Showing posts with label Coffee. Show all posts
Showing posts with label Coffee. Show all posts

Tuesday, April 28, 2026

The Coffee Generation Gap: Gen Z is Brewing at Home—Who’s Even Going to Cafes Anymore?

 From the audience profile of Pu’er coffee, most consumers fall within the 25–35 age range. This group also represents a major driving force in the domestic consumer market. As coffee culture continues to spread and gradually becomes part of everyday life, home coffee equipment is constantly evolving and upgrading alongside it. With the growing accessibility of home setups—such as espresso machines with precise temperature control and high-quality grinders—as well as specialty coffee beans, recreating a cup at home that “rivals a café” has become entirely achievable. From my own observations, many coffee enthusiasts around me are not only café-goers, but also regularly brew coffee at home. Most of them own fairly complete brewing setups, and some have even installed commercial-grade equipment in their homes.


This leads us to an unavoidable question: when my “kitchen” understands my taste better than the café downstairs, and when AI can even pour latte art for you, how much is the “human touch” of a café still worth? When coffee machines begin to “think,” what exactly can cafés continue to sell? In reality, many people’s coffee consumption habits are already shifting—from “going out for coffee” to “making it at the table.” Data shows that Gen Z consumers aged 18–24 are particularly drawn to fruit-based and tea-infused coffee drinks. They are willing to pay premiums for collaborations, view home coffee as a form of “social currency,” enjoy DIY, and love sharing their creations on social media. They also tend to favor capsule machines and convenient solutions. Those aged 25–39, the backbone of the workforce, typically consume one to three cups per day and pay close attention to origin and roasting techniques. Among this group, home coffee users are growing rapidly, with a 45% increase in the adoption of fully automatic machines—reflecting a pursuit of balance between quality and efficiency. Consumers aged 35–49 tend to prefer low-caffeine and health-oriented products, often bringing their children along to experience coffee culture, and their average spending per order is about 20% higher than the market average. Meanwhile, among those over 50, around 70% prefer low-caffeine coffee, show strong loyalty to traditional espresso, and favor user-friendly smart machines.


It’s clear that many people are considering investing in home coffee setups. For coffee lovers, the demand for home equipment is essentially about an “externalized sense of satisfaction.” The emotional reward of making a cup yourself—of crafting a latte art design—is fundamentally different from simply buying a cup every day. Younger consumers, in particular, want to enjoy a café-level experience at home, prioritizing factors like refrigeration, convenience, customization, and craftsmanship. In the past, many of my colleagues would bring a bottle of homemade cold brew to the office during summer. Whatever they didn’t finish could be stored in the office fridge—because, quite simply, “what you make yourself just tastes better.”


Even so, what value do cafés offer today? For those who can already make a decent cup at home, are they still willing to walk into a café? Speaking for myself, while part of my motivation for visiting cafés is to gather material for writing, I still ultimately serve my own needs first. Even though I have a fairly complete commercial-grade setup at home, I still enjoy going to cafés. In fact, the value of cafés is evolving. You’ll find that most cafés have shifted from being purely functional places that “serve a good cup of coffee” to becoming experience-driven spaces that offer layered, multifaceted value.


From a product standpoint, although the number of home coffee users is growing, those willing to invest over $1,000 in a machine remain a minority. When it comes to espresso, the difference in equipment quality truly embodies the principle of “you get what you pay for.” Even high-end home machines struggle to replicate the results of top-tier commercial espresso machines worth tens of thousands of dollars, paired with premium grinders and supported by tightly controlled roasting and extraction environments. In this sense, cafés serve as the most accessible “laboratories of ultimate flavor” for the average person. By simply visiting a café, you can experience the synergy of these high-end tools—without having to invest in them yourself.

This is also why competition among cafés has become so intense. When home coffee can reach an “80 out of 100,” cafés must aim for “95 or higher”—especially given how many cafés there are. Another important factor is variety. Most home users are unlikely to invest in equipment like cold drip towers or complex cold brew systems just for one or two cups, nor can they realistically maintain a selection of a dozen different beans from various regions and processing methods. Cafés effectively offer a “low-cost gateway to exploration.”


There is, however, one core value of cafés that will never disappear: their role as a space of emotional and psychological belonging. This is not just an abstract concept—I deeply believe in it. My own journey began with a love for cafés, and only later did I start to explore and study coffee itself. A café is a place of escape and transition—a “third space.” Home is the “first space,” filled with responsibilities and daily routines; the office is the “second space,” defined by pressure and KPIs. The café, by contrast, offers a “bounded public environment.” Here, you can be surrounded by people without feeling lonely, while still maintaining anonymity and freedom. This kind of “loosely connected” social experience is something the home cannot provide.

Think of neighborhood cafés: after work on weekdays, waves of customers still come in. They’re not just there for coffee—they want to sit for a while before heading home. They might strike up conversations with strangers, unwind, or simply enjoy the sensory journey—from the chime of the doorbell upon entering, to the ambient music, to the sight of a barista behind the counter, to the delicate coffee cups. This entire sequence creates a subtle sense of “self-reward,” and that ritualistic feeling is a vital part of the consumption experience.

Another important function of cafés is their role as micro cultural hubs. Many café owners host cupping sessions, latte art workshops, or even small exhibitions, connecting local creative communities. This kind of real, human interaction is something that “online socializing” can never fully replace. Ultimately, a café’s core competitiveness no longer lies in whether its coffee tastes better than what you can make at home, but in whether the space itself draws you in—and whether the barista and the community atmosphere give you a reason to return.

Monday, March 23, 2026

The Miniature World of Coffee: Unboxing My Kalita x BANDAI Gashapon Collection

 I’m back with another installment of my "Coffee Aroma Journey" gashapon series! Before I knew it, my collection had grown into a massive stash—I’ve easily got dozens of these little capsules by now.

I’ve always felt that gashapon culture captures the very essence of Japanese craftsmanship (shokunin). It’s more than just a toy; it’s a tiny, interactive world that offers a moment of inner peace. Through these miniatures, you get to trace a brand’s history and feel the timeless charm and evolving role of coffee culture across different eras and countries.

Today, I’m unboxing the Kalita Miniature Collection by BANDAI. This 8-piece set features Kalita’s most iconic gear: various hand grinders, the signature three-hole trapezoid drippers, filter papers, and that gorgeous copper pour-over kettle. Honestly, even without the logos, the silhouettes alone scream "Kalita." That’s the definition of a true classic.

So, let’s dive into these capsules while chatting about the stories and design brilliance behind them. I’ve realized that the world of gashapon forces me to focus on details I usually overlook—it’s a fun way to have a "self-dialogue." I guess I really am a total "gashapon head," haha!

The Kalita Legacy: Bringing Professional Coffee Home

The Kalita story began in 1958. Back then, coffee in Japan was something you only found in specialized cafes and restaurants. Kalita’s breakthrough was simplifying professional techniques so regular people could enjoy great coffee at home, quickly becoming a household name.

Many of their products are still handcrafted by Japanese artisans—take the metalwork from Tsubame City in Niigata, for example. The brand has a strong "craftsman DNA." Since their designs are often inspired by professional baristas, they strike a perfect balance between being "down-to-earth" and highly functional. They are masters at using the physical properties of copper, ceramic, and cast iron to enhance extraction flavors.

The "Origin Story": The Three-Hole Trapezoid Dripper

In this 8-piece set, the first highlight is the classic three-hole trapezoid (or fan-shaped) dripper. I’d call this Kalita’s "bread and butter." Launched in 1959, it practically defined the home-brewing style in Japan.

The trapezoid shape was originally designed to fit the coffee carafes common in Japanese homes at the time. The three small holes at the bottom ensure even water distribution, allowing for a uniform extraction of the coffee bed. Meanwhile, Kalita’s signature "ribs" create channels between the filter paper and the dripper, preventing the paper from sticking and ensuring a smooth flow.


Including this dripper in the gashapon set is a nod to Kalita’s roots. It’s the "National Design" that brought coffee into the living room. The miniature even comes with a classic Kalita coffee scoop on a metal chain, making it a super cute accessory. Between the red and white versions, I think I’m partial to the white one!

Note: These three holes are usually 2-3mm in diameter—a precise measurement that dictates a moderate flow rate, perfect for the rich, full-bodied extraction of medium-to-dark roasts.

The "Nokia" of Coffee: Vintage Hand Grinders

Another heavy hitter in this collection is the replica of two iconic hand grinders: the Diamond Mill and the Classic Mill BR. They just ooze vintage vibes.

The Diamond Mill is a beast. The real version features a heavy cast-iron body and a signature wooden drawer. There’s something so romantic about the "functional aesthetics" of that drawer. It’s not just a part of the structure; it’s part of the ritual. Pulling it open to find neatly ground powder and that hit of fresh aroma is pure magic.

Actually, the wooden drawer isn't just for decoration; it’s part of the "original DNA" of 19th-century German "Solida" patent designs. Think of it as the "Nokia" of the coffee world—indestructible and classic. The grinding mechanism is completely separate from the catch bin, which was a huge leap forward from the early days when you had to brush grounds out from the bottom.

In the gashapon version, the handles actually turn and the drawers really open! The level of interactivity is incredible. While these vintage grinders might not match the precision of modern gear, they usually feature an adjustment nut that lets you switch from a coarse French Press grind to a fine pour-over. Plus, because they can be fully disassembled for cleaning, they often produce a more consistent grind than many later, "simplified" models.

The set also includes two versions of the Classic Mill, including the oak-body model. In the early days of specialty coffee, this was the gateway to "freshly ground" happiness for many. Though the fixed central shaft wasn't the stablest—leading to some unevenness and "fines"—modern versions have optimized the craftsmanship. (I even tucked a Kenya PB bean inside the tiny drawer of mine, haha!)

The Perfection is in the Details: Filter Paper & The Copper Kettle

One of the standalone capsules features the Kalita Trapezoid Filter Papers. It’s a three-piece set: a coffee scoop, a single filter paper (they even captured the texture of the crimped edges!), and a box of filters that looks exactly like the real packaging. This kind of attention to detail is why Japanese gashapon are so satisfying to collect. It’s actually my favorite piece in the whole set.

Finally, we have the Classic Kalita Copper Kettle—the brand’s aesthetic condensed into one object. In the world of Kalita, copper is the "holy grail."

Choosing copper wasn't just about the vintage look; it’s about physics. Copper’s thermal conductivity is 401W/m·K—about 16 times that of stainless steel. This means when you pour in hot water, the entire body heats up instantly, keeping the water temperature stable and preventing cold spots. For coffee extraction, stable temperature is key to a balanced flavor.


Because it conducts heat so well, it’s also sensitive to change. If you start with 92°C water, the temperature will naturally drop about 3-4°C during a 3-minute brew. This creates a "gradient extraction"—high heat at the start brings out the aroma and acidity, while the slightly lower temp at the end pulls out the sweetness and body. This "layered" flavor is exactly why veteran brewers are obsessed with copper.

It’s not a "perfect" all-rounder—it loses heat fast, has a specific flow rate, and requires high maintenance—but it remains the dream kettle for countless coffee lovers.

Wednesday, March 11, 2026

The Perfect Milk Temperature for Coffee: How Baristas Steam Milk for Sweeter Lattes

 Many coffee lovers enjoy milk-based coffee drinks. Not only do they offer visually pleasing latte art that delivers a strong emotional appeal, but they also provide a smooth and approachable coffee taste. This combination is one of the main reasons why milk coffee is so popular. However, did you know that the temperature of milk directly affects the sweetness, texture, and flavor balance of coffee? Even small temperature changes of just a few degrees can significantly alter sensory perception. Different types of milk require specific temperature ranges to avoid negatively affecting flavor and mouthfeel.

If you regularly make milk coffee at home, you probably know that when steaming milk, one of the most important skills is learning how to create smooth microfoam while controlling the temperature properly. Doing so enhances the milk’s natural sweetness and improves the overall drinking experience.

Milk is essentially a mixture of water, fats, and proteins. When milk is over-steamed, the proteins collectively behave like a sponge, squeezing out water and ultimately damaging the perception of flavor and texture. Properly heated milk—usually around 60–65°C (140–149°F)—retains a rich, creamy emulsion. At this temperature, the texture becomes velvety smooth, and the flavor tastes sweet and full-bodied. As the specialty coffee industry continues to grow increasingly competitive, precise control of every parameter has become more important than ever. Each small detail is carefully managed to achieve a consistent and predictable coffee flavor. In milk-based coffee drinks, controlling milk temperature is therefore a crucial step.

I remember that during last year’s World Barista Championship (WBC), Malaysian competitor Jason Loo used a blend of three different types of milk. His mixture consisted of 70% milk that had been freeze-distilled (reducing its volume by 30% and removing most of the water), 20% coconut milk, and 10% oat milk. He then steamed this blended milk to 58°C (136°F). This method significantly enhanced the perceived sweetness. After steaming, the milk was quickly cooled using a frozen sphere, which helped highlight clarity in the flavor profile. From this example, we can see how important the choice of milk truly is in milk-based coffee. Temperature is one of the key factors that determines how those flavors are expressed. Whether it is dairy milk or plant-based milk, temperature has a profound impact on both flavor and texture.

The purpose of steaming milk is twofold. First, it allows the milk to integrate well with espresso, enabling latte art. Second, it helps emphasize and amplify the milk’s sweetness. The science behind this is that heating dairy milk makes lactose more soluble and easier to break down, which increases the perception of sweetness. The ideal temperature range for this effect is 55–65°C (131–149°F). Once the temperature exceeds 70°C (158°F), lactose begins to caramelize, which can produce unpleasant flavors.

Plant-based milk should be considered separately because it naturally contains no lactose and has a different composition compared to dairy milk. As a result, its steaming temperature should also be different. Generally speaking, oat milk performs best when steamed to around 60°C (140°F), while soy milk or almond milk typically require less heat, performing well at approximately 55°C (131°F).

Finally, consistency in milk temperature is essential every time you steam milk. Let’s set aside automatic milk frothing machines with built-in temperature control and focus on simple manual steaming techniques. From my personal experience, the most effective method is relying on the sense of touch. Many people prefer inserting a thermometer, and I used to do that as well when making coffee early in the morning. But over time, I found that my hands became familiar enough to judge the temperature accurately.

If you enjoy making coffee at home on a regular basis, reducing reliance on tools and equipment can actually be part of the fun. Learning to feel and understand each step of the coffee-making process is an important skill. Either way, from today onward, remember to pay close attention to milk temperature when preparing milk-based coffee. Milk temperature has evolved from a minor technical detail into a decisive factor that determines the overall quality of the coffee.

Wednesday, November 19, 2025

6 Foods You Should Never Eat with Coffee

 For many people, a rich, aromatic cup of coffee is an essential part of starting the day.

Coffee certainly brings pleasure to your taste buds, but you might not realize that some foods can interfere with its benefits—or even put extra stress on your body—when consumed at the same time. Today, let’s take a look at six foods you should avoid pairing with coffee.

1. Black Fungus (Wood Ear Mushrooms)
Black fungus is a popular health food, rich in iron and often referred to as “meat for vegetarians.” However, drinking coffee while eating black fungus can reduce iron absorption. The tannins in coffee bind with iron to form insoluble compounds, making it harder for your body to absorb this essential nutrient. For those with anemia or anyone needing extra iron, this is not ideal. It’s best to wait at least 2–3 hours after eating black fungus before drinking coffee.

2. Alcoholic Beverages
Both caffeine and alcohol affect the nervous system. Some people believe coffee can “sobering up” after drinking, but caffeine only masks the symptoms temporarily—it doesn’t speed up alcohol metabolism. In fact, it can make you overestimate your alertness, increasing the risk of drinking too much. Consuming coffee and alcohol together also puts extra strain on your heart and liver, which may pose long-term health risks.

3. High-Calcium Foods
Dairy products like milk and cheese are common coffee companions, but heavy coffee consumption can interfere with calcium absorption. Caffeine acts as a diuretic, increasing calcium excretion through urine, while tannins bind to calcium and reduce its bioavailability. If you’re focusing on calcium intake or bone health, it’s best to separate the timing of coffee and high-calcium foods.

4. Seafood
Seafood is rich in high-quality protein and minerals like zinc, making it a favorite for many. However, tannins in coffee can bind with proteins in seafood, forming compounds that are hard to digest. This not only reduces nutrient absorption but may also cause stomach discomfort. If you’re enjoying a seafood meal, wait a while after eating before sipping your coffee.

5. Spicy Foods
Chili peppers, mustard, and other spicy foods naturally stimulate the stomach lining, while caffeine promotes gastric acid secretion. The combination can irritate your stomach even more. Regularly pairing spicy food with coffee may lead to discomfort and, over time, could increase the risk of gastritis. If you have a sensitive stomach, this is a combination to avoid.

6. Certain Medications
Many people take medications with coffee, but this habit can be risky. Caffeine can interact with certain drugs, such as reducing the absorption of antibiotics or intensifying the effects of stimulants. The safest option is always to take medication with plain water.

Knowing which foods don’t pair well with coffee can help you enjoy your cup even more. A simple rule of thumb: drink coffee on its own, at least an hour apart from meals. This not only avoids nutrient conflicts but also lets you fully savor the rich, unique flavor of your coffee.

Caffeine: A Scientific Look at Its Double-Edged Life

 Morning—coffee aroma wakes up a new day.

Afternoon—a cup of milk tea sweeps away the drowsiness.
Late at night—energy drinks keep people going, whether they’re working overtime or gaming.

In our fast-paced modern lives, there’s one substance often called the “gentlest stimulant”—caffeine. Without us noticing, it quietly shapes our daily rhythm. It’s the most widely consumed psychoactive substance in the world, with about 90% of adults taking it in one form or another. Caffeine can boost alertness, but it may also bring health risks. So how do we use this “double-edged sword” wisely? Let’s take a scientific look.

What Exactly Is Caffeine?

Caffeine is a natural alkaloid, chemically known as 1,3,7-trimethylxanthine, and it appears in over 60 plants including coffee beans, tea leaves, cocoa beans, and guarana berries.

In nature, caffeine is a plant’s “secret weapon.” It can paralyze leaf-eating pests, protecting the plant, while its presence in nectar helps attract pollinators—an evolutionary strategy for survival.

Humans have been using caffeine for centuries. As early as the 6th century, Ethiopian goat herders discovered its stimulating effects by chewing coffee cherries. In China, people were already boiling tea during the Han Dynasty (2nd century BCE). Today, caffeine is industrially extracted and widely used in energy drinks, foods, and even medications.

How Does Caffeine Affect Your Body?

Once ingested, caffeine is quickly absorbed in the gastrointestinal tract, metabolized by the liver, and delivered to the brain through the bloodstream.

It acts like a clever “signal disruptor.” By binding to adenosine receptors, it blocks the brain’s fatigue signals. The result? Temporary alertness and a boost in energy.

But the effects vary greatly from person to person. The same cup of coffee may keep one person alert for 5 hours but another for only 2. This mainly depends on genetics, age, and gender.

Caffeine and Medication Interactions

Some studies suggest that coffee or caffeine-containing products may interfere with nutrient and drug absorption or metabolism, though many of these studies are small in scale.

  • Patients taking doxofylline or stimulant medications like stibepranol should avoid all caffeine because of strong interactions.

  • Common prescription drugs such as atomoxetine, bupropion, ciprofloxacin, clozapine, linezolid, lithium, and tizanidine may interact mildly with caffeine. For people who consume moderate caffeine (about 1–2 cups per day), issues are less likely—but heavy caffeine users need extra caution.

For those taking alendronate or iron supplements:

  • Avoid coffee for at least 2 hours after taking alendronate.

  • When taking iron, wait 1–2 hours before drinking coffee to avoid reduced absorption.

The Benefits of Caffeine: What Does the Science Say?

Lower All-Cause Mortality

Several observational studies have found an association between drinking coffee or tea and lower all-cause mortality. However, not all studies agree—possibly because healthier individuals are more likely to consume caffeinated beverages.

Short-Term Benefits

Caffeinated beverages can:

  • Improve alertness

  • Boost reaction time

  • Enhance physical performance

Moderate caffeine intake can also alleviate discomfort from jet lag or lack of sleep.

Potential Long-Term Benefits

Some studies suggest caffeine may help reduce the risk of:

  • Parkinson’s disease

  • Alzheimer’s disease

  • Alcohol-related cirrhosis

  • Gout

Both regular and decaf coffee have been associated with lower type 2 diabetes risk, though causality remains unclear.

Risks of Excessive Intake: What to Watch Out For

Short-Term Side Effects

Consuming too much caffeine may lead to:

  • Headaches

  • Anxiety

  • Tremors

  • Insomnia

People who rarely consume caffeine tend to be more sensitive to these effects.

Health Concerns

Although some research links coffee to certain cancer risks, there is no conclusive evidence. Caffeine may also be associated with generalized anxiety disorder and substance misuse, though causality isn’t established.

Caffeine Withdrawal

While caffeine “addiction” is still debated, caffeine withdrawal is a recognized clinical condition—its most common symptom being headaches.

How to Consume Caffeine Safely

Choose Healthy Sources

Black coffee and tea are generally healthier options than sugary energy drinks.

Stay Within Safe Limits

  • Healthy adults: ≤400 mg/day (about 4 cups of drip coffee)

  • Children/teens: ≤2.5 mg/kg

  • Pregnant women: ≤200 mg/day

Avoid Mixing with Alcohol

Combining caffeine with alcohol can mask drunkenness and increase risky behaviors.

Special Populations

  • Children and teens should limit energy drinks.

  • Pregnant women should monitor caffeine intake.

  • Anyone taking medication should consult a doctor to avoid interactions.

If you’re unsure whether your medication conflicts with caffeine, skip the coffee while taking the drug. Better safe than sorry.

Conclusion: Balance Is Key

Caffeine isn’t inherently harmful—the key lies in moderation and individual sensitivity. Enjoy the alertness it brings, but pay attention to your body’s signals. If you experience palpitations or insomnia, it’s time to cut back. When necessary, seek professional guidance.

And remember: Good sleep, consistent routines, and a balanced diet are the true foundations of health. Caffeine can help, but it shouldn’t be the crutch holding your life together.

Saturday, October 18, 2025

Brazilians Got Their Coffee Because of an Affair

 Coffee is originally from Ethiopia, with its use documented only in the 15th century. It is said that Sufi monks in Yemen were the first to drink coffee, which helped them stay awake during their night prayers. 

In the early 15th century, coffee spread to Mecca and subsequently throughout the Middle East. Travelers later brought coffee to Europe. In the early 17th century, some Catholics suspected coffee was the devil's drink and urged Pope Clement VIII to ban it. However, the Pope tasted the drink himself and, to their surprise, gave it his blessing. Coffee then gradually became popular in Europe.

 

In his book, *The Travels of Four Englishmen and a Preacher into Africa, Asia, Troy, Bythinia, Thracia, and to the Blacke Sea* (1612), William Biddulph described his first impression of tasting coffee in Turkey:

"The most common drink is one called Coffa, a black drink made from a paste called Coaua, which resembles peas. The preparation involves grinding the beans and boiling them with water, and the locals enjoy it as hot as possible. Their lives are simple and crude, and they find drinking this beverage enjoyable, believing it aids the digestion of the herbs and raw meat they eat." 

Italian explorer Pietro Della Valle elaborated on Turkish coffee in his work, *Travels in Persia* (published in English in 1658):

"The Turks have a black drink, which is refreshing in the summer and warming in the winter... I remember this drink is made from the grains or fruit of a certain tree that grows in the Arab region near Mecca. The fruit is called Cahue, which is also the name of the drink. The fruit used to make Cahue is oval-shaped and about the size of a medium olive. When preparing the drink, the locals sometimes use the soft peel of the fruit, and sometimes they use only the kernel, which is like a bean. They believe the two drinks, one made from the peel and the other from the kernel, have different propertiesone being warm and the other cool. But I forget whether the refreshing drink is made from the peel or the kernel." 

By the end of the 17th century, major European cities had thousands of coffee houses, and public demand for coffee was increasing daily. The Arabs attempted to monopolize coffee, but the Dutch stole seedlings, took them to Jakarta, and established coffee farms. In 1714, the Dutch presented some coffee tree seedlings to King Louis XIV of France, who planted them in the Royal Botanical Garden in Paris. Later, a naval officer named Gabriel de Clieu secretly clipped some coffee tree cuttings from the garden and transported them to the French Caribbean island of Martinique, where coffee flourished. Fifty years later, the number of trees had grown to 18 million. These trees were later taken to other parts of the Caribbean and the New World. 

As for how coffee reached Brazil, there is an anecdote. It is said that in 1727, Francisco de Mello Palheta, a Portuguese official from Brazil, was dispatched to French Guiana in an attempt to negotiate for coffee seedlings to take back to Brazil, but he was firmly rejected. However, Palheta's handsome appearance captivated the French Governor's wife, and the two began an affair. As a farewell gift, the Governor's wife gave him a bouquet of flowers, secretly hiding coffee seeds within them. This is how coffee was successfully introduced to Brazil.