It is generally thought that ‘char’ is an Anglicisation of the Indian word for tea, but ‘char’ is in fact quite a close version of the Chinese for tea, tcha. Tea was grown exclusively in China until the middle of the 19th century, and increasingly large amounts of it were sold to Britain from the early 18th century as it became a more and more popular drink.
Tea drinking was first introduced to the court of King Charles II by his Portuguese wife, Catherine of Braganza. The Portuguese had been trading directly with China for over a hundred years by this time, and were already familiar with the drink. At first only small amounts of tea were imported into England and for some years it remained a luxury item drunk for its medicinal properties as much as for pleasure. It began to grow in popularity in England from about the 1720s when it was sweetened with sugar grown in the West Indian slave plantations. Thereafter the tea, sugar and slave trades grew alongside each other.
Tea plants were successfully transported from China to India by a botanist called Robert Fortune in the 1840s and 1850s. Many people had tried to grow Chinese tea plants outside China from the 1700s, but their attempts had failed largely because it was so difficult to keep plants alive on board ship for any length of time. Fortune used the newly invented Wardian Case to transport the young plants, and the Indian tea industry began. By the mid-19th century, the price of tea had dropped so much that it became the most popular British working-class drink.