Coffee is not one plant but two distinct species, each with its own origin story, its own character, and its own place in the global cup, and the difference between them shapes everything about the modern coffee trade.
Coffea arabica, the elder and the nobler of the pair, evolved in the highland forests of Kaffa and Sidama in southwestern Ethiopia, the only place on earth where the species is truly indigenous, and the singular wild origin of virtually all the world's specialty coffee. There the Oromo communities, who have lived amongst the Kaffa forests for millennia, were chewing the bright red cherries whole and brewing the dried husks into a spiced infusion for centuries before anyone thought to roast the bean. C. arabica is a naturally occurring hybrid, descended from a chance cross between two other wild coffees, and it is uniquely complex in flavour, lower in caffeine than its rival, and acutely sensitive to altitude, temperature, rainfall, and disease, which is why the finest Arabica grows only on cool tropical highlands. The first documented cultivation of roasted coffee, as opposed to the chewing and husk-brewing of the Ethiopian forest, occurred in Yemen in the fifteenth century, using Arabica beans carried north across the Red Sea from the Ethiopian highlands.
Coffea canephora, sold the world over as Robusta, is a separate species altogether, native not to the cool highlands but to the hot, humid, lowland equatorial forests of West and Central Africa: the Congo Basin, Cameroon, Gabon, the Ivory Coast, and Uganda. Where Arabica is delicate, C. canephora is hardy and vigorous, thriving at low altitudes, resisting the fungal diseases that devastate Arabica plantations, and producing nearly twice the caffeine. It was formally classified by the Belgian botanist Émile Laurent from specimens collected in the Congo Free State in 1898, though it had grown wild and been used by Central and West African communities for centuries before European science gave it a name. Robusta's resilience and intensity make it indispensable to the modern industry: it is the backbone of virtually all instant coffee worldwide, and it provides the body, the thick crema, and the caffeine punch essential to a good Italian espresso blend. Between the two species, the aristocratic highland Arabica and the rugged lowland Robusta, lies the whole spectrum of the world's coffee.
Arabica's journey began in the Kaffa forests of Ethiopia and crossed the Red Sea into Yemen, where Sufi mystics first roasted and brewed the bean to sustain their night-long devotions, and where the port of Mocha became, for over a century, the sole gateway through which coffee reached the wider world. From Yemen the drink followed the pilgrim and the incense roads of Arabia, becoming the foundation of the world's first café culture in Mecca, Cairo, and Istanbul, where the coffeehouse emerged as a wholly new kind of public space, a place to argue politics, play chess, and listen to music, so unsettling to authority that it was repeatedly, and always vainly, banned. The Yemenis guarded their monopoly jealously, scalding or boiling every exported bean to prevent it germinating, but the secret could not be kept forever.
Ottoman merchants carried coffee to Venice in 1615, and within a few decades every European capital had its coffeehouses, the so-called penny universities of London and the literary cafés of Paris and Vienna, which became the intellectual engines of the Enlightenment. The Dutch broke the Arab monopoly at last: the traders of the Vereenigde Oostindische Compagnie smuggled living Coffea arabica seedlings out of the Arab world by way of Malabar in India and planted them on Java in 1696, founding the world's first great colonial coffee plantations and making 'Java' a synonym for the drink itself. A single French naval officer, Gabriel de Clieu, carried one precious seedling across the Atlantic to Martinique in 1723, nursing it through drought and sabotage on the voyage; from that one plant descended virtually all the coffee of the Caribbean and the Americas. Brazil, seeded from a smuggled bouquet in 1727, became by the 1840s and remains today the world's largest producer.
Robusta's global journey was a later and a more colonial affair, driven by French and Belgian expansion in Africa and Asia. The French colonial administration introduced C. canephora from the Congo Basin to Indochina in the late nineteenth century, and Vietnam's Central Highlands, too low and too warm for the fastidious Arabica, proved ideal for the rugged Robusta, transforming Vietnam into the world's second-largest coffee producer and the heart of one of its most distinctive coffee cultures. Robusta also came to dominate production across the Ivory Coast, Uganda, and Cameroon, and it now constitutes roughly 40% of all the coffee grown on earth, the unseen foundation of the world's instant coffee and the backbone of its espresso.
The twentieth century added a final chapter, written in the southern hemisphere. Italian espresso culture, transplanted to Melbourne by the great wave of postwar Italian and Greek immigration, took root and flourished into a café standard more technically exacting than most of Europe, redefining global quality benchmarks, pioneering the silky microfoam of the milk jug, and giving the world the flat white. From a wild shrub in an Ethiopian forest to the espresso bars of Melbourne, coffee had encircled the globe.
Coffee is one of the most valuable agricultural commodities on earth and one of the two most widely consumed beverages on the planet, a daily ritual for billions of people across every continent and nearly every culture. It is grown in a broad equatorial belt, the so-called Bean Belt that girdles the globe between the tropics, by smallholders and great estates alike, and its trade sustains the economies of dozens of nations in Latin America, Africa, and Asia. Brazil remains the largest producer by a wide margin, followed by Vietnam, Colombia, Indonesia, and Ethiopia, and the two species divide the market between them: the highland Arabica, prized for its complexity and acidity, commands the specialty and premium trade, whilst the lowland Robusta, cheaper, stronger, and more bitter, fills the instant tins and lends body to the espresso blend.
What makes coffee extraordinary is the sheer diversity of the cultures that have made it their own, each evolving a distinct ritual and preparation. The same bean is roasted over charcoal and brewed thrice from a clay jebena in the Ethiopian bunna ceremony, pounded fine and boiled in a cezve for Turkish coffee, pulled as a short, fierce shot from a polished machine in an Italian bar, dripped slowly through a phin filter over sweetened condensed milk in Vietnam, brewed in an earthenware pot with cinnamon and raw sugar as café de olla in Mexico, and taken with a cardamom bun during the sacrosanct Swedish coffee break of fika. Coffee built the coffeehouse, that uniquely modern institution of sociability and debate that nourished the Enlightenment and the age of revolution, and it remains the lubricant of work, commerce, and conversation the world over.
Beyond the cup, coffee permeates the wider kitchen, flavouring the tiramisù of Italy, the affogato in which a scoop of ice cream is drowned in hot espresso, and countless cakes, sweets, and liqueurs. From the bunna ceremony of its Ethiopian birthplace to the third-wave roasteries of the modern city, no beverage save tea is so universally loved, and none has so profoundly shaped the rhythms of human society.
Historical Journey of Coffee
Kaffa Highlands, Ethiopia — c. 850 CE
Coffea arabica grew wild in the highland forests of Kaffa and Sidama in southwestern Ethiopia, the only place on earth where the species is truly indigenous, which made these Ethiopian highlands the singular origin point of virtually all the world's specialty coffee. The Oromo people, whose communities have lived in the Kaffa region for millennia, were the first to recognise the energising properties of the coffee cherry, chewing the bright berries whole, pounding them with animal fat into a portable ration carried on long journeys, and brewing the dried husks into a spiced drink long before the technique of roasting the bean was discovered. The legend of Kaldi, the shepherd who noticed his goats grow frisky and sleepless after eating the red cherries of an unfamiliar shrub, distilled this moment of discovery into a story still told in Ethiopian coffee houses today. Above all, the Ethiopians gave the world the bunna ceremony, their unhurried ritual of hospitality in which green beans are roasted over charcoal before the guests, ground by hand, and brewed three times in succession in a round-bellied clay jebena pot to yield three cups of diminishing strength, the whole performance accompanied by incense, popcorn, and conversation; it is one of the world's oldest continuously practised food rituals, scarcely altered in its essentials for centuries. Ethiopia remained the world's fifth-largest coffee producer and the only country where C. arabica still grows wild in primary forest, lending its coffees a complex, fruit-forward, floral character that contemporary roasters trace directly to this wild highland cradle.
Aden & Mocha, Yemen — c. 1450
It was in Yemen, in the middle of the fifteenth century, that coffee first became the roasted, brewed drink we would recognise today. Sufi mystics of the Shadhili order in Aden, seeking to remain wakeful and alert through their long night devotions, took the beans that had crossed the Red Sea from the Ethiopian highlands, roasted them, ground them, and brewed them into a dark, bitter, stimulating infusion, and from the cloister the habit spread swiftly to the wider population. The Red Sea port of Mocha (Al-Mukha) became the world's primary coffee export hub, so dominant that its name still clings to a whole style of the drink, and for over a century Yemen held a near-total monopoly on the global coffee trade. The Yemenis guarded that monopoly with great care, permitting the export of the precious bean only after it had been scalded or boiled so that it could not germinate and be cultivated elsewhere, a prohibition that held until pilgrims and smugglers at last carried fertile seeds away. The characteristic Yemeni preparation was, and remains, qishr, a fragrant drink brewed not from the bean but from the dried coffee husks, simmered with ginger and cinnamon, a frugal and aromatic survival of the older Ethiopian habit of brewing the husk rather than the seed, still drunk in the highlands of Yemen today.
Mecca, Arabia — c. 1511
Coffee spread rapidly through the holy cities of Mecca and Medina, carried by the pilgrims who passed through Yemen on their way to the Hajj and who took the new drink home to every corner of the Muslim world. In Mecca the first qahwakhaneh, or coffeehouses, opened their doors, and they were revolutionary spaces: places where men of every rank gathered to debate politics, recite poetry, play chess, and listen to music, free for once of the supervision of the mosque and the palace. This very freedom alarmed the authorities, and in 1511 the Governor of Mecca, Kha'ir Beg, convened a council of jurists and briefly banned coffee as a dangerous intoxicant akin to wine; the prohibition was overturned within months by order of the Ottoman Sultan in Cairo, and the precedent was set for a long history of futile bans. Coffee became inseparable from the hospitality culture of Arabia, where to refuse a guest a cup was a grave discourtesy. Its courtly expression survives as Gulf kahwa, the pale, lightly roasted Arabian coffee brewed with a generous hand of green cardamom and often a thread of saffron, poured from a long-spouted dallah pot into tiny handleless cups and served with dates, the very emblem of Arabian welcome.
Istanbul, Ottoman Empire — c. 1555
In 1555 two Syrian merchants, remembered as Shams of Damascus and Hakim of Aleppo, opened Constantinople's first kahvehane near the Grand Bazaar, and the institution took the Ottoman capital by storm. Within a few decades Istanbul had over six hundred coffeehouses, known admiringly as 'schools of the wise' (mekteb-i irfan), where the literate and the idle alike gathered to talk, to play backgammon, and to hear the storytellers and poets. The Ottoman court adopted coffee as a courtly drink and surrounded it with an elaborate ceremony, appointing a chief coffee-maker to the Sultan and serving the brew with great formality. Yet the coffeehouse, with its mingling of classes and its loose, seditious talk, troubled the throne as much as it had troubled Mecca: Sultan Murad IV banned coffee repeatedly between 1623 and 1640, on pain of death, and is said to have prowled the city in disguise to catch offenders, but the bans failed as all such bans have failed. The lasting Ottoman gift was a method: the brewing of very finely ground coffee, unfiltered, in a small long-handled pot called a cezve, simmered to a foam and poured grounds and all, sometimes sweetened, sometimes flavoured with cardamom. This Turkish coffee (Türk kahvesi) defined the coffee culture of the whole Ottoman world and beyond, across Eastern Europe, North Africa, and the Middle East, and the residue left in the cup is still read for fortunes to this day.
Baba Budan Hills, Karnataka, India — c. 1600
The Sufi pilgrim Baba Budan, returning from the Hajj in Mecca early in the seventeenth century, is said to have carried away seven fertile coffee beans strapped against his belly or hidden in his beard, defying the strict Yemeni ban on the export of viable seed; seven being a sacred number in Islam, the act was held to be a pious one rather than mere smuggling. He planted these beans in the cool, misty Chandragiri Hills of Mysore in southwestern India, and from them grew the first coffee cultivated outside Africa and Arabia. The region, now the Chikmagalur district of Karnataka, still produces some of the world's finest shade-grown Arabica, and the hills themselves bear Baba Budan's name. Over the following centuries South India developed a coffee culture entirely its own, distinct from the Turkish brew of the north and west: the South Indian filter coffee, or kaapi, is made by trickling hot water slowly through finely ground, chicory-blended coffee in a two-tiered steel filter to produce a strong, dark decoction, which is then mixed with hot frothy milk and sugar and poured back and forth between a tumbler and a wide-mouthed dabarah, raised high to cool it and raise a foam, the everyday morning ritual of millions of households across Tamil Nadu and Karnataka.
Venice, Italy — c. 1615
Venetian merchants, trading as they did with the Ottoman Levant, brought coffee to Europe for the first time around 1615, and the dark, exotic drink at first provoked suspicion as much as delight. The clergy, the story goes, petitioned Pope Clement VIII to condemn this 'Muslim drink' as a thing of the infidel, but the Pope, having tasted it for himself, pronounced it so delightful that it would be a pity to leave it to the unbelievers, and gave it instead his blessing, clearing the way for its acceptance in Christian Europe. Italy made coffee wholly its own, and over the following centuries the Italian taste evolved towards the small, intense, swiftly pulled shot of espresso: Angelo Moriondo patented an early steam-driven brewing machine in Turin in 1884, the ancestor of the modern espresso machine that would define twentieth-century coffee. The great Caffè Florian, opened on the Piazza San Marco in Venice in 1720 and still serving today, anchors this long history. From the Italian bar came a whole grammar of coffee that the world adopted: the espresso itself, the milk-crowned cappuccino, the macchiato, and the affogato al caffè, in which a scoop of vanilla gelato is drowned beneath a hot shot of espresso, as well as the coffee-soaked sponge of tiramisù, the layered dessert of mascarpone, eggs, and espresso that became one of Italy's most beloved sweets.
Vienna, Austria — c. 1683
When the Ottoman army that had besieged Vienna in 1683 was routed and driven off, it left behind in its abandoned camp, amongst the tents and the gunpowder, sacks of green coffee beans that the Viennese scarcely knew what to make of. Legend credits Georg Franz Kolschitzky, an interpreter who had lived amongst the Turks, with recognising the beans for what they were and opening one of Vienna's first coffeehouses, where he is said to have tamed the bitter Ottoman brew for European palates by straining out the grounds and softening it with honey and milk. Whatever the truth of the tale, Vienna made of the coffeehouse a unique and enduring institution: the Kaffeehaus, a warm and unhurried public drawing room where one might read the newspapers laid out on their wooden rods, play chess or billiards, write, argue, and linger for hours over a single cup served always with a glass of water. The Viennese coffeehouse tradition is now inscribed by UNESCO as Intangible Cultural Heritage. Out of it came a rich vocabulary of preparations: the Einspänner topped with whipped cream, the Verlängerter lengthened with hot water, and above all the Wiener Melange, the gentle Viennese blend of espresso-strength coffee and steamed, foamed milk that remains the classic order of the Vienna café.
Paris, France — c. 1686
In 1686 the Sicilian Francesco Procopio dei Coltelli opened the Café de Procope in Paris, fitting it out with mirrors, marble tables, and chandeliers in a style that set the pattern for the elegant European café; it is the world's oldest surviving coffeehouse, still operating today on the Rue de l'Ancienne Comédie. The Procope and its many imitators became the meeting grounds of the French Enlightenment and the Revolution that followed, frequented by Voltaire, who was said to drink dozens of cups a day, and by Rousseau, Diderot, Robespierre, and the young Napoléon Bonaparte, who is reputed to have left his hat as security when he could not pay his bill. French café culture enshrined above all the right to linger, to occupy a table for hours over a single cup and a saucer, watching the street go by, and made of the pavement café a permanent feature of Parisian life. The everyday French preparation was the café au lait, strong coffee lengthened with a generous quantity of hot milk and drunk from a wide bowl at breakfast, often with bread to dip into it. From France the drink and the plant alike spread outward: in the 1720s France carried coffee to its Caribbean and South American colonies, initiating the great plantation era that would transform global production and bind coffee, tragically, to the history of slavery in the Americas.
Batavia (Jakarta), Java, Indonesia — c. 1696
The Dutch broke the long Arab monopoly at last. Having obtained living Coffea arabica seedlings smuggled out of the Arab world by way of Malabar on the Indian coast, the traders of the Vereenigde Oostindische Compagnie, the Dutch East India Company, established the world's first large-scale colonial coffee plantations on the volcanic soils of Java around 1696, worked under the forced cultivation system that would make the island synonymous with coffee. By about 1720 the Dutch East Indies had become the world's primary coffee supplier, and 'java' passed into the languages of the world as a synonym for the drink itself. From Java the Dutch carried the plant onward to their colony of Suriname on the South American mainland and into the Caribbean, helping to seed the vast Atlantic plantation system. Indonesia developed a robust coffee culture of its own, expressed most characteristically in kopi tubruk, the simple, powerful brew in which coarsely ground coffee is boiled with sugar and drunk unfiltered, grounds and all, in the manner the Dutch are thought to have borrowed in turn from Turkish practice; the archipelago also produced the notorious kopi luwak, the world's most expensive coffee, made from beans passed through the digestive tract of the civet.
Martinique, French Antilles — c. 1723
The French naval officer Gabriel de Clieu carried a single coffee seedling, obtained from a plant in the Jardin du Roi in Paris that itself descended from the Dutch stock, across the Atlantic to the island of Martinique in 1723, and the voyage became one of the great legends of coffee. According to de Clieu's own account, a jealous fellow passenger tried to wrench the precious seedling from him and tore off a branch, and when the ship was becalmed and water rationed, he shared his own meagre allowance with the plant to keep it alive. The seedling survived, was planted on Martinique under a guard of thorns, and flourished so prodigiously that within some fifty years the island reckoned its coffee trees in the millions. From this one plant, the descendants spread to Guadeloupe, to Saint-Domingue (later Haiti), and onward to the South American mainland, so that de Clieu's seedling became the botanical ancestor of virtually all the coffee grown across the Americas. The Caribbean expressed its coffee in the créole manner as café créole, the strong island brew laced with the local rhum agricole distilled from cane juice and warmed with spice, a fortifying drink of the plantation highlands. Without this single, much-travelled seedling, the entire coffee industry of the Western Hemisphere might never have come into being.
Belém, Pará, Brazil — c. 1727
Brazil acquired its first coffee by an act of charming subterfuge. In 1727 the Portuguese officer Francisco de Melo Palheta was sent to French Guiana, ostensibly to mediate a border dispute, but in truth to obtain the jealously guarded coffee seed; the French refused to part with it, and so, the story runs, Palheta won the affections of the Governor's wife, who at his departure presented him with a farewell bouquet in which she had concealed fertile coffee seeds and cuttings. From these beginnings in the northern province of Pará, coffee spread south and inland over the following century to Minas Gerais, Rio de Janeiro, and above all the rich red earth of São Paulo, where conditions proved ideal. By the 1840s Brazil had become the world's largest producer, a position it has held without interruption ever since, supplying roughly a third of all the coffee on earth. The great São Paulo coffee boom of the nineteenth century financed the country's modernisation and drew vast waves of immigrants from Italy, Japan, and elsewhere to work the plantations. At the heart of Brazilian daily life sits the cafézinho, the 'little coffee', strong, very sweet, and served scalding hot in a tiny cup, offered as a gesture of welcome in every home, shop, and office across the country.
Blue Mountains, Jamaica — c. 1728
In 1728 Sir Nicholas Lawes, the Governor of Jamaica, received coffee seedlings sent from Martinique, descendants of de Clieu's celebrated plant, and established the island's first coffee cultivation. The seedlings found their ideal home in the Blue Mountains, the range that rises behind Kingston to over 2,250 metres, where the volcanic basalt soil, the persistent cloud cover, the cool temperatures, the steep slopes, and the clear mountain water combined to produce coffee of exceptional quality. Jamaica Blue Mountain became, in time, one of the most coveted and expensive coffees in the world, prized for its smooth, bright, perfectly balanced cup, its clean sweetness, and its almost complete absence of bitterness, and the name was protected and guarded against imitation. So great is the esteem in which it is held in Japan that around four-fifths of the entire Blue Mountain crop has long been bought up by Japanese importers. In the highland farming communities that grow it, the traditional drink is coffee grog, Blue Mountain coffee fortified with the island's dark rum and scented with allspice (the Jamaican pimento), a warming cup against the chill and the damp of the mountain mornings.
Stockholm, Sweden — c. 1746
Coffee reached Scandinavia in the early eighteenth century and embedded itself in the culture with remarkable speed and tenacity, despite the determined hostility of the Swedish crown, which banned the drink no fewer than five times between 1746 and 1817, taxing it, confiscating cups and saucers, and treating coffee-drinking as a vice. The most celebrated episode of this campaign was the experiment commissioned by King Gustav III, who, convinced that coffee was a slow poison, ordered that a condemned murderer drink three pots of coffee a day for life whilst another drank tea, the better to prove its dangers; the experiment outlasted everyone, for the two physicians appointed to observe it died first, then the king himself was assassinated, and the tea-drinker died before the coffee-drinker, vindicating the bean. Sweden today ranks amongst the very highest consumers of coffee per head in the world. At the centre of Swedish life sits the institution of fika, the cherished daily pause for coffee and something sweet, often a cardamom-scented bun (kardemummabulle), taken with friends or colleagues; far more than a coffee break, fika is a social ritual enshrined in the rhythm of the Swedish working day and home alike.
Antigua Valley, Guatemala — c. 1773
Jesuit missionaries are thought to have introduced coffee to Guatemala around the middle of the eighteenth century, but serious cultivation accelerated after the catastrophic earthquake of 1773, which destroyed the colonial capital of Santiago de los Caballeros (the city now known as Antigua) and forced a reshaping of the regional economy that turned increasingly to coffee. The fertile volcanic highlands around Antigua, cradled by three great volcanoes whose mineral-rich ash continually replenishes the soil at altitudes around 1,500 metres, proved ideal for Arabica. Guatemalan coffee developed a distinctive and prized profile: a medium body, a bright, clean acidity, and layered notes of dark chocolate, caramel, and gentle spice that made Antigua one of the world's most recognised single-origin growing regions. The enduring everyday preparation of the region is café de olla, coffee brewed in a traditional unglazed earthenware pot (the olla de barro that lends the drink its name and a faint earthy savour) together with a stick of cinnamon and a lump of raw, dark piloncillo sugar pressed from unrefined cane, a sweet and spiced cup poured at the close of a meal or against the cool of the highland evening.
Kona Coast, Hawaiʻi, USA — c. 1828
The missionary Reverend Samuel Ruggles brought Arabica coffee cuttings from Brazil to the Kona district of the island of Hawaiʻi in 1828, planting them as ornamentals before their value as a crop was recognised. The volcanic slopes of Mauna Loa and Hualālai, at elevations between roughly 600 and 900 metres, proved almost perfectly suited to the plant: the young, mineral-rich basalt soil, the warm sunny mornings, and the trademark blanket of afternoon cloud known locally as the 'Kona snow', which shades the trees through the heat of the day, together create a terroir found nowhere else. Genuine one-hundred-per-cent Kona coffee, smooth, low in acid, and carrying notes of brown butter, hazelnut, and tropical fruit, ranks amongst the most expensive coffees in the world, and its name is protected against the many blends that borrow it. The narrow Kona coffee belt, some thirty miles long, produces only a few thousand tonnes a year, much of it from small family farms, many established by Japanese immigrant labourers who left the sugar plantations to grow coffee. Hawaiʻi remains the only state of the United States to produce coffee commercially, and its singular volcanic origin yields a cup unlike any other.
Bogotá, Colombia — c. 1835
Over the course of the nineteenth century coffee cultivation spread through the region that would come to be called Colombia's Eje Cafetero, the Coffee Triangle, across the steep mountain slopes of Antioquia, Caldas, Risaralda, and Quindío at altitudes between roughly 1,400 and 2,000 metres. The combination of high altitude, an equatorial climate that allowed harvesting nearly year-round, and rich volcanic soil produced Colombia's signature washed Arabica, a bright, balanced, clean, mild-acid coffee that became a global benchmark for premium quality, much of it grown by smallholders on small family fincas and processed by the wet method that lends it its clarity. The cooperative marketing of this coffee gave the world the figure of Juan Valdez, the fictional poncho-clad farmer with his mule, created for an advertising campaign in 1958, who became one of the most recognisable brands in the history of any commodity and a symbol of the Colombian nation itself. The democratic, everyday drink of Colombia is the tinto, a small cup of simple, sweet black coffee carried through the streets in thermos flasks by vendors and offered freely in homes and offices, the constant companion of Colombian daily life from the city to the coffee farm.
Hanoi, Vietnam — c. 1857
French Jesuit missionaries introduced Arabica coffee to Vietnam in 1857, and under French colonial rule plantations spread through the cool Central Highlands around Đà Lạt and Buôn Ma Thuột, the latter of which became the heart of the country's coffee industry. From the slow phin drip filter, the small perforated metal apparatus that sits atop the glass and drips strong, dark coffee at its own unhurried pace, the Vietnamese built a coffee culture wholly their own. Because fresh milk was scarce in the tropical climate, they sweetened and softened the bitter brew with a thick layer of sweetened condensed milk, producing cà phê sữa đá, iced coffee over condensed milk, the national drink. Out of the same scarcity, during a wartime shortage of milk, the cafés of Hanoi invented cà phê trứng, egg coffee, in which a froth of egg yolk whipped with sugar and condensed milk is poured over hot coffee to make a rich, custard-like cup eaten almost with a spoon. Today Vietnam is the world's second-largest coffee producer and by far the largest grower of Robusta, the rugged species that thrives in its warm highlands. Vietnamese coffee culture, sipped slowly from low plastic stools on the crowded pavements of every city, is amongst the most distinctive on earth.
Congo Basin, Central Africa — c. 1898
Coffea canephora, the species sold the world over as Robusta, grew wild across a vast belt of equatorial West and Central Africa: the Congo Basin, Cameroon, Gabon, the Ivory Coast, and Uganda. Hardy and vigorous where Arabica is delicate, it thrived at the low, hot altitudes that defeat its highland cousin, resisted the fungal diseases (above all coffee leaf rust) that devastated Arabica plantations, and produced nearly double the caffeine. The Belgian botanist Émile Laurent formally classified the species from specimens collected in the Uele River region of the Congo Free State in 1898, though the plant and its stimulating properties had been known to and used by Central and West African communities for centuries before any European gave it a name. Recognising its toughness and yield, the French colonial administration carried C. canephora from the Congo Basin to Indochina, where it transformed Vietnam's Central Highlands into one of the world's great coffee regions. Robusta came to constitute approximately 40% of all global coffee production: it is the foundation of virtually all instant coffee, and it lends the body and the thick crema essential to a proper Italian espresso blend. In its African homeland it is still drunk in homely, vigorous preparations such as Ugandan ginger coffee, the strong local Robusta boiled up with fresh ginger and sugar. Without this rugged equatorial species, the global coffee industry as it exists today could not function.
Melbourne, Australia — c. 1950s
The great wave of Italian and Greek immigration that reached Australia after the Second World War brought espresso culture to Melbourne, as newcomers from Milan, Naples, and the Greek islands imported the gleaming machines and the bar rituals of the European café and opened the espresso bars of Lygon Street and the inner suburbs. Over the following decades the transplanted culture flourished and refined itself, until by the 1980s and 1990s Melbourne possessed a café scene more technically exacting than most of Europe, with baristas pioneering the silky microfoam milk pour and building drinks around the short, concentrated ristretto shot. It was here, and contested with Auckland and Sydney, that the flat white was developed, a double ristretto crowned with velvety microfoam in a smaller cup than the cappuccino, so that the espresso shines through the milk; it has since travelled back out across the world. The sophistication of the Australian palate became a point of pride and a commercial reality: when the American chain Starbucks expanded aggressively into Australia from 2000, it floundered against the entrenched independent café culture, and the great majority of its stores had closed by 2008, an unusual reverse for the company and a measure of how completely Melbourne had made coffee its own.
