Method for production of tobacco leaf

Abstract

A present invention provides a method for reducing harmful substances and carcinogenic substances contained in a tobacco leaf. According to the present invention, the harmful substances and the carcinogenic substances are removed beforehand by washing a shredded leaf with a solvent, so that the tobacco leaf having a small amount of the harmful substances and the carcinogenic substances contained therein is produced. The cigarette produced by such a method of the present invention reduces an amount of the harmful substances and an amount of the carcinogenic substances contained in primary smoke and second-hand smoke in a case of the tobacco smoking, and reduces an amount of the harmful substances and an amount of the carcinogenic substances to be taken into a body compared with a cigarette produced in a conventional manner.

1 . A method for producing a tobacco leaf comprising a step of washing a shredded leaf with a solvent. 
   
   
       2 . The method for producing the tobacco leaf according to  claim 1 , wherein the solvent is an ethanol solvent. 
   
   
       3 . The method for producing the tobacco leaf according to  claim 1 , wherein the solvent is an ethanol solvent having a density of greater than or equal to 50 percent. 
   
   
       4 . The method for producing the tobacco leaf according to  claim 1 , wherein the shredded tobacco leaf is washed with water before being washed with the solvent. 
   
   
       5 . The method for producing the tobacco leaf according to  claim 1 , wherein scent is added to the leaf washed with the solvent.