Home Learn Ascorbic acid Decanter Staff November 10, 2010 Vitamin C. Sometimes added to white wines as a preservative. Written by Latest Wine News A Spectacular Day at the 27th DFWE London Scotch producer claims Guinness World Record for ‘The Greatest Variety of Flavours in a Whisky’ French protests: Growers block motorway and hijack lorries containing Spanish wine Baudains: Are old vines important? Trump returns: The impact on the US wine industry