BeerBloggers.com has a report on the vertical tasting of Ola Dubh held last night at Novare Res.
The differences among these beers are subtle but noticeable. The 12 tasted the most like a traditional stout. The 18 showed a bit of tar and was lovely. The 30 was my favorite, very smooth…The 40 was round and mellow, and offered more of a beer-whiskey synthesis on the palate.