Jefferson's Reserve Very Old Kentucky Straight Bourbon Whiskey Very Small BatchJefferson's Reserve Very Old Kentucky Straight Bourbon Whiskey Very Small Batch In 1997, when Jeffersons was first starting out, we found a 15 year old bourbon that we immediately knew was rich, complex and needed to be brought to market. It was in 2003 that we decided to bring in other bourbons to marry with the original Jeffersons Reserve. Similar to Jeffersons, we still use over 50% of that mash bill and add up to 3 more bourbons to create more