Glenfiddich 15 Years Old

Glenfiddich 15 Years Old was created using a pioneering production technology, namely 'solera'. Aged in European oak sherry casks and new oak casks, the whisky is mellowed in the unique 'solera' cask, which is inspired by the sherry wineries of Spain and Portugal.
The 'solera' cask in question has not been emptied and has been