The Balvenie Doublewood 17 Year Scotch WhiskyTo craft The Balvenie DoubleWood 17 year old single malt whisky Malt Master David C. Stewart MBE returned to one of his most celebrated achievements consecutive maturation in two different types of cask, a process often referred to as cask finishing. This technique is at the heart of The Balvenie DoubleWood it sees the whisky matured first in American oak barrels, which impart soft sweet vanilla notes, before being transferred to European oak sherry