Whisky felling #13. Mortlach of all kinds: Mortlach 1989/2012 DD 56.1%, Mortlach 1989/2014 GM cask #4302 50.0%, Mortlach 1994/2014 MoS cask #14046 53.6%, Mortlach 1997/2017 Chieftain's 56.8%, Mortlach 1992/2017 HL 58.8%, Mortlach 19 yo Manager Dram (bottled 2002) 55.8%

So we took 6 Mortlachs from 6 different bottlers and tried to find the difference..