Only two vattings of the Glenfiddich 50 Year Old were ever produced. The first vatting, in 1991, was created from just nine casks, laid down between 1937 and 1939, one for each of William Grant’s children, who throughout 1887 helped him build The Glenfiddich Distillery by hand. This year’s 50 Year Old comes from the second vatting. Only 50 bottles per year will be released until 2017.