Angels Envy Cask Strength is a Small Batch Port Barrel finished bourbon released on an annual basis. This is a 2015 release, batch C4 and one of 7,500 bottles, from a batch aged between 4 and 7 years. After its time in American white oak the carefully selected spirit spends a further 3 to 6 months in 59 gallon Ruby Port Wine Casks imported from Europe.