Knappogue Castle 16 Year Old Twin Wood. March 11, 2013 – Just weeks after releasing a 14-year-old version of its Knappogue Castle Twin Wood Irish Whiskey, Castle Brands is coming out with a 16-year-old version. Just as the earlier release was finished in sherry casks, the 16-year-old version spent 21 months in sherry casks after 14 years and three months in ex-Bourbon barrels.

4,500 signed and numbered bottles of the 16-year-old Twin Wood are available at 40% ABV. The bottles are signed by Castle Brands chairman Mark Andrews III.