6.Casing and flavoring
工業(yè)科技

        CasingThe solutions used contain mainly sugar and a humectant,both dissolved in water. The sugar helps overcome bitterness in the smoke andmakes it smoother. The humectant,usually glycerine or a higher glycol,serves to keep the tobacco moist and less sens......（本文共 2893 字）     [閱讀本文] >>