Penelope Bourbon Four Grain Barrel StrengthPenelope Barrel Strength is bourbon in its purest form. Completely uncut and non chillfiltered, our barrel strength bourbon is just as delicious and even more powerful than our signature Four Grain blend. Each batch of our Barrel Strength is blended from three bourbon mash bills and aged in hand selected new American oak barrels, imparting notes of caramel syrup and subtle barrel char and pushing the boundaries of our Four Grains balanced flavor