDA's reference standards for safe intake. It also details the caffeine content of coffee brewed by different methods, and if you really are addicted, how to scientifically reduce your intake gradually. Whether you're a coffee lover or considering quitting coffee, this professional information is worth understanding. [more…]

The acidity and bitterness of coffee are closely related to the roast level, while caffeine content is influenced by multiple factors such as variety and extraction method. From the perspective of Front Street Coffee, this article systematically reviews the definitions, bean-dropping timing, and flavor characteristics of eight roast levels, and highlights three coffee beans suitable for dark roasting: Golden Mandheling, Colombian Huila, and Queen's Estate Brazil. It also provides an in-depth analysis of the caffeine content range in coffee beans, the actual caffeine values of different brewing methods such as pour-over and espresso, and reference standards for the safe daily intake for adults, helping coffee enthusiasts fully understand the relationship between roasting and caffeine. [more…]

Friends who often drink coffee know that the acidity and bitterness of coffee are related to the degree of roasting. Recently, a friend asked Front Street what delicious dark-roast coffee beans they would recommend. Front Street would first like everyone to understand what degree of roasting means, and then see how to choose the coffee that suits them. What is the degree of roasting? According to Front Street Coffee [more…]

Electronic products are everywhere, our eyes are under long-term high load, and vision problems are becoming increasingly common. About 30% of the world's population is currently affected by myopia, and this proportion is expected to climb to 50% by 2050, with the share of high myopia not to be ignored. A recent study published in the British Journal of Ophthalmology found that the caffeine metabolite 7-MX can inhibit axial elongation in the human eye, thereby potentially slowing the progression of myopia. Based on more than two decades of medical records for 711 children in Denmark, the study offers a new potential drug direction for myopia prevention and control. This article will explain in detail the study's findings, data, and limitations, and discuss the future application prospects of 7-MX. [more…]

In recent years, milk tea has become a daily beverage for young people, but the caffeine content hidden within it is often overlooked. Some studies show that a single cup of milk tea may contain as much caffeine as three or more cups of Americano, and may even exceed the recommended daily intake. This article sorts out the sources of caffeine in milk tea, its health effects, and consumption tips, to help coffee enthusiasts and milk tea lovers make more rational beverage choices. At the same time, it also reminds readers to pay attention to the extra health burden brought by sugar and toppings. Whether you choose coffee or milk tea, only by understanding the ingredients can you drink with peace of mind. [more…]

The pace of life is getting faster and faster, and many coffee lovers find that they need a cup of Americano every day to get into the zone. Does this really count as addiction? Front Street Coffee often receives similar questions. In fact, most people's dependence on coffee is more psychological—using caffeine to give themselves a sense of ritual to start a new day. True caffeine addiction, however, causes severe headaches, mental lethargy, stomach discomfort, and whole-body distress and other withdrawal reactions when caffeine is not consumed for a long time. This article will provide a detailed explanation of whether drinking Americano daily can lead to addiction, the safe intake of caffeine, and the specific brewing method and tasting suggestions for Americano, helping everyone enjoy this daily beverage in a more scientific way. [more…]

For more specialty coffee knowledge, please follow: Front Street Coffee (Frontsteet Coffee). As we all know, the reason coffee can have a refreshing effect is thanks to caffeine. Caffeine is a central nervous system stimulant, commonly found in coffee, tea, and chocolate. When we drink [more…]

Americano is a drink many people can't do without in their daily lives, yet questions persist about whether it causes addiction and how many cups a day are safe to drink. From Front Street's perspective, this article systematically sorts through the origins of Americano, the factors affecting caffeine content, and the actual differences in caffeine intake across different cup sizes. The article will also detail the extraction parameters for Front Street's classic blend coffee beans, the ratios for making hot and iced Americanos, and offer recommendations on the number of cups to drink per day. Whether you're a beginner just getting to know Americano or a veteran who's used to having a cup every day, you'll find practical reference information here. [more…]

Americano is a coffee drink that many people enjoy. However, many coffee lovers worry about becoming addicted to coffee or consuming too much caffeine, so they sometimes struggle with the decision of whether to drink it or not. Therefore, in this article, Front Street Coffee will explain the basics of Americano. What is Americano? " [more…]