Ungstrup (37558) - Citizen of the universe, DENMARK - MAY 4, 2016
A hazy amber beer with a thin yellowish head.The aroma has notes of spices and herbs. The flavor is sweet with notes of lemons, herbs, menthol, and malt, leading to a tart finish. Martinus (4601) - Baarle-Nassau, NETHERLANDS - NOV 8, 2015
Clear amber colour, no real head. Sour aroma, raisins, malts and rye. Sour flavour, vinegar, citric acid. Bit thin. Finish rye. Not really kvass, imho.VsXsV (4437) - Stockholm, SWEDEN - DEC 30, 2014
(From 66cL bottle @ After GBBF tasting, chriso’s place, London 2014)
Draught at CBC 2014. Hazy golden liquid with a medium white head. Aroma of red berries, lemons, bread and white pepper. Taste is dry and medium sour with notes of red berries, bread and rye. Light bodied with medium carbonation. Pretty peculiar, but good. Stuu666 (13367) - Edinburgh, SCOTLAND - DEC 18, 2014
Bottle at Craig’s. Sour apple and sweet toffee, definitely not kvas but nice anyway. fonefan (49293) - VestJylland, DENMARK - NOV 6, 2014
mR_fr0g (12067) - Hertfordshire, ENGLAND - AUG 25, 2014
Draught @ CBC 2014 [ Red Session ]. - Copenhagen Beer Celebration 2014, Sparta Hallen, Gunnar Nu Hansens Plads 11, 2100 Copenhagen, Denmark
[ As Beavertown Uncle Joe Russian Kvass ].
Unclear medium orange color with a small to average, frothy, fair lacing, mostly diminishing, off-white head. Aroma is moderate malty, caramel, tart fruit - kvass. Flavour is moderate sweet and acidic with a long duration, tart fruit, kvass. Body is medium, texture is watery, carbonation is soft. 
Keg at the Copenhagen Beer Celebration 2014, red session. 03/05/2014. Clouded orange, coloured pour with a reluctant white halo of head. Aroma is rat reaspberry, rye spices, bready malts. Flavour is sour citric acid, lemon and bready doughy malts. Palate is sharp and crisp. Interesting. Ferris (15259) - Burnaby, British Columbia, CANADA - AUG 13, 2014
Bottle - Malty and medicinal. Clear copper with no head. Pure vinegar and I wouldn’t even mix it with oil. This did not age well, and I can’t blame the brewer as it was past it’s prime. Rasmus40 (20632) - Beder, Aarhus, DENMARK - JUN 16, 2014
CBC. Hazy dark golden with an off-white head. Aroma is sweet, malty, fruity and milky. Flavor is medium sweet and light acidic. Dry and light acidic finish. Not sure this was intended by the brewer, but it works for me. 030514 pentaz (1264) - Frederiksberg, DENMARK - JUN 11, 2014
Draught @ CBC2014. Pours very hazy orange with a minimal head. Aroma is caramel, lemon, orange fruit, toasted malt, mild oxidized, lactic and bread.
Taste is light+ sweet, bitter and tart. Body is medium, texture is oily, carbonation is flat. Finishes dry with caramel and lemon. Borup (14460) - Albertslund, DENMARK - JUN 2, 2014
Draught at CBC 2014. Hazy ambe colour wiht a white head. Aroma and flavour of fruit, malt, citrus and bready notes.