Bowmore whisky differs from other (Islay) distillers in three significant ways:
1. FLOOR MALTING
(more quantity than others)
This is hand-turned in periods between 5-7 days depending on seasons (hotter weather requires less time). In the kilning process, the younger fibrous peat is used (as the vegetal profile will give it a more smoky profile, as opposed to the older peat which yields a thicker, oilier profile). The kilning process is slow (much like the floor malting process), and uses a ‘warm smoke’ to enrich the malt further. It is the floor malting process that starts to develop the fruitier notes.
2. FERMENTATION
(66 hours – clear wort and wooden wash backs)
Bowmore takes time to ferment using clear wort and a blend of yeasts to draw out the fruiter notes that started to develop in the floor malting process. You can detect notes of banana in the fermentation stage. Using old wooden wash back tanks also gives flavour notes to the young liquid.
3. A HIGH AMOUNT OF FIRST-FILL CASKS
(of higher quality)
Over time Bowmore has invested in top-quality casks (both first-fill European oak barrels, ex-bourbon barrels, and Sherry casks). From the sherry cask, the whisky gets its oak spices and dried fruits. From the bourbon, vanilla, and citrus notes.
The No. 1 Vault has an ambient, humid and consistent temperature which makes alcohol evaporate faster – bringing out the fruitier notes faster than anywhere else in the warehouse.