A hard to find special edition Bushmills that is made using a high proportion of whiskey that is made from crystal malt. 

Crystal malt is seldom used for distilling as it yields little alcohol when compared to standard malt. It does give a richer, sweeter flavour and adds a wonderful maltiness and viscosity to this whiskey. 

One of the best Bushmills available at the moment, second only to the equally ellusive 21 year old.