Tobacco is grown in more than one hundred countries. Tomatoes and tobacco are both members of the same botanical family. Tobacco smoke contains about 4,000 chemicals.

Magazine - Tobacco


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by Claire Powell and Dave Collett

What’s in a cigarette? What’s in a puff?

Tobacco smoke contains about 4,000 chemicals. Some of which are harmful, others deadly. Here are three of the deadliest.


Tar, a mixture of chemicals such as formaldehyde, arsenic and cyanide, can cause serious lung diseases. Seventy percent of the tar from tobacco smoke remains in the smoker’s lungs.


Many people are unaware that nicotine is more addictive than heroine. A powerful and fast-acting drug, nicotine reaches the brain in about seven seconds. One of the major effects of nicotine is an increased heart rate and blood pressure.

Carbon monoxide

Carbon monoxide is a poisonous gas formed when a cigarette is lit. The red blood cells absorb the gas more easily than oxygen, so up to fifteen percent of a smoker’s blood may be carrying carbon monoxide instead of oxygen. Breathing becomes more difficult because the heart has to work harder to pump less oxygen around the body.

From seed to smoke

What do tomatoes and tobacco have in common? They are both a member of the same botanical family. Tobacco is grown in more than one hundred countries with China being the largest producer, closely followed by the USA. Tobacco can grow well in poorer soils so a typical farmer can expect a good income from planting this crop.

Seeds and fertiliser are often provided by British American Tobacco. The seeds are so small that they must be protected in seedbeds for sixty days before transplanting to the field. Two weeks later, soil is carefully pushed up against the seedlings to further protect them and help to develop a good root system. Finally, after a couple of months, the flowering plants and some of the upper leaves are cut to allow more growth in the remaining leaves. The crop gradually grows towards the harvesting stage.


In most countries harvesting is done by hand. The farmer takes off a few leaves from the lower part of each plant. A typical farmer can expect to harvest about 15,000 plants. This is quite a lot considering each plant contains around 22 leaves.


There are four main methods.

Air-cured tobacco is hung in unheated, ventilated barns until the tobacco dries and the tobacco leaf becomes a light to medium brown colour.

Flue-cured tobacco is made when heat is introduced into a barn through pipes from a furnace outside. The leaves are heated until they turn yellow.

Sun-cured tobacco leaves are hung out on racks and exposed to the sun’s rays. The direct heat turns the leaves a yellow to orange colour.

For fire curing, wood is burnt under the tobacco leaves, which dries the tobacco and produces a smoky fragrance.


There are four stages in processing. Dirt is removed from the cured tobacco. The leaf is separated from the stem (a process known as threshing). The moisture content is checked carefully. The processed tobacco is packed into 200kg cardboard boxes, for shipping to manufacturing sites.


At the factory, the matured tobacco is checked for quality and then carefully blended with other ingredients which are needed for the brand recipe, such as flavourings.

Moisture content is crucial. Too dry and the tobacco leaf will crumble; too moist and it may spoil during storage. The blended tobacco is treated with just the right amount of steam and water to make it supple, and then cut into the form in which it appears in the cigarette. The cut tobacco is then given a quality check.

Cigarette making, once done entirely by hand, is today almost fully automated with the cut tobacco, cigarette paper and filters continuously fed into the cigarette-making machines.

Packing machines put the cigarettes into the familiar brand packs, wrap the packs in protective film and group them into cartons and cases. The completed cases, time-dated to ensure the freshest product possible, are then ready for distribution.


addictive (adj.): unable to stop doing something that can be dangerous.

arsenic (n.): a very strong poison that can kill people.

automated (adj.): from the verb automate - to make a process in a factory or office operate by machines or computers, in order to reduce the amount of work done by humans and the time taken to do the work.

brand (n.): a type of product made by a particular company.

crumble (v.): to break, or cause something to break, into small pieces.

spoil (v.): when something spoils or is spoilt, it is no longer good enough to use.

cure (v.): to treat food, tobacco, etc. with smoke or salt, etc. in order to stop it decaying, to preserve food.

cyanide (n.): a highly poisonous substance.

deadly (adj.): very dangerous.

fertiliser (n.): a natural or chemical substance used to make plants grow.

film (n.): a thin layer of plastic to cover and protect an object.

formaldehyde (n.): a strong smelling gas used for preservation.

fragrance (n.): a smell.

stem (n.): the stick-like central part of a plant which grows above the ground and from which leaves and flowers grow, or a smaller thin part which grows from the central part and which supports the leaves and flowers.

furnace (n.): a piece of equipment for heating a building.

income (n.): the money you receive from doing work.

puff (n.): an amount of smoke inhaled each time a smoker puts a cigarette to his/her mouth.

seedling (n.): a young plant grown from a seed.

supple (adj.): bending or able to be bent easily; not stiff.

ventilated (adj.): from the verb to ventilate, provide air to cause fresh air to enter and move around an enclosed space.





I'm from Armenia, unfortunately tobacco commonly used here.
There is no doubt  tobacco is dangerous for health and I think the true way to battle with this addictive habit is explanation about it to people by mass media.
In my opinion you are doing that by this article.
Thank you very much

well, i was an addicet to smoke but thanks for god i quit,
when i was smoke i knew that is the smoke is not good and it causes a cancer but i wasen't care bout  this cause all my friend was smoke and i feel cool with it then i got little bit sick and start to feel bad for what i am doing to myself and my family so i started to have a good care bout myself 

Smoking is very dangerous thing. I think it is foolishly to spoil health, which God gives to a person. Our body is not a garbage. We must take care of it.

smoking cigarettes is really dangerous for the smoker first of all ,and also for the people who live with the addict .so as to help millions of people live normal and  healthy life government should put severe laws and punishments for firms producing cigarettes and people who plant this contagious plant....

hemm, if we taking about cigarette , it is hard to say way ? because i have ever as smoker , I knew that  all of contains in cigarette  is very bad for your healthy even for passive smoker   , but  i never thinking about that. it like fool , right ?, but impact it is true, i think most of people especially for smoker  exactly will not have found  the answer why they still keeping smoker and ignore their healthy  ? it is called the addict ?

hi every body
thank for ALLAH
no one in my family smoking  and also me
i hate anyone smoking because l believe he didn't care about him self  .or any one  he kill himself.

hi, do you mind to correct some mistakes in your passage......
جملتك (no one in my family is smoking and also me)
جملتي ( Neither me nor my family is smoking)
                                - - - - - - - - - - - - - - - -
جملتك (he didn't care about him self)
( He doesn't car about himself) or ( H's careless about himself)
thank you..................

Hi Adil,
Thank you very much for helping Maryoom with her English. Please remember that the House Rules say that you cannot use other languages, such as Arabic, on LearnEnglish.
Best wishes,
The LearnEnglish Team

I am not a smoker but I have two brothers both of them are smoker. I think it not so good for our health it not only affect smoker's health it also affect many people around. My father used to be a smoker,one time he had some health problem and had to go to hospital and doctors advised that he should have given up smoking for along time. He was not young and he had to give up bad habit a few years ago after several months his health improved clearly. I realize that it's not so easy to give up this bad habit. The smoker rate in my country is quite high especially male. Smoking damages our health day after day but not many people can realize this problem. Experts call smoke is silent killer. Smoking waste money especially damages health of smokers and many people.

This is a good example about how we can get a wrong policy on drugs. Most states all over the world spend millions in a war against drugs but tobacco and alcohol are a huge and legal business. I think  it is more important for us to take care of our own health than states regulations. The main rule for my life must be watch my body as my unique tool to live a good way of life.