fonefan (33332) - VestJylland, DENMARK - FEB 26, 2014
2.1 AROMA 4/10 APPEARANCE 3/5 TASTE 4/10 PALATE 3/5 OVERALL 7/20
Can 500ml. @ [ (chriso Pre-GBBF Shindig) by chriso - London ].
Clear light dark brown amber colour with a average, frothy, good lacing, mostly lasting, off-white head. Aroma is light moderate malty, dark bread, earthy, brown sugar. Flavour is moderate to heavy sweet with a long duration, bread, brown sugar. Body is medium, texture is oily, carbonation is soft to flat. 
cazort (501) - Philadelphia, Pennsylvania, USA - FEB 4, 2014
3.4 AROMA 7/10 APPEARANCE 5/5 TASTE 5/10 PALATE 5/5 OVERALL 12/20
A second example of Kvass that I’ve tried, noticeably different from the other brand (Buket Chuvashii) and I think I very slightly prefer this one. Can from Bell’s Market in NE Philly. Pours very dark brown, coffee-like: almost opaque. About a centimeter of thick, foamy head dissipates quickly, leaving thin but persistent carbonation. Strong aroma of pumpernickle and molasses, hints at worcestershire sauce, soy sauce, or dark rice vinegar. Sweet and sour; neither the sweetness nor sourness is unpleasant. Very balanced. Rich, heavy, extremely filling, like drinking liquid bread.
jackl (3868) - Charlottesville, Virginia, USA - JAN 19, 2014
2 AROMA 3/10 APPEARANCE 3/5 TASTE 4/10 PALATE 2/5 OVERALL 8/20
@ Chriso’s Pre-GBBF Shindig. The pour’s brown with a tiny bubbly head. The nose is straight-up sweet grain, little else. Brown sugar. A touch artificial. The taste is slightly tangy roasted nut, caramel, apple. As thin as it is sweet. Light body, zero carbonation.
Rasmus40 (9881) - Beder, Aarhus, DENMARK - SEP 22, 2013
1.4 AROMA 2/10 APPEARANCE 3/5 TASTE 2/10 PALATE 2/5 OVERALL 5/20
Can from supermarket, Ayia Napa, Cyprus. Clear reddish brown with a beige head. Aroma is sweet and dominated by soy sauce. Flavor is quite sweet. Sweet finish. Watery. 220913
anders37 (15596) - Malmö, SWEDEN - SEP 16, 2013
1.5 AROMA 4/10 APPEARANCE 3/5 TASTE 2/10 PALATE 1/5 OVERALL 5/20
Can @ Chriso’s Pre-GBBF Shindig ’13. Pours a dark amber color with a small off-white head. Has a fruity malty bready aroma. fruity slightly sour bready caramel flavor. Has a fruity malty grainy bready finish.
Theydon_Bois (7005) - The ’Sham, Surrey, ENGLAND - SEP 1, 2013
1.8 AROMA 4/10 APPEARANCE 3/5 TASTE 3/10 PALATE 3/5 OVERALL 5/20
Can at Chriso’s Pre-GBBF Shindig 2013, 10/08/13.
Dark mahogony brown with a thin tan head.
Nose is brown rye bread, earthy, brown sugar.
Taste comprises sweet sweet raw bread pudding.
Light bodied, fine carbonation, sweet sweet finish.
£0.69 worth of Kvasness - what more do you want ??? A plastic bottled version perhaps !?!
Post edit - this fucker just dropped my average beer rated from 3.4 to 3.39 !
jaghana (3503) - Strasbourg (France), FRANCE - AUG 31, 2013
2 AROMA 5/10 APPEARANCE 3/5 TASTE 4/10 PALATE 1/5 OVERALL 7/20
Can 50cl, a clear copper beer with low head. Aroma is sweet with caramel notes, body is like water with dry grapes notes with a sour touch. Bit strange even is not bad on the taste part.
Marduk (2039) - Tallinn, ESTONIA - AUG 27, 2013
1.8 AROMA 4/10 APPEARANCE 1/5 TASTE 5/10 PALATE 1/5 OVERALL 7/20
Tap. Redish-brown color. Tiny to almost no head. To drink it just after their 2% kvas is mistake. This is basically caramel and sugar concentrate mixed with water.
Scopey (5557) - Croydon, Greater London, ENGLAND - AUG 22, 2013
1.7 AROMA 3/10 APPEARANCE 3/5 TASTE 3/10 PALATE 2/5 OVERALL 6/20
Can at Chriso’s Pre-GBBF Shindig 2013. It pours deep brown with a medium yellow-white head. The nose is caramel, earth, brwon bread, and sugar. The taste is damn sweet....caramel, sugar, brown bread and tangy raisin with a sugary finish. Light body and moderate carbonation. Damn sweet and sugary, but definitely not the worst Kvass out there...
Camons (5092) - Hasselager, DENMARK - AUG 18, 2013
1.4 AROMA 3/10 APPEARANCE 3/5 TASTE 2/10 PALATE 2/5 OVERALL 4/20
Can @ Hotelroom, Rethymnon. Pours ddark brown with a creamy light brown head. Aroma is burnt caramel, brown sugar, ryebread, colalike sweet. Flavor is very sweet with sticky brown sugar all over the place, some caramel, rye, cola in there aswell. Medium body, soft carbonation, sticky sweet finish. Just awfull. 180813