To solve the problem of harmful effects of tobacco smoke, littering cigarette butts, a fire caused by a burning cigarette end, or the like, and to satisfy a person with the flavor of tobacco without using fire.

Tobacco leaves are processed into food products such as the form of candy, gum, or confectionery, or the form of small tablet with which a person can relish the taste and flavor of the tobacco. The tobacco leaves are properly roasted by applying heat thereto, and the roasted leaves are processed into small nanopowder. The processed nanopowder is processed into various edible food products. Various types of foodstuffs are added into the nanopowder to be mixed and kneaded. The kneaded material is processed into food products with which the person can relish the taste and flavor of the tobacco. The tobacco leaves are processed into food products in the forms of the candy, gum, and confectionery, which require no fire so as to have no burning and smoke, thus solving the problem of the harmful effects of the smoke or a fire caused thereby.