Aged in a 30 year old Evan Williams Blue Label barrel. They don’t even sell that whisky in the US. Brewmaster description: "The first beer brewed for the barrel aging program and has been brewed every year since. Originally named after an experimental hop but now brewed with Fuggles which are earthy and resinous. A lean simple barley wine brewed to showcase barrel flavors with massive bourbon barrel notes that morph as the beer warms in the glass."