In this video, Firestone Walker Brewmaster, Matt Brynildson, discusses two components going into the blend of XV Anniversary Ale: Helldorado Golden Barleywine (a new beer in itself) and Parabola Imperial Stout.
For those not keeping track, the brewery has revealed the following beers are part of XV:
Helldorado Golden Barleywine
Parabola Imperial Stout
Bravo Barrel Aged Brown Ale
Good Foot Barleywine
Velvet Merlin/Merkin Oatmeal Stout
Double Double Barrel Ale Barleywine
An educated guess on the last two coming in the next video: Abacus Barleywine (to be renamed) and Sticky Monkey Barleywine.
How many Barleywines can one brewery produce?