Product a base of tobacco and advantages of expansion of the tobacco

摘要

P the invention relates to a product of expansion of tobacco which is improved with respect to the current technique. It is placed in contact with the tobacco with co 2 gas under a pressure of at least 17,5 bars for a sufficiently long time in order to impregnate the tobacco with the gas and to obtain a system of tobacco and co2 gas, it releases the pressure and the tobacco treated is subjected to a fast heating to expel the gas co2 and cause the expansion of the tobacco. / p