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Authors: Peter Macinnis

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In reality, Mandeville did not travel in the area at all, and often told the most outrageous lies about Jews and Muslims. Nonetheless, the interesting intoxicating effect of fermented cane juice was known in many societies.

The mid-600s saw a massive expansion of Islam and sugar. Islamic forces took Cyprus in 644, and even in the first half of the century there were references to sugar cane cultivation in Syria, Palestine and Egypt. By the end of the century sugar had spread all around the Mediterranean, wherever irrigation was available. By 700 the water wheel or
noria
had been brought into use in the crushing of cane, and a period of consolidation followed. Islamic forces reached Spain by 711, but it was only in 755 that the ruler Abd-ar-Rahman I felt things were peaceful enough to send an expedition to the eastern Mediterranean for sugar cane and other plants for his garden in Cordoba.

On a domestic scale, existing technology was adequate for the new crop. The cane was cut into short lengths and crushed under an edge-runner mill, where a stone wheel rolled on its edge around a circular groove. This extracted some of the juice, and more was obtained from a beam press or a screw press. The edge-runner mill had long been used to crush olives, nuts and mineral ores, while the presses were commonly used on grapes and olives. At first, Mediterranean sugar production was essentially a family industry.

At the same time, Muslim travellers visiting tropical areas invariably found sugar cane growing. In 846 a traveller called Ibn Kordadhbeh saw sugar being made in Java, while in 851 an Arab master mariner called Soleiman noted the presence of sugar cane on Madagascar. In the 900s Muslim expansion began to slow. They lost control of Crete in 960 and Cyprus six years later, but their cane fields and sugar mills remained. We know Sicily had mills by this time, because Ibn Hauqal wrote in 950 that the ‘Persian reed' was growing on the banks of the rivers and streams around Palermo, and that juice was obtained by feeding cane into pressing mills. By the eleventh century, sugar cane was being grown in Morocco and Tunisia.

In 1060 the Normans invaded Sicily and by 1090 the balance of power in the Mediterranean was changing fast: the Normans controlled Sicily, and the Arabs lost Malta in the same year. The first Crusade began in 1099, and soon enough,

Sugar
in
the Mediterranean after
AD
700.

returning Crusaders were spreading the word in Europe about sugar and sugar cane. Sugar was imported into northern Europe, initially as a medicine, and then as an addition to food and drink.

The medical uses of sugar have a venerable tradition. Buddha declared that it was no sin for a sick person to ask for
gur
, and Pliny had noted sugar's medicinal uses. The prophet Muhammad recommended dates, which have a very high sugar content, as medicine. In the thirteenth century, a theological debate in the Catholic church dealt with the status of sugar. Was it medicine, nourishment, or just for pleasure? Thomas Aquinas took the view that those who resorted to sugar during Lent did so for health reasons, not for nourishment—and in 1353 a French royal decree required apothecaries to swear never to use honey when sugar was prescribed.

However, things change. By 1581 Abraham Ortelius, a Flemish cartographer, would comment that ‘what used to be kept by apothecaries for sick people only is now commonly devoured out of gluttony'. Even so, the French kept the expression ‘like an apothecary without sugar' to indicate a state of utter desperation or helplessness. We still use sugar in medicines today, but in the Mary Poppins mode of improving the taste rather than as a cure. The sugar market has changed vastly from what it was around 1100, when the Crusaders first came across sugar as they travelled to a holy war of looting and pillaging.

THE FOUR CURSES OF SUGAR

Notwithstanding Mr Conrad's concerns about the dreariness of sugar-refining treatises, we need at least a basic understanding of the process that reduces sugar cane to a commodity which can be sold. We also need some insight into the fact that sugar is a special crop with special problems. These problems are the four curses of sugar.

From the sett, the short length of cane planted in the ground, to refined sugar is a costly process. The ground must be cleared, the setts have to be planted, and the field kept free of weeds until the cane is high enough not to be shaded out. After the first cane is cut, some fifteen months later, the root stock will produce several more ratoon crops at yearly intervals, but after several years the ratoons need to be replaced.

The cut cane is hauled to a crushing mill, where the juice is squeezed out. In early forms of refining, the sticky sap would be collected in containers before being boiled down, while a worker skimmed the scum off the top, until crystals formed: sugar crystals which were lifted off with a wooden spatula, leaving a rich brown molasses behind. This sugar was brown and sticky, not unlike the Indian
gur
, and far from the white, free-running crystals we know today.

This simple technology was known in Islamic society from the Umayyad period, which ended in AD 750. When the Crusaders arrived in Palestine they were happy to cash in, expanding production for export to Europe. The remnants of the sugar mills of Tawahin Al Sukkar may still be seen in Jericho, along with the remains of the aqueduct which brought the water from Ain Duyuk to power the mill.

Workers squashed the cane in a water-driven mill, and then pressed the flattened cane to extract the juice, which was boiled down in copper vessels, presumably with the addition of some ash. The product was placed in wicker baskets or earthenware containers to dry and harden. With the Crusaders in charge of the operation, people from all over Europe now had access to the technology, and to the cane.

Growing sugar as a commercial crop was rather different from growing a small garden or household supply. In its simplest form, the crushed-out juice is a mixture of water, sugar and a number of impurities, mainly suspended materials, fats, waxes and proteins, some of which need to be destroyed as soon as possible by boiling. The nuisance proteins are enzymes in the cane which convert the sucrose, or cane sugar, to ‘invert sugar', a mix of glucose and fructose, once it is cut. Sucrose is a disaccharide, a molecule made of these two simple sugars or monosaccharides. Both glucose and fructose also taste sweet, but they lack some of the properties that sucrose offers when foods are being made.

In some parts of the world, high-fructose corn syrup may be used in foods, but bakers, confectionery and cereal manufacturers overwhelmingly prefer sucrose because of its bulking, texture and browning characteristics, so it is a disaster if the sucrose inverts in the cane before it is processed. As a rule, the juice needs to be boiled within 16 to 24 hours of cutting, in order to destroy the enzymes and so save the sucrose. Adding an alkali— either ash or lime—brings the impurities out of the solution as a precipitate called filter mud, while some of the other material forms a layer on the surface that needs to be skimmed off. Further boiling then leads to sugar crystals.

Once sugar growing became a larger-scale activity, a system of powered rollers was needed to crush the cane, as well as a channel to deliver the juice to the first of a series of metal boiling pans, and a suitable alkali for addition to the first pan of juice. Fuel was needed to heat the juice, land to grow the cane, and reserves to keep the growers going for fifteen months until the first crop matured. They needed transport to get the cane to where it would be crushed, iron hoops and timber staves for barrels, coopers and carpenters, a blacksmith to make or repair tools, animals and animal drivers, people to gather feed for the animals and to grow food for the workers, and much more. This is the first curse of sugar: it is capital intensive. To make a profit from a mill, once it was established, there is a certain minimum size of crop.

Where a number of people tried to share a central mill, however, tensions could arise when different farmers had cane ready for processing at the same time. Because the enzymes in the cane juice begin to do their work as soon as the cane is cut, immediate treatment is required. The need for speed in processing the crop is the second curse of sugar.

The mature sugar cane stem is about 75 per cent water and 15 per cent sucrose, while the rest is mainly fibre. To obtain a ton of sugar, more than seven tons of cane must be cut and hauled to the mill to be crushed, and five tons of water evaporated. This is the third curse of sugar, that it is hungry for fuel. All too often, sugar planters would destroy the forests around their plantations to obtain fuel.

Sugar making in the past was labour intensive. The fourth curse of sugar arose when slavery became a cheap solution to the labour problem.

A CROP BECOMES AN INDUSTRY

The Crusaders' Palestinian sugar operations produced only small amounts. (These days it would be called a boutique industry.) Sugar production for the European market did not become commercial until Crete came under Venetian control in 1204. Sugar was initially so valuable that the household records of England's King Henry III refer to the procurement of three pounds of sugar in 1226 as a special item, yet less than 400 years later Shakespeare's Clown regarded that same amount as a normal purchase. Still, the Clown was about to be robbed, so perhaps Shakespeare was signalling that a fair amount of money was involved.

In 1280 a cargo of sugar on 600 camels, bound from Egypt to Baghdad, was captured by Mongols under Hulagu, the grandson of Genghis Khan. The Middle Eastern sugar trade had become a major item after sugar production in Persia was largely wiped out following the death of Mostasim, the last Abassid Caliph, killed by Hulagu's Mongols in 1258. From the end of the thirteenth century, the sugar sold to Europe and the Middle East came from the Mediterranean area, which was just a single ship voyage away from the ports of northern Europe.

This was a situation the seafaring Venetians were gradually able to exploit. Just as the great Muslim traders had done before them, the Venetians travelled, explored and reported on what they saw. Some historians doubt that Marco Polo (1254–1324) really made it to China, but if he did not, then he was careful to gather intelligence from those who
had
been there, and so we should trust him when he writes of Fu-ju (Fukien):

They have an enormous quantity of sugar. From this city the Great Khan gets all the sugar that is used at Court, enough to represent a considerable sum in value. You must know that in these parts before the Great Khan subjected it to his overlordship, the people did not know how to prepare and refine sugar as is done in Egypt. They did not let it congeal and solidify in moulds, but merely boiled and skimmed it, so that it hardened to a kind of paste, and was black in colour. But after the country had been conquered by the Great Khan, there came into the regions men of Egypt who had been at the Court of the Great Khan, and who taught them to refine it with the ashes of certain trees.

Around 1285 Polo reported that sugar was being made in China, India and east Africa, but he noted only the production of palm wine in Java. Around this time, Muslims captured the rest of Palestine, largely closing European access to its sugar. This stimulated production in other parts of the Mediterranean.

The first recorded commercial importation of sugar into England was in 1319, but during the fourteenth century sugar remained rare and expensive at two shillings a pound. As a measure of its rarity, Geoffrey Chaucer, a wealthy courtier and diplomat as well as a writer, makes only five references to sugar in his
Canterbury Tales
, written in about 1387. It would never be so costly again.

Production in Palestine, Egypt and Syria declined in the fourteenth century as Cyprus, Crete and the western Mediterranean took over as the main centres. The fall-off in Egypt may have been due to Mameluke misrule, as some writers claim. It may also have been due to population losses in the middle of the century from the Black Death, which disrupted both labour-intensive sugar growing and the maintenance of Nile irrigation systems, since Nile sugar needed 28 separate irrigations, all managed by hand. This drop in production gave Venice and Genoa the opening they needed.

THE NAVIGATORS, SUGAR AND SLAVERY

We can often see patterns in history that suggest inevitability. Before Robert Louis Stevenson wrote
Treasure Island
, children's books almost always had stern morals attached, but new worlds of fiction opened up after that book appeared, including the adult adventure fiction of Arthur Conan Doyle and others, catering for the
Treasure Island
generation as they came of age. It seems as though all the small bits gradually added together, like raindrops in a failing dam, until eventually there was a monstrous outpouring.

In retrospect, Renaissance navigation looks like a similar outburst. The factors that came together included better materials for sails and cordage, a better understanding of timbers, new ways of rigging boats so they could sail into the wind, better compasses—and a need to sail into new areas. That need came about in part because of Islamic sea power and piracy in the Mediterranean, and in part because there were good trading reasons for venturing into the Atlantic. It was known that there were islands out there, some inhabited by people who could be conquered, and some free of humans, ready for the taking. So whatever the cause, the fifteenth century saw ships sailing off in all directions.

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