Firstly,active carbon is added into dry wine according to a certain ratio to adsorb involatile substances such as tannin and pigment.

• 首先按一定比例在葡萄酒中加入活性炭吸附葡萄酒中单宁、色素等不挥发性物质,酒液经过聚偏氟乙烯微孔滤膜过滤得澄清无色溶液。