I've been experimenting with different flavors of water kefir. I've decided that I don't like the fresh strawberries in it. It tastes weird to me, like half rotten strawberries. It's drinkable with a couple of squeezes of fresh lime, but I don't think I make that recipe again.
I do like the lemon, lime, ginger flavor...a lot! It's so refreshing! I added some fresh blueberries to a couple of the bottles and it made the WK pink, but didn't add much to the flavor.
I'm going to try adding some vanilla extract to a couple of bottles, for a, "cream soda," taste. We'll see how that works out. I also have some root beer herbs that I could add.