RobertDale (6470) - Lansing, Kansas, USA - MAR 9, 2016
Shared bottle. Pours dark brown with a small tan head. Aroma of fruit and malt. Taste is sweet fruit, tart fruit, and malt. Older bottle, probably past prime. Beaver (1799) - Fort Collins, Colorado, USA - JAN 28, 2016
375 ml bottle, 2012 batch. Pours dark brown with a small tan head that quickly goes to a thin film that leaves some lacing.GarrettB (1599) - San Diego, California, USA - OCT 6, 2014
The aroma is sweet and tart fruity sourness.
The flavor is sweet and tart fruity sourness with a little oxidized roasted malt. The mouthfeel is medium bodied with soft carbonation.
Overall, similar to the brandy but more oxidized with less vinous notes. The sweet and tart fruity sourness dominates in both though. Again, too sweet for me.
February 2nd, 2013 - The Crooked Stave tasting train is rolling along, but even one sampler on an empty stomach is enough to have me reeling just a little bit. The Nightmare on Brett in bourbon barrels was a curious hybrid between two very different drinks which I enjoy for two very different reasons. But cognac is a more unfamiliar creature to me, so I’m tasting this beer without the skills to divorce what might be the effect of the wood, and what might be effect of the brew. On the nose I detect a sweet smelling perfume of chocolate, chocolate covered coffee beans, coconut butter and a fistful of vanilla beans. The flavor is much closer to what I’d expect cognac to taste like, with those chocolate notes appearing again in the taste, given some sharpness and acidity by aging in the cognac barrels. It’s a little tricky for me to describe, but the added layers of flavor remind me of cranberry and tart cherry. This is excellent too, strong and bold, and a demonstration that cognac is another acceptable residence for beer in the long term. wedgie9 (2702) - Nashville, Tennessee, USA - SEP 8, 2014
2012 VintageErnesto987 (6050) - Arizona, USA - APR 22, 2014
Tasted on 9/8/14 from a black waxed and capped 375mL bottle from the original 2012 Cellar Reserve, huge thanks to Aaron Nielsen for muling for me. Pours opaque dark brown with a thick tan head that slowly recedes to thick, uneven lace, leaving messy lace residue along the inside of the glass. The nose is really focused on dark bread, toasted cocoa nib, caramel, molasses, and dark chocolate malt, with plenty of earthy funk, hints of vanilla and cinnamon oak, and just a tinge of citrus expression letting me know that this will be sour. The flavor is much more sour up front and throughout, with very dry brett funk, molasses, some bitterness from the toasted cocoa nib/dark chocolate, and a nice touch of vanilla and cinnamon oak. The body is full with a nice, lightly tannic structure, just under average, very smooth carbonation, and a long tart lemon peel, touch of baking spice, and lightly bitter dark chocolate finish. This beer is very nice and super complex.
small bottle, very sweet here, the tart doesnt ballance the sweetness of the base beer and the barrel treatment. Cognac is a tough one to do, Some complexity but definitely one of the weaker of the series
fonefan (49293) - VestJylland, DENMARK - JAN 6, 2014
deekyn (1459) - San Francisco, California, USA - NOV 1, 2013
Clear dark black brown colour with a average, frothy, good lacing, mostly lasting to diminishing, light beige head. Aroma is moderate malty, roasted, tart, raisin, plum, prune, wood, oak, berry, light chocolate, light soured milk. Flavour is moderate to heavy sweet and moderate acidic with a long duration, wood, brett, berry, alcohol, plums and prunes in alcohol. Body is medium, texture is oily, carbonation is soft - fizzy, finish feel is light alcoholic. 
A - pours cola brown with no head and no lacing. S - wet oak, red wine vinegar, cherries and tart red berries, cognac and brown sugar. M - tart and dry. Medium body with low carb. Some heat in the end. T - red wine vinegar, musty oak, tart red berries, cognac and earth. O - a nice rendition of nightmare. Not as good as the cru. 3.8 back (2151) - Holstebro, DENMARK - OCT 24, 2013
Sort skum brun kort
Stald eddike peber støv alc tømmer blommer
Bitter moderate sur moderate
F1 madsenbryg (371) - Holstebro, DENMARK - OCT 24, 2013
Brun skum, mørk sort , sød alkohol , malt , træ mørk (cacao) kasse, syrlig sur kærnemælk, blomme alkohol , medium , olie, blød.
---Rated via Beer Buddy for iPhone TheAlum (7164) - Aurora, Illinois, USA - SEP 23, 2013
Bottle shared at Sean’s Tasting (Ann Arbor, MI). Pours a deeper blackish brown pour, a brownish glow on the body and edges, darker middle. Frothy tannish head atop dies to a decent ring, laces ok. Aromas are dark fruit, raisin, some cognac and oak. Wet oak, vanilla, decent sourness and lactic life. A bit of toast, toffee, and biscuit. Nice, richer dark fruit elements. Initial is a good dose of spirit, firm sourness, a bit acedic. Some dark fruit, raisins, red and dried grape/raisins. Wet oak, a bit sticky and carmelized. Some vanilla, toastiness. Middle is caramel, wet oak and vanilla, a touch more girthy, the sourness hits a peak and starts to taper from there. A bit more lactic, sour and lemony, yogurty and red fruit, tannic as we hit a gentle smokey earthy feel. Finish is a bit tart, oaky and trailing out. Pretty solid, more dark fruit influence. Some richer oak, not as sour as Bourbon was and lactic driven. Nice.