Lead engineer of kvass facility speaks: Dear Colossus, unfortunately, right now we produce our kvass only for inner consumption. After LWB merging with Alster Union, we dont have enough mash and bread for kvass mass producing. Producing from synthetic fast-growing biomass only started and we have much works around making it more similar with rye bread to make flavor of kvass as more natural as we can. For now, if you have New-Moscow visa, you can taste kvass in any cafeteria on Zhukovsky station.