Glenfiddich 18 Year Old Our Small Batch & Glenfiddich 15 Year Old Our Solera Glenfiddich was an early advocate of the single malt Scotch category, and their faith is rewarded today by being one of the best-selling Scotch brands in the world. The distillery was built by William Grant in 1886, distilling its first spirit on Christmas day the following year. Today it is still part of the family-owned, William Grant & Sons. They became the first distillery to actively market their single malt brand in 1963, and were the first to open their facility to visitors. Glenfiddich was an important trailblazer in the whisky industry, who's contribution cannot be forgotten. The scale of their operation today is a testament to this. The modern iteration of Glenfiddich's famous 18 year old, this whisky has been matured in a combination of ex-Bourbon and Oloroso sherry casks. Introduced in 1998, this is the very under-rated 15 year old Glenfiddich, married together in the Speyside distillery's solera vat. This version was introduced in 2019. The whisky is matured for 15 years in bourbon, Portuguese sherry and virgin oak, before being married together in the distillery's unique solera vat, which has never been fully emptied since its inception in 1998, according to the distillery, always remaining half full.