The History of Sugar: From Precious Spice to Global Commodity

In 1747 Berlin, chemist Andreas Sigismund Marggraf of the Royal Prussian Academy of Sciences examined crystals extracted from sugar beet root under a microscope. The substance was chemically identical to the sugar derived from sugarcane.^[1] At the time, it seemed like little more than laboratory curiosity. Sixty years later, when Europe was shaken by war and Caribbean supplies were cut off, that discovery became the starting point for a complete rewriting of sugar’s history.

Sugar has a remarkable way of turning history at unexpected moments. From the instant a New Guinea farmer first chewed a sweet grass stalk, through the era when hundreds of thousands of people were enslaved to work the Caribbean fields, to the present day when nutritionists argue over bags of sugar — sugar has always been more than a mere ingredient. It is a substance that concentrates human desire, power, and the price paid for both.

The Sweet Grass of New Guinea: Origins of Sugarcane

Both archaeological evidence and genomic analysis point to New Guinea as the oldest known home of sugarcane (Saccharum officinarum). Around 8,000 BCE, Papuan farmers in the highlands of New Guinea began selectively cultivating the wild species Saccharum robustum.^[2] In those early days, people chewed the raw stalks to extract the sweetness, and the plant was also used as animal fodder.

Sugarcane spread westward into Southeast Asia and India from around 6,000 BCE, carried along by the migrations of Austronesian peoples.^[2] On reaching India, the cane interbred with another local wild species, Saccharum spontaneum, giving rise to new varieties. But it was India that first developed the technology to transform sugarcane from a plant simply chewed for sweetness into a crystallized sugar.

Around 500 BCE in the Bengal region of northeastern India, records appear of a method for boiling sugarcane juice to produce crystallized sugar called khand. The technique involved heating the juice, then placing wet reeds over it at the moment crystallization began to wash away the molasses, yielding refined sugar crystals. The Pali Canon from the same period — specifically the Bhesajjakkhandhaka (Chapter on Medicine) in the Theravāda Vinaya Piṭaka — classifies phāṇita, a substance derived from sugarcane, as one of five medicines permitted for monks, alongside ghee, butter, oil, and honey.^[3] This is primary-source evidence that sugar processing had already reached an everyday level by the fifth century BCE. The Sanskrit word śarkarā — meaning granular lumps like gravel or sand — is the common ancestor of the English “sugar,” the Arabic “sukkar,” and the French “sucre.”

In 647 CE, Emperor Taizong of Tang dispatched twenty-two emissaries led by Li Yibiao and Wang Xuance to the Kingdom of Magadha in India to learn sugar-making techniques firsthand.^[16] King Harsha and monks from the Mahabodhi Monastery even sent sugar cultivators to China, who taught residents of Yuezhou how to produce sugar from sugarcane.^[16] The pathway by which sugar would reach East Asia had already been opened more than fourteen hundred years ago.

The Arab World’s Refining Expertise: “Wherever They Went, They Brought Sugar”

In the seventh century CE, when the Islamic Caliphate conquered Persia, the Arabs encountered sugarcane cultivation and sugar refining techniques for the first time. As historians have recorded, medieval Arabs “wherever they went, brought sugar with them.”^[4] Iraq, Egypt, Sicily, the Iberian Peninsula — wherever the Islamic world expanded between the eighth and tenth centuries, sugarcane plantations and sugar workshops appeared.

Arab merchants and scholars greatly advanced the technology of sugar refining. The methods developed in this period included multi-stage purification to produce white sugar of far greater purity, and systematic ways of blending sugar with rose water or spices for medicinal and culinary use.^[4] In this process sugar functioned simultaneously as a food ingredient and a medicine. Ninth-century Arab medical texts describe sugar as aiding digestion, reducing fever, and soothing coughs.

As sugar spread from the Arab world into the Mediterranean, medieval Europeans encountered the substance for the first time. The Crusades, waged from the eleventh through the thirteenth century, gave Europeans direct experience of sugarcane plantations and sugar markets in the Levant. Contemporary accounts record that Crusader soldiers tasting sugar for the first time called it “sweet salt.”^[4]

In the early twelfth century the Republic of Venice established sugarcane plantations directly in what is now Lebanon and began exporting sugar to Europe.^[4] By the thirteenth century Venice had become the centre of the European sugar trade, importing raw sugar from the Middle East, refining it, and distributing it across the continent. In this period, sugar in Europe was sold in apothecary shops — a precious medicinal substance displayed on the same shelves as pepper and cinnamon.

The Age of Exploration and the Caribbean: Birth of a Sugar Empire

In the late fifteenth century Portugal expanded sugarcane cultivation in earnest on the Atlantic islands of Madeira and São Tomé off the African coast. The plantation model established on these islands — large-scale monoculture, African enslaved labour — became the prototype for the sugar production system that would later be transplanted to the New World.^[5]

Christopher Columbus brought sugarcane cuttings to Hispaniola (modern-day Haiti and the Dominican Republic) on his second voyage in 1493.^[5] The Caribbean climate was ideal for growing sugarcane. Over the course of the sixteenth century, Spain, Portugal, and later England, France, and the Netherlands developed Caribbean islands as sugar production bases. Brazil emerged as the world’s largest sugar supplier from the mid-sixteenth century, with Barbados, Jamaica, Martinique, and Guadeloupe following in the seventeenth.

Plantations and Slavery: The Dark Cost of Sugar

The Caribbean sugar economy could not have functioned without the labour of enslaved Africans. The number of people transported from Africa to the Americas through the transatlantic slave trade across the seventeenth and eighteenth centuries is estimated at more than twelve million.^[6] A significant portion of them were bound for sugar plantations.

The working conditions on sugar plantations were extraordinarily brutal. During the cane harvest season (December to May), enslaved people sometimes worked eighteen hours a day. The work at the crushing mills, where harvested cane was pressed to extract juice, and at the boiling houses, where the juice was cooked down to crystallize, was particularly dangerous. Accidents involving limbs caught in machinery and severe burns were common.^[6] Records indicate that in Jamaica the average life expectancy of an enslaved person, even after acclimatization to the new environment, rarely exceeded twenty years.

The cultural anthropologist Sidney Mintz, in his 1985 book Sweetness and Power, argued that sugar was not simply a foodstuff but a political-economic substance in which British industrialization and colonial exploitation were structurally intertwined.^[7] According to Mintz, the mass consumption of cheap sugar by the English working class in the eighteenth century was not a natural change in taste. It was the structural outcome of a connection between plantation enslaved labour in the Caribbean and industrial labour at home. Behind every sweet cup of tea lay two forms of exploitation compounded together.

European demand for sugar rose steeply throughout the eighteenth century. Britain’s per capita annual sugar consumption was approximately two kilograms in 1700, rising to roughly eight kilograms by 1800.^[7] The number of enslaved people transported to the Caribbean grew proportionally to meet this demand. At the peak period between 1740 and 1807, Jamaica alone accounted for thirty-three per cent of the entire transatlantic slave trade.^[6]

This link between sugar and slavery became a central argument of the British abolitionist movement from the late eighteenth century. Led by Quakers and evangelical Christians, a boycott of sugar produced by enslaved labour took hold, and records show that around three hundred thousand people in Britain refused to buy slave-produced sugar in the 1790s.^[7] It was one of the first consumer boycotts in history in which purchasing a single bag of sugar was framed as a moral choice.

Napoleon and the Sugar Beet: An Alternative Born of Blockade

When Napoleon declared the Continental Blockade against Britain in 1806, sugar was among the most immediately affected commodities. With the British Royal Navy dominating the Atlantic sea lanes that carried Caribbean sugar, supplies to continental Europe fell sharply.^[8] As sugar prices soared in Paris, Napoleon turned his attention to the sugar beet technology that Marggraf had discovered half a century earlier.

Napoleon committed extensive state support to research, cultivation, and factory construction for sugar beet in northern France. In 1812, when banker Benjamin Delessert successfully extracted sugar from beet on a large scale at his works in Passy near Paris, Napoleon personally visited his factory and awarded him the Légion d’honneur.^[8] Within just a few years, the number of sugar beet refineries across France had multiplied to hundreds.^[1]

Even after Napoleon’s defeat brought an end to the blockade, the sugar beet industry survived in Europe. Freedom from dependence on Caribbean sugar represented geopolitical independence, and European nations — France, Germany, and Austria in particular — continued to nurture the industry. By the end of the nineteenth century more than half of world sugar production came from sugar beet.^[8]

The Industrial Revolution and the Democratisation of Sugar

The industrial revolution of the nineteenth century transformed sugar into an entirely different commodity. Steam-powered large-scale crushing mills, efficient sugar crystallization through vacuum evaporation technology, and wide distribution networks via railway and steamship — all these technologies combined to drive production costs sharply down.

British import tariffs on sugar were substantially reduced in 1846 and abolished entirely in 1874, bringing the price of sugar within reach of ordinary working-class households.^[9] By the 1880s, Britain’s per capita annual sugar consumption had reached approximately thirty-six kilograms — eighteen times the figure of a century earlier. A substance that had been the exclusive preserve of royalty and aristocracy was now sitting in a bowl beside the teacup of the factory worker.

The democratisation of sugar transformed food culture broadly. Jam, biscuits, confectionery, chocolate, carbonated drinks — all these categories of processed food emerged at industrial scale between the late nineteenth and early twentieth centuries. Sugar also served as a preservative. Processing sugarcane juice into jam or syrup allowed long-term storage. Before refrigeration became widespread, sugar was also a technological solution that revolutionised food preservation for the urban working class.

The Sugar Industry’s Manipulation of Science in the Twentieth Century

As sugar consumption surged through the mid-twentieth century, some scientists began to raise the alarm. British nutritionist John Yudkin published Pure, White and Deadly in 1972, arguing that sugar was a primary cause of heart disease and obesity.^[10] His case was considerably well-founded, but he met fierce resistance from the scientific establishment and the food industry.

The full picture did not emerge until decades later. A study published in JAMA Internal Medicine in 2016 revealed that the Sugar Research Foundation, the industry’s principal trade body, had in 1965 paid Harvard University nutritionists D. Mark Hegsted and Robert McGandy six thousand five hundred dollars — approximately forty-eight thousand dollars in 2016 values — to write a literature review that downplayed the link between sugar and heart disease.^[11]

The paper, published in the New England Journal of Medicine in 1967, pointed to dietary fat and cholesterol rather than sugar as the key dietary risk factors for heart disease. The authors did not disclose that they had received funding from the Sugar Research Foundation.^[11] The paper went on to influence American dietary guidelines and public health policy for decades. A boom in low-fat foods followed, and the space vacated by fat was filled by sugar. Ironically, throughout this period obesity rates and diabetes incidence in western nations rose steadily.

The Modern Sugar Debate: Excess Consumption at a Crossroads

The World Health Organization’s 2015 guidelines recommended that adults limit their free sugar intake to less than five per cent of total energy intake, or roughly twenty-five grams per day.^[12] Yet in the United States, the average adult is estimated to consume approximately seventy-seven grams of added sugar daily — more than three times the WHO recommendation.^[15]

One of the particular problems of modern sugar consumption is the emergence of high-fructose corn syrup (HFCS). From the 1970s onward, the American beverage and processed food industries began to use HFCS, derived from corn starch, extensively as a substitute for sugar.^[13] The debate over whether it is more harmful than conventional sugar remains ongoing, but the near-ubiquity of added sugar across processed foods is widely acknowledged to be structurally driving excessive intake in the modern diet.

Artificial sweeteners that have emerged as alternatives to sugar — saccharin, aspartame, stevia, sucralose, and others — have expanded their market share on the promise of “sweetness without calories.”^[13] Yet these alternatives too remain embroiled in controversy as long-term health research accumulates. The attempt to resolve humanity’s craving for sweetness through technology continues, but evidence that these attempts have fully solved the problem remains absent.

The geography of production has also shifted. Today the world’s largest sugar producer is Brazil, followed by India, China, Thailand, and Pakistan.^[14] Europe and the Caribbean, which dominated the sugar trade until the nineteenth century, remain significant producing regions through their sugar beet industries. A single species of grass that began in New Guinea has, over eight thousand years, redrawn the agricultural map of the entire planet.

What Sugar Has Revealed

The history of sugar is one of the clearest illustrations of what humanity is capable of when it desires something enough. The sweet grass stalk that began in the highlands of New Guinea passed through Indian chemical insight, Arab refinement, and European colonial expansion to change the lives of millions — mostly without their consent.

Even after the abolition of slavery, the sugar industry protected its interests by corrupting science and intervening in public health policy. Decades of faulty dietary guidance accumulated as a result. The history surrounding a bag of sugar is a story of technology, but it is equally a story of how power shapes knowledge.

And right now, somewhere in the world, someone is squinting at the ingredients list on the back of a food packet and asking themselves: “Is this sugar?” That act itself may be the sign that humanity — after thousands of years of chasing sweetness — has finally begun to question it.