It's been a week, and the pickled radishes are done.
This is what they looked like last week.
And this is what they look like this week.
I took this picture after I had some with lunch. That explains the extra room at the top. I didn't know what to expect since I've never had radishes made this way before. They turned out really good. They had a sauerkraut like flavor. I really didn't notice much bitterness that radishes usually have. I didn't taste any of them before I put them in the jar, so I don't know how bitter they were to start with.
Anyway, it turned out to be a good experiment. It's certainly something that I'll do again.