The brewery say:
Brewed and released just once a year, each Barrel Aged Empress Tonkoko release spends at least 12 months in a unique selection of barrels.
Heaven Hill Bourbon was selected to add a caramel sweetness, subtle rye spice, and rich oak to add depth to an already deeply decadent beer.
| Brewery | Brew York (York) |
| ABV | 10.6% |
| Style | BA Imperial Stout |
| Package | 330ml Can |
| Allergens | Barley, Lactose |
| Dietary | - |
