I cold brewed about 2 tbsp of this in 2 cups of water in the fridge overnight.
The taste is somewhat tart and berry-like. The tartness is definitely moreso of the lemony variety and not hibiscus, which would probably make a lot of people happy! Unfortunately though, I’m tasting the medicinal rooibos flavour that I’m not a big fan of, and that’s kind of ruining it for me. It’s still drinkable though, so anyone who doesn’t have that same association with rooibos would probably love it! Still need to try it hot before completely giving up though.