I don't know where you are but here, in France, we're finally out of this second and even more awful heat wave. We had up to 42°c (108°f) and it wasn't pleasant at all, it was even scary... So to try to stay hydrated even when it's hot, I swap my usual afternoon and evening teas and infusion for som cold brew ones. I used to prepare it with hot water and then would let it cool down but this is not how you're supposed to do it and this is this way that makes it bitter.
