Xavier, perhaps that what we should be discussing instead of elaborating the definition of a single malt whisky?
Somehow, the Islay cask makes me irritated. Instead of making an proper Islay malt, William Grant & Sons Ltd has decided to cut corners and still use the increasingly popular word "Islay" while marketing their Balvenie brand.
A couple of months in Laphroaig casks , and voilà! Instant Islay-fication. The nescafé approach to making malt whisky.
It would have been much more honest (ethical, perhaps?) if they had used the Springbank/Longrow approach. Ressurrect an old brand and make an a new, more peated Balvenie. But that would take another 10-12 years. Too long, obviously, for the product managers at Balvenie. They prefer the Nescafé approach.
Balvenie instant islay malt, no thanks