In a grocery store in Hood River I found the kombucha section terra incognito. There were a few brands I recognized, but the majority were new to me. Many of the companies were local, from Hood River, Bingen, and White Salmon.
I’m guessing the commercial production of kombucha doesn’t need a huge investment which allows smaller players to get into the game.
I tried two local varieties, only one of them earning a “good” rating. I am intrigued to try them all.