Jameson Irish Whiskey comes from a single distillery in Cork, Ireland. It is a unique mixture of grain, single malt, and single-pot-still spirits, aged for seven years. Read more about how it is made here:
Jameson
Angel’s Share.
Due to the porous nature of the oak barrels, about 2% of the total volume evaporates during the critical aging process. It is this evaporated volume that is presumably savoured by the guardian angels who watch over the precious liquid as it ages.