Kvass

I made some kvass. I'd had it from a stall in the Soviet Union in the late 1980s, and it had stuck in my mind as a nice not-too-sweet soft drink.

I mainly used this recipe but I also followed the 'raisin in each bottle' technique from another recipe. I bottled it in PET water bottles and I gave them a good squeeze before I screwed the lid on. Even so they fermented a lot, and several of the bottles exploded, a bit like in this video.

Still, the kvass was nice, if not exactly like the one I had in the USSR. It was a bit darker. I suspect that this mildly fermented drink is a bit like what the 'small beer' that they drank in the middle ages was like.