As with any Scotch Whisky, a Single Malt must be distilled in Scotland and matured in oak casks in Scotland for at least three years. (ibwsshowuk.com)
Finally, the retailer announced the addition of a new «top tier» spirits range including an oak - aged gin that has been aged in six types of oak casks over five months (RRP: # 40). (thedrinksbusiness.com)
That's when you take aged whisky, which has been matured for 10 years in American oak casks, and then transfer it for a shorter time in another cask that once contained some sort of wine or fortified wine. (businessinsider.com)