an espresso has less caffeine than a cup of coffee!

A cup of drip brewed coffee has about 115 milligrams of caffeine, an espresso (and percolated coffee) about 80mg, while instant coffee has about 65mg of caffeine. Decaffeinated coffee is not totally caffeine free, containing about 3mg of caffeine. A can of Coca-Cola has about 23mg of caffeine, Pepsi Cola 25mg, Mountain Dew 37mg, and TAB 31mg. Tea has about 40mg of caffeine, while an ounce of chocolate contains about 20mg.

The first Espresso machine was introduced in 1822 by the French, but it was the Italians who later perfected and distributed it.

Coffee businessCoffee is the world's most popular stimulant: 4 out of 5 Americans drink it, consuming more than 400 million cups a day. Consumption in Scandinavian countries is more than 12kg (26lb) per capita. With more than 25 million people employed in the industry, coffee is second only to oil in world trade.

Although coffee is believed to have been grown near the Red Sea since the 7th century, an Arabian author of the 15th century, Shehabeddin Ben, wrote that Ethiopians enjoyed coffee ever since anyone could remember. By the 16th centuries, coffee plants were found throughout the Yemen region of Arabia. After a Turkish ambassador introduced it to the court of Louis XIV in 1669, Europeans quickly acquired a taste for it. A few years later, the Dutch introduced coffee into Java. In 1714, the Frenchman Desclieux planted a single cutting of a coffee tree on the island of Martinique. Plantations soon grew from French Guiana to Brazil and Central America. Today, coffee is planted in moist regions around the world.

Instant coffee was invented in 1906 by Mr. G. Washington, an Englishman living in Guatemala.