When the Abbasid army conquered northern India about 750 AD, the troops brought back sugar cane to the rest of the Islamic empire. Maybe the climate changes of the Medieval Warm Period encouraged West Asians to try this new crop. Sugar soon reached North Africa and Spain, because they were part of the Islamic Empire. Sugar was a big hit, and farmers began to grow sugar cane all over West Asia and Egypt. Islamic food scientists invented new presses to get more juice out of the sugar cane. Islamic traders also brought sugar to the east coast of Africa, as far south as Zanzibar, and possibly also across the West Africa.
Europeans were too poor to buy much sugar in the Early Middle Ages, but as the wool industry got going again in the 1100s AD, Europeans got richer. Venetiantraders started to buy more sugar (along with Indian spices like pepper and cinnamon) from Fatimid Egypt to sell in Europe. The English word “sugar” comes from the Indian word “sakkara”, and the English word “candy” comes from the Arabic word for sugar, “qand”, from the Indian word “khanda”, meaning “lump”. The Fatimids produced more and more sugar in the 1100s. Salah al-Din and the Ayyubids produced even more sugar in the 1200s AD, building water-mills to grind it.
But Egyptian sugar production ran into trouble in the 1300s under the Mamluks. Many Egyptians died of the bubonic plague (the Black Death). Nomads destroyed many sugar mills in Upper Egypt. The Mamluk government didn’t do a good job organizing trade, and as sugar got more expensive, Egyptian producers paid their workers less and cheated on the quality. Europeans, tired of buying expensive, bad quality Egyptian sugar, began to try to grow sugar cane closer to home. Sugar cane wouldn’t grow in Northern Europe, but Europeans grew sugar in Cyprus, and in southern Spain, and in the Canary Islands.
European manufacturers developed cheaper ways to make better sugar. For one thing, they used slave labor (paying workers even less than Egyptians did!). Sugar cane needed a lot of workers to harvest it and crush it, so the Europeans began to force people from the Black Sea area and from West Africa to work as slaves on the sugar cane farms. By the 1400s, Europeans had turned the market around and were selling sugar to Egypt and West Asia. Even so, sugar was still expensive in Europe, and only richer people could afford it.