An method for imparting an organoleptic quality to a tobacco industry product using a sensate substance obtained from a donor product, the method comprising repeatedly circulating a fluid in a closed loop through a donor product storage chamber containing a donor product and a recipient product storage chamber containing a batch of tobacco industry product so that at least one sensate substance obtained from the donor product is conveyed from the donor product storage chamber into the recipient product storage chamber and into contact with the tobacco industry product to impart an organoleptic quality thereto.