Coffee is a widely consumed beverage prepared from the roasted seeds � commonly referred to as beans � of the coffee plant. Though usually served hot, it can also be served cold. A typical 7 fluid ounce (ca. 207 mL) cup of coffee contains 80�140 milligrams of caffeine, depending on the bean and method of roasting and preparation. Some people drink coffee 'black' (plain), others sweeten their coffee or add milk, cream or non-dairy creamer. Coffee represents 71% of all the caffeine consumption in the United States, followed by soft drinks and tea. Coffee, along with tea and water, is one of the most popular beverages world-wide, its volume amounting to about a third of that of tap water in North America and Europe. In 2003, coffee was the world's sixth largest agricultural export in value, behind wheat, maize, soybeans, palm oil and sugar.
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Tea is a beverage made by steeping processed leaves, buds, or twigs of the tea bush (Camellia sinensis) in hot water for a few minutes. The processing can include oxidation, heating, drying, and the addition of other herbs, flowers, spices, and fruits. There are four basic types of true tea: black tea, oolong tea, green tea, and white tea. The term 'herbal tea' usually refers to infusions of fruit or of herbs (such as rosehip, chamomile, or jiaogulan) that contain no C. sinensis. (Alternative terms for herbal tea that avoid the word 'tea' are tisane and herbal infusion.) This article is concerned exclusively with preparations and uses of the tea plant C. sinensis. Tea is a natural source of the amino acid theanine, methylxanthines such as caffeine and theobromine, and polyphenolic antioxidant catechins. It has almost no carbohydrates, fat, or protein. It has a cooling, mildly fragrant, slightly bitter, and astringent flavor.
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Coffee And Tea
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