The production method is to dry the tobacco, cut it into shreds, and then roll it into a cylindrical strip with a length of about 120mm and a diameter of 10mm. When smoking, light one end and inhale the smoke from the other end. Tobacco is a plant native to South America whose leaves can be chewed or smoked into cigarettes. The first people to use tobacco were the Red Indians in the Americas.

By the time European explorers arrived in the New World, tobacco use was already widespread in the Americas. By the sixteenth century, tobacco was introduced to Europe and then spread throughout the world. Before the 20th century, tobacco was mostly used in the form of chewing, snuffing, pipes, and cigars. In the late 19th century, paper cigarettes became the main form of tobacco use due to the invention of machines for making cigarettes.

Extended information:

Main ingredients of cigarettes:

Although the chemical substances in cigarettes are mainly dry tobacco, many additives have been added after chemical treatment . Cigarette smoke contains about 4,000 chemical substances, many of which are toxic, mutagen-causing substances and thousands of carcinogens.

Radioactive isotopes are one of the causes of lung cancer in cigarette smokers. The polonium-210 in cigarettes cannot be expelled from the body. It can enter blood vessels and cause lesions in the heart, liver and stomach. Cigarettes also contain radium-226 and lead-210. Radioactive isotopes are derived from mineral fertilizers. From the 1960s to the 1980s, it was discovered that smokers had radioactive isotopes in their bodies. Smoke from lit cigarettes also contains carcinogens such as nitrosamines and benzopyrene.

Baidu Encyclopedia--Cigarettes