First Call Cask Strength is a bourbon bottled at a higher proof, so it will usually show a fuller texture and more concentrated flavour than standard-strength releases. For a new whisky drinker, that often means bolder sweetness, oak, and spice, along with a warmer finish.
Bourbon is made primarily from corn and matured in new charred oak barrels, a combination that commonly brings notes like vanilla, caramel, and toasted wood. With cask-strength bourbon, adding a few drops of water can help open the aroma and make it easier to explore.