A cigarette is a tobacco product manufactured out of cured and finely cut tobacco leaves, which are rolled or stuffed into a paper-wrapped cylinder (generally less than 120 mm in length and 10 mm in diameter). The cigarette is ignited at one end and allowed to smoulder for the purpose of inhalation of its smoke from the other (usually filtered) end, which is inserted in the mouth. They are sometimes smoked with a cigarette holder. The term cigarette, as commonly used, refers to a tobacco cigarette but can apply to similar devices containing other herbs, such as cannabis. A cigarette is distinguished from a cigar by its smaller size (hence the name), use of processed leaf, and paper wrapping; cigars are typically composed entirely of whole leaf tobacco. Cigarettes were largely unknown in the English-speaking world before the Crimean War, when British soldiers began emulating their Ottoman Turkish comrades, who resorted to rolling their tobacco with newsprint.

Manufacture and ingredients

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There are thousands of cigarette brands all over the world. They all differ by design, taste, flavour and content. Commercial cigarettes and cigarette tobaccos rarely contain pure tobacco. Manufacturers often use additives to maintain blend consistency, improve perceived blend quality, as preservatives and even in order to completely change the organoleptic qualities of the tobacco smoke. While this is true for many brands of cigarettes, in Canada the major cigarette brands all contain 100% natural Virginia Leaf - no additives. Some cigarettes (known as kreteks, clove cigarettes, or simply cloves) have cloves blended with the tobacco. This is done to enhance the smoker's pleasure by numbing the mouth and lungs and providing a mild euphoric effect. Lower-quality clove cigarettes simply have a clove essence added to the tobacco.

In addition to additives, cigarette tobaccos, especially lower-quality blends, are often highly physically processed. During the original processing of leaf for cigarettes, the leaves are deveined and the lamina is shredded or cut. Since the leaf is relatively dry at this point these processes result in a significant amount of tobacco dust. Manufacturing operations have developed procedures for collecting this dust and remaking it into usable material (known as reconstituted sheet tobacco). The removed leaf midveins, which are unsuitable for use in cigarettes in their natural state, were historically discarded or spread on large fields because of their high nitrogen content. Procedures have been developed, however, to "expand" the stems and process them for inclusion in the cigarette blends. All these procedures allow cigarette manufacturers to produce as many cigarettes as possible using the least amount of raw materials as possible. The most common usage of the cigarette is tobacco smoke delivery. The second most common usage of the cigarette is for marijuana smoke delivery. The hand-rolled cigarette is the most common form of marijuana cigarette. Marijuana smokers will usually twist the ends of the cigarette to prevent fine cut marijuana buds from falling out. Tobacco users who roll their own cigarettes, however, will usually not twist the cigarette at the ends; hand rolling tobacco is made in strands so it doesn't have a tendency to fall out.

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ScottishTobacco (Shafiqul Hai) Mon, 04 Jan 2010 11:45:04 -0000
Scottish Tobacco has a Private Lounge (Sinan Lounge) where customers can relax and conduct business meetings http://cli.gs/SThome
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GraceBarkwell (GraceBarkwell) Mon, 04 Jan 2010 11:39:47 -0000
Early tobacco exposure causes emphysema http://bit.ly/7ClqNH
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Brandnewfatboy (Giles Newton) Mon, 04 Jan 2010 11:30:59 -0000
Engineered tobacco plants have more potential as a biofuel http://is.gd/5LLEP
http://tinyurl.com/yapysh8 Tobacco: 2. What kinds of cancer does tobacco cause in smokers?
so_white (so_white) Mon, 04 Jan 2010 11:30:06 -0000
http://tinyurl.com/yapysh8 Tobacco: 2. What kinds of cancer does tobacco cause in smokers?
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forexnewsroom (Steve Morlat) Mon, 04 Jan 2010 11:29:52 -0000
Italian Annual Inflation Rises Further In December: Italian consumer prices including tobacco increased at a fa.. http://bit.ly/6Jy8KN
if every tobacco smoker replaced there smoke with cron the world will be a better place "love peace fredom" = heaven
mYsTaRiV69 (mike) Mon, 04 Jan 2010 11:28:25 -0000
if every tobacco smoker replaced there smoke with cron the world will be a better place "love peace fredom" = heaven

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