Unopened cigarettes can be stored for two or three years in a dry environment, but if the environment is not good, they can't be stored for even one year, which is also related to its temperature. If it is summer, cigarettes will not go bad after being opened and kept in a cool place for a week. If you take out a cigarette from a cigarette case in spring, especially when the south wind is wet, you can feel that the cigarette becomes soft and smelly in less than an hour. Wet at room temperature for a week, and it will be broken in three days.
Smoking is harmful to health. Among the eight leading causes of death in the world, tobacco use is a risk factor for six of them. Smoking can cause lung, throat, kidney, bladder, stomach, colon, oral cavity and esophagus tumors, as well as leukemia, chronic bronchitis, chronic obstructive pulmonary disease, ischemic heart disease, stroke, abortion, premature delivery, birth defects, infertility and other diseases, bringing huge but preventable pain and serious loss of productivity.
In addition, tobacco use will also bring huge economic losses to families and countries, including income loss, productivity decline, medical expenses increase and so on.
Extended data
Storage skills of cigarettes:
The warehouses of tobacco companies and cigarette factories have strict requirements for storing cigarettes, among which temperature and humidity are particularly critical. It is best to control the temperature at about 4 degrees Celsius and the humidity at 60%.
Method for store and collecting cigarette by individuals
Cigarettes are easy to get damp and moldy in the external environment for a long time, and lose their proper fragrance, especially expensive brand-name cigarettes. If you don't smoke cigarettes for a while, you'd better not open the package. If you keep it at home, you can put it in the refrigerator. It is generally best not to store cigarettes in this way for more than two years, otherwise, even if cigarettes are not moldy and deteriorated, their taste will change and their quality will be greatly reduced.
If you want to store cigarettes for a longer time, you must wrap them with plastic sheets and seal them, which can prevent them from absorbing moisture and becoming moldy, and will not affect the unique taste of cigarettes.
However, it is seasonal to put cigarettes in the refrigerator, which is a simple way to prevent cigarettes from going moldy, but it is not the best way. Cigarettes stored in the refrigerator for too long are easy to absorb moisture and get wet, which affects the taste, especially some valuable cigarettes with collectible value. Once they get wet, their value will also be lost.
There used to be a good method, but now people are afraid of trouble and don't use it. Just find a big container (such as a jar) that can be sealed, spread a layer of quicklime on the bottom, wrap the cigarette in a plastic bag and tie it tightly, put it on the quicklime, and then wrap the jar tightly with plastic paper. The cigarettes preserved in this way not only retain the original flavor, but also won't absorb water and regain moisture when taken out.
References:
Baidu encyclopedia-cigarettes