Distillery Character: Ardbeg is revered for producing some of the peatiest whiskies in the world, characterised by their deep, smoky profiles. This particular vintage would have been distilled during a period when the distillery was known for creating exceptionally peaty spirits, which were then mellowed by years of maturation.

Cask Influence: The specific cask numbers indicate a limited release, and the choice of cask would significantly influence the flavour profile. If these were ex-bourbon barrels, one might expect a cleaner, sharper influence of vanilla and oak. If they were sherry casks, they would impart richer notes of dried fruit and spice.

Nose:

  • Intense Peat: The aroma of peat is unmistakable, likely to be bold and complex.
  • Maritime Notes: Given Ardbeg’s coastal location, a sense of the sea might be evident, with hints of iodine, salt, and wet stones.
  • Citrus and Fruit: A lighter, zestier quality may cut through the smoke, offering balance with notes of lemon or green apple.
  • Vanilla and Caramel: A sweet undercurrent from the influence of the oak, with possible hints of coconut or toffee.

Palate:

  • Smokey Depth: Peat dominates the palate, rich and encompassing, with a layered smokiness.
  • Sweet and Spicy: Depending on the cask, there might be a dance of sweet and spicy elements, such as cinnamon, nutmeg, and dark chocolate.
  • Full-bodied Texture: The mouthfeel would likely be viscous and oily, coating the palate and emphasising the whisky’s intensity.

Finish:

  • Lasting Impressions: The finish would be expected to be long and warming, with the peat smoke lingering.
  • Evolving Flavours: A gradual emergence of herbal or medicinal notes, along with a residual sweetness, could provide a satisfying end to the tasting experience.

Additional Attributes:

  • Bottler’s Mark: Signatory Vintage’s bottling would ensure that the whisky’s profile is well-preserved and presented at its natural strength, often unchillfiltered for maximum flavour.
  • Rarity and Desirability: As with many independent bottlings, this Ardbeg would be a collector’s item, sought after for its unique characteristics and the reputation of both the distillery and the bottler.
  • Reflective Experience: This whisky would not just offer a tasting experience but also a moment to reflect on the history and craft of one of Islay’s most iconic distilleries.

The Ardbeg 1991 Signatory from casks 622 and 623 would stand as a proud representation of Islay whisky, offering depth, complexity, and a memorable journey through the senses, sure to be appreciated by those who seek out the nuanced character of single malts.